Wavelets on Trees
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Contents
General Information
- This website provides source code for wavelet transforms on trees, with applications to:
- Distributed data compression for wireless sensor networks
- Image coding
- Publications describing these transforms can be found at:
- Distributed Compression for Sensor Networks web page for transforms used in WSN
- Godwin Shen's web page for transforms used in image coding (and WSN)
- This page is maintained by Godwin Shen
- Email: godwinsh@usc.edu
Source Code
- Comments, questions or concerns should be directed to: godwinsh@usc.edu
- MATLAB source code for wavelets on trees in WSN
- Last Updated On: September 24, 2009
- Fixed a bug in cost computations (9/24/09)
- New cost computations added (8/20/09)
- This code provides implementations of the transforms described in the related publications shown below
- The main files to start with are Example_LossyCoding.m and Example_LosslessCoding.m
- Last Updated On: September 24, 2009
Related Publications
- G. Shen and A. Ortega, "Transform-based Distributed Data Gathering". Submitted to IEEE Transactions on Signal Processing. arXiv:0909.5177v1
- G. Shen, S. Pattem and A. Ortega, "Energy-efficient Graph-based Wavelets for Distributed Coding in Wireless Sensor Networks". In Proc. of 2009 IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP'09), Taipei, April 2009. PDF format
- G. Shen, S. Narang and A. Ortega, "Adaptive Distributed Transforms for Irregularly Sampled Wireless Sensor Networks". In Proc. of 2009 IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP'09), Taipei, April 2009. PDF format
- G. Shen and A. Ortega, "Optimized Distributed 2D Transforms for Irregularly Sampled Sensor Network Grids Using Wavelet Lifting". In Proc. of 2008 IEEE Intl. Conf. on Acoustics, Speech and Signal Processing (ICASSP'08), Las Vegas, April 2008. PDF format
Related Links
Acknowledgements
- This work was supported in part by NASA under grant AIST-05-0081
