Difference between revisions of "Publications"

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Ph.D. Thesis

A. Ortega, "Optimization techniques for adaptive quantization of image and video under delay constraints", Ph.D. Thesis, Dept. of Electrical Engineering, Columbia University, Jun. 1994

Complete set of PhD theses can be found here

Journal Publications

K. Ramchandran, A. Ortega, K. M. Uz and M. Vetterli, "Multiresolution Broadcast for Digital HDTV Using Joint Source-Channel Coding", IEEE Journal on Selected Areas in Communications , Vol. 11, No. 1, Jan. 1993.
A. Ortega, K. Ramchandran and M. Vetterli, "Optimal Trellis-based Buffered Compression and Fast Approximations", IEEE Transactions on Image Processing, Vol. 3, No. 1, Jan. 1994.
K. Ramchandran, A. Ortega and M. Vetterli, "Bit Allocation for Dependent Quantization with Applications to Multiresolution and MPEG Video Coders", IEEE Transactions on Image Processing , Aug. 1994.
A. Ortega, M. Garrett and M. Vetterli, "Rate constraints for packet video transmission based on joint source/network criteria". Annales des Telecommunications. Vol. 50, No. 7-8, pp. 603--616, Jul.-Aug. 1995.
A. Ortega and M. Vetterli, Adaptive scalar quantization without side information, IEEE Transactions on Image Processing, Vol. 6, No. 5, pp. 665--676, May 1997.
C.-Y. Hsu, A. Ortega and A. R. Reibman, "Joint Selection of Source and Channel Rate for VBR Video Transmission under ATM Policing Constraints" IEEE Journal on Sel. Areas in Communications, Special Issue on Real-Time Video Services in Multimedia Networks, Vol. 15, No. 6, pp. 1016-1028, August 1997.
Liang-Jin Lin, Antonio Ortega, "Bit-Rate Control Using Piecewise Approximated Rate-Distortion Characteristic", IEEE Transactions on Circuits and Systems for Video Technology , Vol. 8, No. 4, pp. 446-459 , Aug. 1998.
T. V. Lakshman, A. Ortega and A. R. Reibman, "VBR video: Trade-offs and potentials ", Proceedings of the IEEE, Vol. 86, No. 5, pp. 952--973, May 1998.
A. Ortega and K. Ramchandran, "Rate-Distortion Techniques in Image and Video Compression," IEEE Signal Processing Magazine , pp. 23-50, Vol. 15, No. 6, Nov. 1998.
Chi-Yuan Hsu, Antonio Ortega and Masoud Khansari, ``Rate Control for Robust Video Transmission over Burst-Error Wireless Channels , IEEE Journal on Selected Areas in Communications, Special Issue on Multimedia Network Radios, Vol. 17, No. 5, pp. 756-773, May 1999.
Y. Yoo, A. Ortega and B. Yu, "Image Subband Coding using Progressive Classification and Adaptive Quantization", IEEE Transactions on Image Processing, Vol. 8, No. 12, pp. 1702-1715, Dec. 1999.
W. Woo and A. Ortega, "Optimal Blockwise Dependent Quantization for Stereo Image Coding", IEEE Transactions on Circuits and Systems for Video Technology , (Transactions letter), Sep. 1999.
C. Chrysafis and A. Ortega, "Line Based, Reduced Memory, Wavelet Image Compression IEEE Transactions on Image Processing , vol. 9, No. 3, pp. 378--389, March 2000.
W. Woo and A. Ortega, "Overlapped Block Disparity Compensation with Adaptive Windows for Stereo Image Coding", IEEE Transactions on Circuits and Systems for Video Technology , (Transactions letter), vol. 10, No. 2, pp. 194-200, March 2000.
K. Lengwehasatit and A. Ortega, "Probabilistic Partial Distance Fast Matching for Motion Estimation", IEEE Transactions on Circuits and Systems for Video Technology , Vol. 11, No. 2, pp. 139-152, Feb. 2001.
W. Jiang and A. Ortega, "Lifting Factorization Based Discrete Wavelet Transform Architecture Design," IEEE Transactions on Circuits and Systems for Video Technology , Vol. 11, No. 5, pp. 651--657, May 2001.
J. Cabrera, A. Ortega and J. I. Ronda, "Stochastic rate-control of video coders for wireless channels", IEEE Transactions on Circuits and Systems for Video Technology, Vol. 12, Num. 6, pp. 496--510, June 2002.
Z. Miao and A. Ortega, "Scalable Proxy Caching for Streaming Video Services over QOS and Best-effort networks " IEEE J. on Sel. Areas in Comm., Special issue on Internet Proxy Services, Accepted for publication, Dec. 2001.
B. Beferull-Lozano and A. Ortega, "Efficient Quantization for Overcomplete Expansions in R^N", IEEE Transactions on Information Theory , Vol. 49, No. 1, pp. 129-150, January, 2003.
D. Comas, R. Singh, A. Ortega and F. Marques, "Unbalanced Multipled Description Video Coding Based on a Rate-Distortion Optimization", EURASIP Journal on Applied Signal Processing , Accepted for publication, Nov. 2002.
R. Singh and A. Ortega, "Erasure Recovery in Predictive Coding Environment using Multiple Description Coding", Journal of VLSI Signal Processing Systems for Signal, Image and Video Technology, Vol. 34, Issue 1-2, pp. 9-28, May-Jun 2003.
K. Demirciler and A. Ortega, "Vector Quantizer Design by Reduced Complexity Deterministic Annealing ", EURASIP ASP, 2005.
K. Lengwehasatit and A. Ortega, "Scalable Variable Complexity Approximate Forward DCT", IEEE Transactions on Circuits and Systems for Video Technology, Nov. 2004.
Huisheng Wang, N.-M. Cheung and Antonio Ortega, "A Framework for Adaptive Scalable Video Coding Using Wyner-Ziv Techniques," EURASIP Journal on Applied Signal Processing, 2005.
N.-M. Cheung, Caimu Tang, Antonio Ortega and Cauligi S. Raghavendra, "Efficient Wavelet-based Predictive Slepian-Wolf Coding for Hyperspectral Imagery," EURASIP Journal on Signal Processing, 2005.
N. Srinivasamurthy, A. Ortega and S. Narayanan, "Efficient Scalable Encoding for Distributed Speech Recognition", Speech Communication, Vol. 48, pp. 888-902, 2006.
R. Singh and A. Ortega, "Reduced-complexity Delayed-decision Algorithm for Context-based Image Processing Systems", IEEE Transactions on Image Processing, Vol. 16, No. 8, pp. 1937-1945, Aug. 2007.
J.H. Kim, P. Lai, J. Lopez, A. Ortega, Y. Su, P. Yin and C. Gomila, "New Coding Tools for Illumination and Focus Mismatch Compensation in Multiview Video Coding", IEEE Transactions on Circuits and Systems for Video Technology, Vol. 17, No. 11, Nov. 2007.
S. Asgharzadeh, R. Pique-Regi, R. Sposto, H. Wang, Y. Yang, H. Shimada, K. Matthay, J. Buckely, A. Ortega and R.C. Seeger, "Prognostic Significance of Gene Expression Profiles of Metastatic Neuroblastomas Lacking MYCN Gene Amplification", Journal of the National Cancer Institute, Vol. 98, No. 17, Sep. 2008.
R. Pique-Regi, J. Monso-Varona, A. Ortega, R.C. Seeger, T.J. Triche and S. Asgharzadeh, "Sparse representation and Bayesian detection of genome copy number alterations from microarray data", BIOINFORMATICS, Vol. 24, No. 3, pp. 309--318, 2008.
N.-M. Cheung, H. Wang and A. Ortega, "Sampling-based Correlation Estimation for Distributed Source Coding Under Rate and Complexity Constraints", IEEE Transactions on Image Processing, Vol. 17, No. 11, Nov. 2008.
H. Wang and A. Ortega, "Rate-Distortion Optimized Scheduling for Redundant Video Representations", IEEE Transactions on Image Processing, Vol. 18, No. 2, Feb. 2009.
R. Pique-Regi, A. Ortega and S. Asgharzadeh, "Joint estimation of copy number variation and reference intensities on multiple DNA arrays using GADA", Bioinformatics, Mar. 2009.
W. Pan and A. Ortega, "Adaptive computation control of variable complexity Fano decoders", IEEE Transactions on Communications, Vol. 57, No. 6, June 2009.
W.-t. Tan, G. Cheung, A. Ortega and B. Shen, "System and Optimizations for Community Streaming with Interactive Visual OverlayS", IEEE Transactions on Multimedia, Vol. 11, No. 5, pp. 986-997, Aug. 2009.
G. Shen and A. Ortega, "Transform-based Distributed Data Gathering". IEEE Transactions on Signal Processing, July 2010. arXiv:0909.5177v3
Y.-H.Kim and A. Ortega, "Distributed Encoding Algorithm for Source Localization in Sensor Networks", EURASIP Journal on Advances in Signal Processing, vol. 2010, Article ID 781720, 13 pages, 2010. doi:10.1155/2010/781720.
G. Cheung, A. Ortega and N.-M. Cheung, "Interactive Streaming of Stored Multiview Video using Redundant Frame Structures", IEEE Transactions on Image Processing, March 2011.
K.-H. Lee, A. Ortega, A. M. Nejad, and I. Ershaghi "An Active Method for Characterization of Flow Units Between Injection-Production Wells by Injection Rate Design", accepted for publication, SPE Reservoir Evaluation & Engineering, 2011.
G. Cheung, V. Velisavljevic and A. Ortega, "On Dependent Bit Allocation for Multiview Image Coding & View Synthesis", IEEE Transactions on Image Processing, vol. 20, No. 11, pp. 3179-3194, Nov. 2011.
Y.-H. Kim and A. Ortega, ,"Quantizer Design and Rate Allocation for Source Localization in Sensor Networks", IEEE Transactions on Signal Processing, Nov. 2011.
K.-H. Lee, A. Ortega, N. Jafroodi, I. Ershaghi, "A Multivariate Autoregressive Model for Characterizing Producer-producer Relationships in Water foods from Injection/Production Rate Fluctuations", SPE Journal, submitted, 2010.
M. F. Duarte, G. Shen, A. Ortega and R. G. Baraniuk, "Signal Compression and Wireless Sensory Networks", Philosophical Transactions of the Royal Society A, January 13, 2012 370 (1958) 118-135.
R. Pique-Regi, A. Ortega, A. Tewfik, and S. Asgharzadeh, "Detecting Changes in DNA Copy Number: Reviewing signal processing techniques", IEEE Signal Processing Magazine, vol. 29, no. 1, pp. 98-107, Jan. 2012.
S. K. Narang and A. Ortega, "Perfect Reconstruction Two-ChannelWavelet Filter-Banks For Graph Structured Data", IEEE Transactions on Signal Processing, Vol. 60, No. 6, pp. 2786-2799, June 2012, also in arXiv:1106.3693v2.
P. Carballeira, J. Cabrera, A. Ortega, F. Jaureguizar and N. Garcia ,"A framework for the analysis and optimization of the encoding latency for multiview video", IEEE Journal on Selected Topics in Signal Processing, Sept 2012.
D. I. Shuman, S. K. Narang, P. Frossard, A. Ortega and P. Vandergheynst, "Signal Processing on Graphs: Extending High-Dimensional Data Analysis to Networks and Other Irregular Domains", IEEE Signal Processing Magazine, Accepted for publication, Nov. 2012, also in arXiv:1211.0053.
S. K. Narang and A. Ortega, "Compact Support Biorthogonal Wavelet Filterbanks for Arbitrary Undirected Graphs", submitted, IEEE Transactions on Signal Processing, Nov. 2012, also in arXiv:1210.8129.
Y. Lin and A. Ortega, “Object-based high contrast travel time tomography”, submitted, SEG Geophysics, March 2013, also in arXiv 1303.3052.

==

Book Chapters

A. Ortega, "Video transmission over ATM networks", in Microsystems Technology for Multimedia Applications, B. Sheu et al. Eds., IEEE Press, May 1995.
A. Ortega and M. Khansari, "Video Transmission over Wireless Links: State of the Art and Future Challenges", in Handbook of Communication Technologies: The Next Decade , R. Osso, Ed., CRC Press, 1999.
A. Ortega, ""Variable Bit-rate Video Coding ", in Compressed Video over Networks , M.-T. Sun and A.~R. Reibman, Eds, pp. 343-382, Marcel Dekker, New York, NY, 2000.
A. Ortega and Y. Liu, "Lossy Compression of Haptic Data", in Touch in Virtual Environments, M. McLaughlin, Ed., IMSC Press, Prentice-Hall, 2001.
A. Ortega and H. Wang, "Bandwidth Adaptation Mechanisms", in Multimedia networking and communications, P. A. Chou and M. Van der Schaar, Eds., Elsevier, 2007.

Selected Refereed International Conferences

1993-94

A. Ortega, M. W. Garrett and M. Vetterli, "Toward joint optimization of VBR video coding and packet network traffic control", In Proc. Packet Video Workshop '93, Berlin, Mar. 1993.
A. Ortega, Z. Zhang and M. Vetterli, ``A Framework for the Optimization of a Multiresolution Remote Image Retrieval System, Infocom'94, pp. 672--679, Toronto, Jun. 94.
A. Ortega and M. Vetterli, ``Multiple leaky buckets for increased statistical multiplexing of ATM video", Packet Video Workshop '94, Portland, Oregon, Sept. 94.
A. Ortega and M. Vetterli, ``Adaptive quantization without side information, Int'l. Conf. on Image Proc. ICIP '94, Austin, Texas, Oct. 1994.

1995

A. Ortega and K. Ramchandran "Forward-adaptive quantization with optimal overhead cost for image and video coding with applications to MPEG video coders, IS&T/SPIE, Digital Video Compression: Algorithms and Technologies '95, San Jose, Feb. 95.
Liang-Jin Lin, Antonio Ortega and C. C. Jay Kuo ``Gradient-based buffer control technique for MPEG , In Proc. of Visual Communic. and Image Proc., VCIP '95, Taipei, Taiwan, May 1995
Liang-Jin Lin, Antonio Ortega and C. C. Jay Kuo, ``A Gradient-based rate control algorithm with applications to MPEG Video , 2nd. Int'l. Conf. on Image Proc. ICIP '95, Washington, D.C., Oct. 1995.
Antonio Ortega and Masoud Khansari ``Rate control for video coding over variable bit rate channels with applications to wireless transmission , 2nd. Int'l. Conf. on Image Proc. ICIP '95, Washington, D.C., Oct. 1995.
Chi-Yuan Hsu and Antonio Ortega ``Joint Encoder and VBR Channel Optimization with Buffer and Leaky Bucket Constraints , Symposium on Multimedia Communications and Video Coding, Brooklyn, NY, Oct. 1995.
Youngjun Yoo and Antonio Ortega, ``Adaptive Quantization Without Side Information using SVQ and TCQ, in Proc. of the 29th Asilomar Conf. on Signals, Sys. and Computers, Pacific Grove, CA, Oct.-Nov. 1995.

1996

Youngjun Yoo, Antonio Ortega, and Kannan Ramchandran, ``A Novel Hybrid Technique for Discrete Rate-Distortion Optimization with Applications to Fast Codebook Search for SVQ , in Proc. of ICASSP'96, Atlanta, GA, May 1996.

Liang-Jin Lin, Antonio Ortega and C. C. Jay Kuo,``Cubic Spline Approximation of Rate and Distortion Functions for MPEG Video , In Proc. of IS\&T/SPIE, Digital Video Compression: Algorithms and Technologies '96, San Jose, Feb. 96.

Liang-Jin Lin, Antonio Ortega and C. C. Jay Kuo] ``Rate Control Using Spline-Interpolated R-D Characteristics , In Proc. of Visual Communic. and Image Proc., VCIP '96, Orlando, Fla, March 1996

Woontack Woo and Antonio Ortega, ``Stereo Image Compression with Disparity Compensation Using the MRF Model , In Proc. of Visual Communic. and Image Proc., VCIP '96, Orlando, Fla, March 1996

Y. Chung, C.-Y. Hsu, A. Ortega and J. Kuo, " A histogram based method for video-network interfaces in ATM networks", Packet Video Workshop'96, Brisbane, Australia, March 1996.

A. Ortega, "Optimal rate allocation under multiple rate constraints", Data Compression Conference'96, Snowbird, UT, Mar. 1996.

Y. Yoo, A. Ortega and B. Yu, "Adaptive Quantization of Image Subbands with Efficient Overhead Rate Selection". ICIP'96, Lausanne, Switzerland.

C. Chrysafis and A. Ortega, "Context-based Adaptive Image Coding". Proc. of the 30th Asilomar Conf. on Signals, Sys. and Computers, Pacific Grove, CA, Nov. 1996.

1997

Chi-Yuan Hsu, Antonio Ortega and Masoud Khansari, ``Rate control for robust video transmission over wireless channels , In Proc. of Visual Communic. and Image Proc., VCIP '97, San Jose CA, Feb 1997
Woontack Woo and Antonio Ortega, ``Stereo Image Compression based on Disparity Field Segmentation , In Proc. of Visual Communic. and Image Proc., VCIP '97, San Jose CA, Feb 1997
Krisda Lengwehasatit and Antonio Ortega, ``DCT Computation with Minimal Average Number of Operations , In Proc. of Visual Communic. and Image Proc., VCIP '97, San Jose CA, Feb 1997
C. Chrysafis and A. Ortega, [http://sipi.usc.edu/~ortega/Papers/dcc97.pdf "Efficient Context-based Lossy Wavelet Image Coding"</a>. Proc. of Data Compression Conference, Snowbird, UT, Mar. 1997.
Krisda Lengwehasatit and Antonio Ortega, ``Distortion/Decoding Time Tradeoffs in Software DCT-based Image Coding , In Proc. of ICASSP'97, Munich, Germany, April 1997
Y. Chung, A. Ortega and J. Kuo, [http://sipi.usc.edu/~ortega/Papers/iscas97.pdf ``Call Admission: Dimensioning a Single VBR Video Source Using Transition Probability Matrix </a>, IEEE International Symposium on Circuits and Systems, Hong Kong, June 1997.
Antonio Ortega, Fabio Carignano, Serge Ayer and Martin Vetterli, ``[./SoftCaching/mmsp97.html Soft Caching: Web Cache Management for Images ], In IEEE Signal Processing Society Workshop on Multimedia, Princeton, NJ, June 1997
Wenqing Jiang and Antonio Ortega, ``Forward/Backward Adaptive Context Selection with Applications to Motion Vector Field Encoding , 4th. Int'l. Conf. on Image Proc. ICIP '97, Santa Barbara, CA, Oct. 1997.

1998

Wenqing Jiang and Antonio Ortega, ``Backward Context Adaptive Interframe Coding , Visual Communications and Image Processing'98, San Jose, CA, Jan. 1998.
Woontack Woo and Antonio Ortega ``Dependent Quantization for Stereo Image Coding, Visual Communications and Image Processing'98, VCIP98, San Jose, Jan. 1998.
Chi-Yuan Hsu and Antonio Ortega ``A Lagrangian optimization approach to rate control for delay-constrained video transmission over burst-error channels, In Proc. of ICASSP'98, Seattle, Washington, May 1998.
Krisda Lengwehasatit and Antonio Ortega "DCT Computation Based on Variable Complexity Fast Approximation", In Proc. of Intl' Conf. of Image Proc., ICIP'98, Chicago, IL, October 1998
Paul Fernandez and Antonio Ortega, "" An Input Dependent Algorithm for the Inverse Discrete Wavelet Transform", In Proceedings of the Thirty Sixth Asilomar Conference on Signals, Systems and Computers, Asilomar '98, November 1-4, 1998.
Youngjun Yoo, Younggap Kwon, and Antonio Ortega ``Embedded Image-Domain Adaptive Compression for Simple Images, Proc. of the 32nd Asilomar Conf. on Signals, Sys. and Computers, Pacific Grove, CA, Nov. 1998.
Zhourong Miao and Antonio Ortega ``Rate control algorithms for video storage on disk based video servers, In 32nd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, November, 1998.

1999

Woontack Woo, and Antonio Ortega, "Modified Overlapped Block Disparity Compensation for Stereo Image Coding", In Proc. of Visual Communic. and Image Proc., VCIP '99, San Jose, CA, Jan 1999
Wenqing Jiang and Antonio Ortega "Multiple Description Coding via Polyphase Transform and Selective Quantization, In Proc. of Visual Communic. and Image Proc., VCIP '99, San Jose, USA, Jan 1999
W. Jiang , A. Ortega , "Multiple Description Coding via Scaling-Rotation Transform, " Proc. of ICASSP 1999 , Phoenix, AZ, Mar. 1999.
K. Lengwehasatit and A.Ortega, "Complexity-distortion Tradeoffs in Vector Matching basd on Probabilistic Partial Distance Techniques ", Proc of DCC'99, Snowbird, UT, Mar. 1999.
Z.Miao and A.Ortega,"Proxy Caching for effficient video services over the Internet ", Packet Video Workshop '99, New York,NY,Apr. 1999.
W.Jiang, and A.Ortega, "Parallel architecture for the discrete wavelet transform based on the lifting factorization, "SPIE, Parallel and Distributed Methods for Image Processing III, Denver, CO, Jul 1999.
A.Ortega, W. Jiang, P. Fernandez and C. Chrysafis,"Implementations of discrete wavelets transform:Complexity, Memory and Parallelization issues",(Invited Paper),SPIE, Wavelet Applications in Signal and Image Processing VII, Denver, CO, Jul 1999.
R. Singh and A. Ortega, "Erasure recovery in predictive coding environments using Multiple Description Coding", Workshop on Multimedia Signal Processing, Denmark, Sept. 1999.
C.Chrysafis and A.Ortega, "An Algorithm for Low Memory Wavelet Image Compression ", ICIP'99, Kobe, Japan, Oct. 1999.
Y.Yoo, Y.Kwon and A.Ortega,"Embedded Image-Domain Compression sing Context Models", ICIP '99,Kobe, Japan, Oct. 1999.
W.Jiang and A.Ortega,"Efficient Discrete Wavelet Transform Architectures Based on Filterbank Factorizations",ICIP'99, Kobe, Japan, Oct. 1999.
K.M.Chugg, K.Demirciler and A.Ortega,"Soft Information for Source Channel Coding and Decoding", in 33rd Asilomar Conf. on Signal, System and Computers, Pacific Grove,CA , Oct. 24-27,1999, pp. 326-331.
B.Beferull-Lozano and A.Ortega,"Coding Techniques for Steerable Transforms ",in Proc. of Asilomar'99,Pacific Grove, CA Oct. 1999.

2000

P.Sagetong and A.Ortega, "Optimal Bit Allocation for channel-adaptive Multiple Description Coding", Image and Video Communication and Processing 2000,pp 53-63, SanJose,CA, Jan 2000.
S.Lee and A.Ortega,"Online rate control for Digital cameras for near constant distrotion based on mimimum/maximum criterion", Image and Video Communication and Processing 2000, San Jose, CA, Jan 2000.
R. Singh, A. Ortega, L. Perret and W. Jiang, "Comparison of Multiple Description Coding and Layered Coding based on the Network Simulations", Image and Video Communications and Processing 2000, San Jose, CA, Jan 2000.
W.Pan and A.Ortega, "Complexity-Scalable Transform Coding using Variable Complexity Algorithm ", Data Compression Conference, DCC 2000, Snowbird, UT, Mar. 2000.
W.Jiang and A.Ortega, "Multiple Description Speech Coding for Robust Communication over lossy packet networks", IEEE Intl. Conf. on Multimedia and Expo, ICME 2000, New York, NY, Jul-Aug. 2000.
N.Srinivasmurthy, Q.Zhu, A.Ortega and A.Alwan,"Toward Efficient and Scalable Sppech Compression Schemes for Robust Speech Recognition Applications", IEEE Intl. Conf. on Multimedia and Expo. ICME 2000, NewYork, NY, Jul-Aug 2000.
C.Chrysafis and A.Ortega, "Minimum memory implementations of the lifting scheme ", SPIE Conf. SanDiego, CA, Aug.2000.
N. Aranki, W. Jiang and A. Ortega,"FPGA-Based Parallel Implementation for the lifting Discrete Wavelet Transform",Parallel and Distributed Methods for Image Processing IV,SPIE's 45th Annual Meeting, San Diego, CA, Aug. 2000.
K. Lengwehasatit and A. Ortega, "Rate Complexity Distortion Optimization for Quadtree-Based DCT Coding ",ICIP 2000, Vancouver,BC, Canada, September 2000.
K. Lengwehasatit and A. Ortega, "Computationally Scalable Distance Based Fast Search Motion Estimation ", ICIP 2000, Vancouver, BC, CanadaSeptember 2000.
A. Ortega, B. Beferull-Lozano, N. Srinivasamurthy, and H. Xie,"Compression for Recognition and Content based Retrieval", In Proc. of the Eurppean Signal Processing Conference, EUSIPCO'00 , Tampere, Finland, September 2000(Invited Paper).
R.Singh and A.Ortega,"Adaptive Lookahead based Lossy Context Coding",ICIp 2000, Vancouver, BC, Canada, September 2000.
Z. Miao and A. Ortega,"Optimal Scheduling for the Streaming of Scalable Media ", Proc. of Asilomar Conf. on Signals, Systems and Computers, Pacific Grove, CA, Oct-Nov. 2000.

2001

W. Pan, A. Ortega, I. Hajj-Ahmad and R.Sannino, "Proxy-Based Aopproaches for IDCT Accleration", VCIP 2001, San Jose, CA, Jan 2001.
H.Xie and A.Ortega,"Feature representation and Compresion for content based retrieval", VCIP 2001, San Jose, CA, Jan 2001.
N.Srinivasmurthy and A.Ortega,"Joint Compression-Classification with Quantizer/Classifier Dimension Mismatch",VCIP 2001, San Jose, CA, Jan 2001.
B. Beferull-Lozano and A.Ortega, "Construction of Low Complexity Regular Quantizers for Over-Complete Expansions in R^n ", In Proc. of DDC 2001, Snowbird, UT, Mar. 2001.
B. Beferull-Lozano and A.Ortega,"Efficient Quantizers for Over Complete Expansion in Rexp(N), in Proc. of ICASSP 2001, Salt Lake City, UT, May 2001.
J.Chou, K. Ramachandran and A. Ortega,"High Capacity Audio Data Hiding for Nosiy Channel", in Proc. of ICASSP 2001, Salt Lake City, UT, May 2001.
H. Komi and A. Ortega," Analysis of Cache Efficiency in 2D Wavelet Transform", in Proc. IEEE Intl. Conference on Multimedia and Expo, ICME 2001, Tokoyo, Japan, Aug 2001.
P. Sagetong and A. Ortega," Analytical Model-Based Bit Allocation for Wavelet Coding with Application to Multiple Description Coding and Region of Interest Coding ", in Proc. IEEE Intl. Conf. on Multimedia and Expo., ICME 2001, Tokoyo, Japan, Aug. 2001.
W. Jiang and A. Ortega,"A novel packet loss recovery technique for multimedia communication ", in Proc. of IEEE Intl. Conf. on Multimedia and Expo., ICME 2001, Tokyo, Japan Aug. 2001.
N.Srinivasmurthy, A. Ortega and S. Narayanan," Use of model transformation for distributed speech recognition",ISCA Workshop on Adaptation Methods for Speech Recognition, Sophia Antipolis, France, August 29-30, 2001.
N.Srinivasmurthy, A. Ortega and S. Narayanan,"Efficient Scalable Speech Compression for Scalable Speech Recognition ", In Proc. of Eurospeech 2001, Aarborg, Denmark, Sept. 2001.
D. Comas, R. Singh and A.Ortega," Rate-Distortion Optimization in a Robust Video Transmission Based on Unbalanced Multiple Description Coding", IEEE Worksop on Multimedia Signal Processing, MMSP01, Cannes, France, Oct. 2001.
S. Lee and A. Ortega," A Novel Approach for Image Compression in Digital Cameras with Bayer Color Filter Array", in Proc. of IEEE Intl. Conference on Image Processing,ICIUP '01, Thessaloniki,Greece, Oct. 2001.
J. Cabrera, A. Ortega and J.I.Ronda,"Stochastic Rate-Control of Video Coders for Wireless Channels", in Proc. of IEEE Intl. Conference on Image Processing, ICIP' 01, Thessaloniki, Greece, Oct. 2001.
P. Thiennviboon, A. Ortega and K. M.Chugg,"Simplified Grid Passing Algorithm with Application to Digital Image Halftoning ", in Proc. of IEEE Intl. Conference on Image Processing, ICIUP'01, Thessaloniki, Greece, Oct. 2001.
W. Pan and A. Ortega, "Buffer Control for Variable Complexity Fano Decoders ", Globecom 2001, San Antonio, TX, Nov. 2001.

2002

H. Chung, A. Ortega, A. A. Sawchuck, " Low Complexity Motion Estimation for Long Term Memory Motion Compensation", VCIP 2002, San Jose, CA, Jan 2002.
Z. Miao and A. Ortega, "Expected Run-Time Distortion Based Scheduling for Delivery of Scalable Media ", Packet Video Workshop 2002, Pittsburgh, PA, Jan. 2002.
R. Singh and A. Ortega,"Modeling Temporal Dependence in packet loss using universal modeling concepts", Packet Video Workshop 2002, Pittsburgh, PA.
L. Vasudevan and A. Ortega, "Processing-Aware Compression for Sensor Networks," 2nd IEEE Sensor Array and Multichannel Signal Processing Workshop, Aug. 2002.
J. Hespanha, A. Ortega and L. Vasudevan, "Towards the Control of Linear Systems with Minimum Bit-Rate ", 15th Intl. Symp. on Mathematical Theory of Networks and Systems, MTNS 2002, Notre Dame, IN, Aug. 2002.
P.Sagetong and A. Ortega," Rate Distortion Model and Analytical Bit Allocation for Wavelet based Region of Interest Coding", ICIP 2002, Oct. 2002.
H. Chung and A. Ortega," Low Compexity Motion Estimation Algorithm by Multiresolution Search for Long-Term Memory Motion Compensation", Submitted, ICIP 2002, Oct. 2002.
S. Y. Lee and A. Ortega," Optimal rate control for video coding based on a hybrid MMAX/MMSE criterion", ubmitted, ICIP 2002, Oct. 2002.
Z. Miao and A. Ortega,"Fast Adaptive Media Scheduling Based on Expected Run-Time Distortion", Proc. of Asilomar Conf. on Signals, Systems and Computers, Pacific Grove, CA, Nov. 2002.

2003

P. Thiennviboon, A. Ortega and K. M.Chugg,"Model Based Digital Image Halftoning using Iterative Reduced-Complexity Grid Message-passing Algorithm", in Proc. of SPIE Color Imaging: Processing, Harcopy and Applications. San Jose, CA, Jan. 2003.
H. Wang and A. Ortega,"Robust Video Communication by Combining Scalability and Multiple Description Coding Techniques.", in Proc. of SPIE, San Jose, CA, Jan. 2003.
R. Rejaie and A. Ortega, "PALS: Peer to Peer Adaptive Layered Streaming , in Proc. of NOSSDAV'03 Monterey, CA, June 2003.
N. Srinivasamurthy, A. Ortega, and S. Narayanan" Towards Optimal Encoding for Classification with Applications to Distributed Speech Recognition, in Proc. of Eurospeech 2003 Geneva, Sept. 2003.
J. Cabrera, J. I. Ronda, A. Ortega and N. Garcia, " Stochastic rate-control of interframe video coders for VBR channels", IEEE International Conference on Image Processing (ICIP) , Barcelona, Sep. 2003.
B. Beferull-Lozano, H. Xie, and A. Ortega, " Rotation-Invariant Features Based on Steerable Transforms with an Application to Distributed Image Classification", IEEE International Conference on Image Processing (ICIP) , Barcelona, Sep. 2003.
H. Chung, D. Romacho and A. Ortega, "Fast Long-term Motion Estimation for H.264 Using Multiresolution Search", IEEE International Conference on Image Processing (ICIP) , Barcelona, Sep. 2003.
K. Demirciler and A. Ortega, "Image Coding Based on Multiple Projections and Multi-stage Vector Quantization", IEEE International Conference on Image Processing (ICIP) , Barcelona, Sep. 2003.
Huisheng Wang and Antonio Ortega, "Robust Video Communication by Combining Scalability and Multiple Description Coding Techniques", Image and Video Communications and Processing 2003 Conf., EI'2003 , Jan. 2003. PDF format
M. Fumagalli, P. Sagetong and A. Ortega, "Estimation of Erased Data in a H.263 Coded Stream by Using Unbalanced Multiple Description Coding", IEEE Intl. Conf. on Multimedia and Expo, ICME 2003, Baltimore, Jul. 2003.
L. Vasudevan, A. Ortega and U. Mitra, "Application-specific Compression for Time-Delay Estimation in Sensor Networks", ACM SenSys , Los Angeles, Nov. 2003.
L. Vasudevan, A. Ortega and U. Mitra, "Application-optimized Quantizers for Time-delay Estimation in Sensor Networks", Workshop on Statistical Signal Processing , St. Louis, MO, Sep.-Oct. 2003.
H. Xie and Antonio Ortega, "Exploration Linear Discriminant Analysis for Transform Coding in Distributed Image Classiï¿½cation", Proc. Asilomar Conference on Signals and Systems, Nov. 2003.

2004

Alexandre Ciancio and Antonio Ortega,"Distributed Wavelet Compression Algorithm for Wireless Sensor Networks Based on Lifting", International Conference on Acoustics, Speech and Signal Processing (ICASSP'04), Montreal, May 2004.
N. Srinivasamurthy, A. Ortega and S. Narayanan,,"Enhanced Standard Compliant Distributed Speech Recognition (Aurora Encoder) using Rate Allocation", International Conference on Acoustics, Speech and Signal Processing (ICASSP'04), Montreal, May 2004.
Joaquin Lopez, Jae Hoon Kim, Antonio Ortega, and George Chen, "Block-based Illumination Compensation and Search Techniques for Multiview Video Coding," Picture Coding Symposium, San Francisco, CA, Dec. 2004.
PDF format
Huisheng Wang, Ngai-Man Cheung and Antonio Ortega, "WZS: Wyner-Ziv Scalable Predictive Video Coding", Picture Coding Symposium (PCS) 2004 , Dec. 2004. PDF format
Huisheng Wang and Antonio Ortega, "Scalable Predictive Coding by Nested Quantization with Layered Side Information", IEEE International Conference on Image Processing (ICIP) , Singapore, Oct. 2004. PDF format
L. Vasudevan, A. Ortega and U. Mitra, "Jointly Optimized Quantization and Time Delay Estimation for Sensor Networks", First Intl. Symposium on Control, Communications, and Signal Processing, Tunisia, March, 2004. PDF format
H. Chung and A. Ortega, "Efficient Memory Management Control for H.264", IEEE International Conference on Image Processing (ICIP) , Singapore, Oct. 2004.
H. Xie and Antonio Ortega, "A User Preference Information Based Kernel for SVM Active Learning in Content-based Image Retrieval", ACM SIGMM MIR, Oct. 2004.

2005

Huisheng Wang and Antonio Ortega, "Rate-Distortion Based Scheduling of Video with Multiple Decoding Paths", Image and Video Communications and Processing 2005 Conf., EI'2005 , Jan. 2005. PDF format
Alexandre Ciancio and Antonio Ortega,"Distributed Wavelet Compression Algorithm for Wireless Multihop Sensor Networks Based on Lifting", International Conference on Acoustics, Speech and Signal Processing (ICASSP'05), Philadelphia, Mar 2005.
Y. H. Kim and A. Ortega, "Quantizer Design for Source localization in Sensor Networks". IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP), Philadelphia, March 2005. PDF format
Y. H. Kim and A. Ortega, "Quantizer Design and Distributed Encoding Algorithm for Source Localization in Sensor Networks". International Conference on Information Processing in Sensor Networks (IPSN), Los Angeles, April 2005.PDF format
R. Pique-Regi, A. Ortega and S. Asgharzadeh, "Sequential Diagonal Linear Discriminant Analysis (SeqDLDA) for Microaray Classification and Gene Identification". IEEE Computational Systems Bioinformatics Conference (CSB '05), Aug. 2005. PDF format
Jae Hoon Kim, Jonathan Garcia, and Antonio Ortega, "Dependent Bit Allocation in Multiview Video Coding," in Proc. of IEEE International Conference on Image Processing (ICIP), Genoa, Italy, Sep. 2005.
PDF format
I. Chong and A. Ortega, "Hardware Testing For Error Tolerant Multimedia Compression based on Linear Transforms". In Proc. of IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems (DFT), Monterey, October 2005.PDF format
H. Chung and A. Ortega, "Analysis and testing for error tolerant motion estimation". In Proc. of IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems (DFT), Monterey, October 2005.PDF format
Ngai-Man Cheung, Huisheng Wang and Antonio Ortega, "Correlation Estimation for Distributed Source Coding under Information Exchange Constraints," IEEE International Conference on Image Processing (ICIP) , 2005. PDF format
Caimu Tang, Ngai-Man Cheung, Antonio Ortega and Cauligi S. Raghavendra, "Efficient Inter-band Prediction and Wavelet Based Compression for Hyperspectral Imagery: A Distributed Source Coding Approach," IEEE Data Compression Conference (DCC) , 2005. PDF format
Ivy H. Tseng and Antonio Ortega, "Motion Estimation at the Decoder Using Maximum Likelihood Techniques for Distributed Video Coding", Proc. Asilomar Conference on Signals and Systems, Pacific Grove, CA, Nov. 2005. PDF format

2006

I. Chong, H. Y. Cheong, and A. Ortega, "New Quality Metric for Multimedia Compression Using Faulty Hardware". In Proc. of International Workshop on Video Processing and Quality Metrics for Consumer Electronics, Arizona, January 2006.PDF format
P. Lai and A. Ortega, "Predictive Fast Motion/Disparity Search for Multiview Video Coding," in Proc. of Visual Communications and Image Processing (VCIP) 2006, San Jose, CA, Jan. 2006.
PDF format
A. Ciancio, S. Pattem, A. Ortega and B. Krishnamachari, "Energy-efficient Data Representation and Routing for Wireless Sensor Networks Based on a Distributed Wavelet Compression Algorithm". International Conference on Information Processing in Sensor Networks (IPSN'06), Nashville, TN, April 2006. PDF format
A. Ciancio and A. Ortega, "A Dynamic Programming Approach to Distortion-energy Optimization for Distributed Wavelet Compression with Applications to Data Gathering in Wireless Sensor Networks". IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP), Toulouse, France, May 2006. PDF format
Y. H. Kim and A. Ortega, "Maximum A Posteriori (MAP)-Based Algorithm for Distributed Source Localization using Quantized Acoustic Sensor Readings". IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP), Toulouse, France, May 2006. PDF format
R. Pique-Regi and A. Ortega, "Block Diagonal Linear Discriminant Analysis with Sequential Embedded Feature Selection". IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP), Toulouse, France, May 2006. PDF format
H. Y. Cheong, I. Chong and A. Ortega, "Computation Error Tolerance in Motion Estimation algorithms". In Proc. of International Conference on Image Processing (ICIP06), Atlanta, October 2006. PDF format
N.-M. Cheung and Antonio Ortega, "A model-based approach to correlation estimation in wavelet-based distributed source coding with application to hyperspectral imagery," in Proc. IEEE Int. Conf. Image Processing (ICIP) Atlanta, October 2006. PDF format
N.-M. Cheung, Huisheng Wang, Antonio Ortega, "Video compression with flexible playback order based on distributed source coding," in Proc. Visual Communications and Image Processing (VCIP) 2006. PDF format
N.-M. Cheung and Antonio Ortega, "An efficient and highly parallel hyperspectral imagery compression scheme based on distributed source coding," in Proc. Asilomar Conf. on Signals, Systems, and Computers 2006. PDF format
H. Xie, V. Andreu and Antonio Ortega, "Quantization-based Probabilistic Feature Modeling for Kernel Design in Content-based Image Retrieval", ACM SIGMM MIR, Santa Barbara, Oct. 2006.

2007

I. Chong and A. Ortega, "Dynamic Voltage Scaling Algorithm For Power Constrained Motion Estimation". In Proc. of International Conference on Acoustics, Speech, and Signal Processing (ICASSP07), Hawaii, April 2007. PDF format
P. Lai, U. Su, P. Yin, C. Gomila and A. Ortega, "Adaptive Filtering for Video Coding with Focus Change". In Proc. of International Conference on Acoustics, Speech, and Signal Processing (ICASSP07), Hawaii, April 2007. PDF format
R. Pique-Regi, E.S. Tsau, A. Ortega, R. Seeger and S. Asgharzadeh, "Wavelet Footprints and Sparse Bayesian Learning for DNA Copy Number Change Analysis". In Proc. of International Conference on Acoustics, Speech, and Signal Processing (ICASSP07), Hawaii, April 2007. PDF format
I. Chong and A. Ortega, "Power Efficient Motion Estimation Using Multiple Imprecise Metric Computation". In International Conference on Multimedia & EXPO (ICME07), Beijing, July 2007. PDF format
I. H. Tseng and A. Ortega, "Rate-distortion Analysis and Bit Allocation Strategy for Motion Estimation at the Decoder Using Maximum Likelihood Technique in Distributed Video Coding". In Proc. of IEEE International Conference on Image Processing (ICIP07), San Antonio, TX, Sep., 2007. PDF format
N.-M. Cheung and A. Ortega, "Flexible video decoding: A distributed source coding approach," in Proc. International Workshop on Multimedia Signal Processing (MMSP07) 2007. PDF format
N.-M. Cheung and A. Ortega, "Distributed Source Coding Application to Low-delay Free Viewpoint Switching in Multiview Video Compression," in Picture Coding Symposium (PCS07) 2007. PDF format
A. Ortega, "Video Coding: Predictions are Hard to Make, Especially About the Future", (invited paper) in Proceedings of 12th Image Media Processing Symposium , Shuzenji, Japan, Nov.~2007. PDF format
H. Y. Cheong and A. Ortega, "Distance Quantization Method for Fast Nearest Neighbor Search Computations with Applications to Motion Estimation", Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, November, 2007. PDF format
P. Lai, Y. Su, P. Yin, C. Gomila and A. Ortega, "Adaptive Filtering for Cross-view Prediction in Multi-view Video Coding", In Proceedings of Visual Communications and Image Processing (VCIP), 2007. PDF format
H. Y. Cheong and A. Ortega, "Motion Estimation Performance Models with application to Hardware Error Tolerance", In Proceedings of Visual Communications and Image Processing (VCIP), 2007. PDF format

2008

K.H. Lee, A. Ortega, A. Mohammad Nejad and I. Ershaghi, "A Method for Characterization of Flow Units between Injection-Production Wells Using Performance Data". SPE Western Regional and Pacific Section AAPG Joint Meeting, March 2008. PDF format
G. Shen and A. Ortega, "Optimized Distributed 2D Transforms for Irregularly Sampled Sensor Network Grids Using Wavelet Lifting". IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP'08), Las Vegas, NV, April 2008. PDF format
G. Shen and A. Ortega, "Joint Routing and 2D Transform Optimization for Irregular Sensor Network Grids Using Wavelet Lifting". International Conference on Information Processing in Sensor Networks (IPSN'08), St. Louis, MO, April 2008. PDF format
R. Pique-Regi, J. Monso-Varona, A. Ortega and S. Asgharzadeh, "Bayesian Detection of Recurrent Copy Number Alterations Across Multiple Array Samples". IEEE International Conference on Genomic Signal Processing and Statistics (GENSiPs'08), June 2008. PDF format
G. Shen and A. Ortega, "Compact Image Representation Using Wavelet Lifting Along Arbitrary Trees". IEEE International Conference on Image Processing (ICIP'08), San Diego, CA, Oct., 2008. PDF format
J.H. Kim, A. Ortega, P. Yin, P. Pandit and C. Gomila, "Motion Compensation Based on Implicit Block Segmentation". IEEE International Conference on Image Processing (ICIP'08), San Diego, CA, Oct., 2008. PDF format
P. Lai, A. Ortega, P. Pandit, P. Yin and C. Gomila, "Adaptive Reference Filtering for Bidirectional Disparity Compensation with Focus Mismatches". IEEE International Conference on Image Processing (ICIP'08), San Diego, CA, Oct., 2008. PDF format
N.-M. Cheung and A. Ortega, "Compression Algorithms for Flexible Video Decoding", In Proceedings of Visual Communications and Image Processing (VCIP), 2008. PDF format
P. Lai, A. Ortega, P. Pandit, P. Yin and C. Gomila, "Focus Mismatches in Multiview Systems and Efficient Adaptive Reference Filtering for Multiview Video Coding", In Proceedings of Visual Communications and Image Processing (VCIP), 2008. PDF format
G. Cheung and A. Ortega, "Fast H.264 Mode Selection Using Depth Information for Distributed Game Viewing", In Proceedings of Visual Communications and Image Processing (VCIP), 2008. PDF format
M. Breuer, K.M. Chugg, S. Gupta and A. Ortega, "Error tolerance: Why and How to use Slightly Defective Digital Systems", 2008 IEEE Workshop on Silicon Errors in Logic - System Effects, Austin, TX, March 2008. PDF format
S. Tanji, K. Shinoda, S. Furui and A. Ortega, "Improvement of Eigenvoice-based Speaker Adaptation by Parameter Space Clustering", Interspeech 2008, Brisbane, Australia, Sep. 2008.
G. Cheung, W.-t. Tan, B. Shen and A. Ortega, "ECHO: A Community Video Streaming System with Interactive Visual Overlays", Multimedia Computing and Networking (MMCN'08), San Jose, CA, Jan. 2008.
G. Cheung, A. Ortega and T. Sakamoto, "Coding Structure Optimization for Interactive Multiview Streaming in Virtual World Observation", MMSP 2008, Cairns, Australia, 2008.

2009

Z. Fan and A. Ortega, "Overlapped Tiling for Fast Random Access of Low Dimensional Data from High Dimensional Datasets", In Proceedings of Visual Communications and Image Processing (VCIP), 2009. PDF format
P. Lai, A. Ortega, C.C. Dorea, P. Yin and C. Gomila, "Improving View Rendering Quality and Coding Efficiency by Suppressing Compression Artifacts in Depth-image Coding", In Proceedings of Visual Communications and Image Processing (VCIP), 2009. PDF format
K.H. Lee, A. Ortega, A. Mohammad Nejad, N. Jafroodi and I. Ershaghi, "A Novel Method for Mapping Fractures and High Permeability Channels in Waterfloods Using Injection and Production Rates". In Proceedings of SPE Western Regional and Pacific Section AAPG Joint Meeting, March 2009. PDF format
Z. Fan and A. Ortega, "Overlapped tiling for fast random access of 3-D datasets". In Proceedings of Data Compression Conference (DCC), March 2009.
S. Pattem, G. Shen, Y. Chen, B. Krishnamachari and A. Ortega, "SenZip: An Architecture for Distributed En-route Compression in Wireless Sensor Networks". In Workshop on Sensor Networks for Earth and Space Science Applications (ESSA'09), San Francisco, April 2009. PDF format
G. Shen, S.K. Narang and A. Ortega, "Adaptive Distributed Transforms for Irregularly Sampled Wireless Sensor Networks". In Proceedings of IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP'09), Taipei, April 2009. PDF format
G. Shen, S. Pattem and A. Ortega, "Energy-efficient Graph-based Wavelets for Distributed Coding in Wireless Sensor Networks". In Proceedings of IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP'09), Taipei, April 2009. PDF format
L. Sheng, R. Pique-Regi, S. Asgharzadeh and A. Ortega, "Microarray Classification Using Block Diagonal Linear Discriminant Analysis with Embedded Feature Selection". In Proceedings of IEEE International Conference on Acoustic, Speech and Signal Processing (ICASSP'09), Taipei, April 2009.
G. Shen and A. Ortega, "Tree-Based Wavelets for Image Coding: Orthogonalization and Tree Selection". In Proceedings of 2009 Picture Coding Symposium (PCS'09), Chicago, May 2009. PDF format
P. Tarrio, G. Valenzise, G. Shen and A. Ortega, "Distributed Network Configuration for Wavelet-based Compression in Sensor Networks". In Proceedings of Third International Conference on Geosensor Networks (GSN'09), Oxford, July 2009. PDF format
S. Lee, S. Pattem, M. Sathiamoorthy,B. Krishnamachari, and A. Ortega "Spatially-Localized Compressed Sensing and Routing in Multi-hop Sensor Networks". In Proceedings of Third International Conference on Geosensor Networks (GSN'09), Oxford, July 2009. PDF format
A. Sanchez, G. Shen and A. Ortega, "Edge-preserving Depth-map Coding Using Graph-based Wavelets". In Proceedings of Asilomar 2009, Pacific Grove, October 2009. PDF format
W.-S. Kim, A. Ortega, P. Lai, D. Tian, and C. Gomila, “Depth map distortion analysis for view rendering and depth coding,” in Proc. of IEEE Int. Conf. Image Proc. (ICIP ‘09), Cairo, Egypt, Nov. 2009. PDF format

2010

W.-S. Kim, A. Ortega, P. Lai, D. Tian, and C. Gomila, “Depth map coding with distortion estimation of rendered view,” in Proc. of SPIE Visual Information Processing and Communication (VIPC ‘10), San Jose, CA, USA, Jan. 2010. PDF format
Y. Lin and A. Ortega, "Reconstruction algorithm for high contrast velocity travel time tomography". In Proceedings of the 2010 IEEE International Acoustics Speech and Signal Processing Conference(ICASSP 2010), Dallas, March 2010. PDF format
Y. Lin and A. Ortega, and Nejad, A. and Ershaghi, I. "Waterflood Tomography: Mapping High Contrast Permeability Structures Using Injection/Production Data". In Proceedings of the 2010 SPE Western Regional Meeting(SPE WRM 2010), Anaheim, May 2010. PDF format
G. Shen, W.-S. Kim, A. Ortega, J. Lee, and H. Wey, "Edge-aware intra prediction for depth-map coding". in Proc. of IEEE Intl. Conf. Image Proc. (ICIP ‘10), Hong Kong, Sep. 2010. PDF format
Y. Lin, and A. Ortega, and A.G. Dimakis, "Sparse recovery for discrete tomography". In Proceedings of the 2010 IEEE International Conference on Image Processing (ICIP), 2010, Hong Kong, October 2010. PDF format
W.-S. Kim, A. Ortega, J. Lee, and H. Wey, "3-D video coding using depth transition data," in Proc. of 28th Picture Coding Symposium (PCS ‘10), Nagoya, Japan, Dec. 2010. PDF format
G. Shen, W.-S. Kim, S. K. Narang, A. Ortega, J. Lee, and H. Wey, "Edge-adaptive transforms for efficient depth-map coding," in Proc. of 28th Picture Coding Symposium (PCS ‘10), Nagoya, Japan, Dec. 2010. PDF format
S. Lee and A. Ortega "Joint Optimization of Transport Cost and Reconstruction for Spatially-Localized Compressed Sensing in Multi-Hop Sensor Networks ". In Proceedings of APSIPA Annual Summit and Conference (APSIPA ASC 2010), Singapore, December 2010. PDF format

2011

E. Martinez-Enriquez and A. Ortega, "Lifting Transforms on Graphs for Video Coding", Proc. Data Compression Conference (DCC), 2011, March 2011.
S. K. Narang and A. Ortega, "Downsampling Graphs using Spectral Theory", ICASSP 2011, Prague, Czech Republic, May 2011.
S. McPherson and A. Ortega, "Detecting Low-Rate Periodic Events in Internet Traffic using Renewal Theory", ICASSP 2011, Prague, Czech Republic, May 2011.
P. Carballeira, J. Cabrera, A. Ortega, F. Jaureguizar and N. Garcia, "A Graph-based approach for latency modeling and optimization in multiview video coding", 3DTV Conference 2011, Antalya, Turkey, May 2011.
W.-S. Kim, A. Ortega, J. Lee, and H. Wey, "3-D video quality improvement using depth transition data", In Proc. IEEE Int. Workshop on Hot Topics in 3D, ICME Hot 3D 2011, Barcelona, Spain, Jul. 2011.
X. Xiu, G. Cheung, A. Ortega and J. Liang, "Optimizing Frame Structure for Interactive Multiview Video Streaming with View Synthesis", ICME Hot 3D Workshop, Barcelona, Spain, July 2011.
L. Amati, G. Valenzise, A. Ortega and S. Tubaro,"Dependent video coding using a tree representation of pixel dependencies", SPIE Conf., San Diego, CA, Aug. 2011.
J. Tokayer, A. Ortega and D. Huang, "Sparsity-based Retinal Layer Segmentation of Optical Coherence Tomography Images", ICIP 2011, Brussels, Belgium, Sept. 2011.
G. Cheung, J. Ishida, A. Kubota and A. Ortega, "Sparse Transform Domain Representation of Depth Maps Using Iterative Quadratic Programs", ICIP 2011, Brussels, Belgium, Sept. 2011.
Z. Fan and A. Ortega, "Mapping Data on a Rotated Grid in High-dimensions for Lossless Compression", ICIP 2011, Brussels, Belgium, Sept. 2011.
J. Perez Trufero, S. K. Narang and A. Ortega, "Distributed Transforms for Efficient Data Gathering in Arbitrary Networks", ICIP 2011, Brussels, Belgium, Sept. 2011.
E. Martinez-Enriquez, F. Diaz-de-Maria and A. Ortega, "Video Encoder Based on Lifting Transforms on Graphs", ICIP 2011, Brussels, Belgium, Sept. 2011.
L. Sheng and A. Ortega, "Graph Based Partially Supervised Learning of Documents", in IEEE Workshop on Machine Learning Signal Processing, Beijing, China, Sept. 2011.
G. Cheung, W.-S. Kim, A. Ortega, J. Ishida and A. Kubota, "Depth Map Coding using Graph Based Transform and Transform Domain Sparsification", Proc. of MMSP 2011, Hangzhou, China, Oct. 2011.
Z. Fan and A. Ortega, "A Spectral Graph Theory Approach for Data Re-Mapping", Proc. of APSIPA ASC 2011, Xi'an, China, Oct. 2011.
Y. Lin, A. Ortega and A. G. Dimakis, "Level estimation for sparse reconstruction in discrete tomography", Proc. Asilomar Conference on Signals and Systems, Pacific Grove, CA, USA, Nov. 2011.

2012

Y. Lin, A. Ortega, T. A. Tafti, and I. Ershaghi, "Detecting Shale Discontinuity between Different Layers Using Waterflood Tomography", SPE Western North American Regional Meeting, Bakersfield, CA, March 2012.
S. K. Narang and A. Ortega, "Multi-dimensional separable critically sampled wavelet filterbanks on arbitrary graphs", ICASSP 2012, Kyoto, Japan, March 2012.
W.-S. Kim, S. K. Narang and A. Ortega, "Graph based transforms for depth video coding", ICASSP 2012, Kyoto, Japan, March 2012.
L. Sheng and A. Ortega, "Pixel prediction by context based regression", ICASSP 2012, Kyoto, Japan, March 2012.
G. Valenzise, G. Cheung, R. Galvao, M. Cagnazzo, B. Pesquet-Popescu and A. Ortega, "Motion Prediction of Depth Video for Depth-Image-Based Rendering Using Don't Care Regions", PCS 2012, Krakow, Poland, May 2012.
K. Shinoda, Y. Murakami, M. Yamaguchi and A. Ortega, "An Efficient Compression Method for One-Shot Multispectral Camera", PCS 2012, Krakow, Poland, May 2012.
S. K. Narang, Y. H. Chao and A. Ortega, "Graph-wavelet filterbanks for edge-aware image processing", IEEE Workshop on Statistical Signal Processing, (SSP'12), Ann Arbor, MI, Aug. 2012.
J. Ishida, G. Cheung, A. Kubota and A. Ortega, "Quality-optimized Encoding of JPEG Images using Transform Domain Sparsification", Proceedings of MMSP 2012, Banff, Canada, Sept. 2012.
A. T. Gjika, M. Levorato, A. Ortega and U. Mitra, "Online Learning in Wireless Networks via Directed Graph Lifting Transform", in Proc. of 50th Annual Allerton Conference on Communication, Control, and Computing, 2012.
M. Levorato, S. K. Narang, U. Mitra and A. Ortega, "Reduced Dimension Policy Iteration for Wireless Network Control via Multiscale Analysis", GlobeCom 2012, Anaheim, CA, Dec. 2012.
S. Lee and A. Ortega "Adaptive Compressed Sensing for Depthmap Compression Using Graph-based Transform". In Proceedings of International Conference on Image Processing (ICIP'12), Orlando, October, 2012 PDF format

2013

S.K. Narang, A. Gadde and A. Ortega "Signal Processing Techniques for Interpolation of Graph Structured Data", ICASSP 2013, Vancouver, Canada, 2013.
A. Gadde, S.K. Narang and A. Ortega "Bilateral Filter: Graph Spectral Interpretation and Extensions", ICIP 2013, Melbourne, Australia, 2013 (Top 10% of all accepted manuscripts).
S.K. Narang, A. Gadde, E. Sanou and A. Ortega "Localized Iterative Methods for Interpolation of Graph Structured Data", GlobalSIP 2013, Austin, USA, 2013.

2014

A. Anis, A. Gadde and A. Ortega "Towards a Sampling Theorem for Signals on Arbitrary Graphs", ICASSP 2014, Florence, Italy, 2014 (Best student paper award).
H.E. Egilmez and A. Ortega "Spectral Anomaly Detection using Graph-based Filtering for Wireless Sensor Networks", ICASSP 2014, Florence, Italy, 2014.
A. Gadde, A. Anis and A. Ortega "Active Semi-Supervised Learning Using Sampling Theory for Graph Signals", KDD 2014, New York, USA, 2014 (Matlab Code).

2015

A. Gadde and A. Ortega "A Probabilistic Interpretation of Sampling Theory of Graph Signals", ICASSP 2015, Brisbane, Australia, 2015.

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