Open AccessProceedings Article
Wavelet-based distributed source coding of video
James E. Fowler,Marco Tagliasacchi,Beatrice Pesquet-Popescu +2 more
- 01 Sep 2005
- pp 1-4
TL;DR: Experimental results indicate that, due to improved intra frame coding, the proposed wavelet-based algorithm significantly outperforms a similar technique constructed with JPEG-like intraframe coding.
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Abstract: A wavelet-based video coder built on the principles of distributed source coding is described. The encoder employs a syndrome-based encoding strategy for intercoded coefficients while other coefficients are intracoded using an embedded wavelet-based coder designed for the coding of arbitrarily shaped image objects. The decoder uses a reference frame in the domain of a redundant wavelet transform to search for blocks matching the syndrome received from the encoder in order to decode intercoded coefficients. Experimental results indicate that, due to improved intraframe coding, the proposed wavelet-based algorithm significantly outperforms a similar technique constructed with JPEG-like intraframe coding.
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Citations
Patent
Bitstream Switching in Multiple Bit-Rate Video Streaming Environments
Yan Lu,Feng Wu,Wen Sun,Shipeng Li +3 more
- 26 Jul 2006
TL;DR: In this article, a switching frame from a respective side bitstream is transmitted to a decoder to transition streaming from a first of the respective ones of the bitstreams to a second of their respective ones.
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Patent
Wyner-Ziv and Wavelet Video Coding
Yan Lu,Xun Guo,Feng Wu,Shipeng Li +3 more
- 04 Aug 2006
TL;DR: In this article, Wyner-Ziv frames from multiple frames of source video content are zero-tree entropy encoded to generate encoded WynerZiv content, which is communicated to a decoder for decoding to generate reconstructed Wyner Ziv frames for presentation to a user.
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Side information creation for efficient Wyner-Ziv video coding: Classifying and reviewing
TL;DR: This paper has the main objective to review and evaluate the available side information methods after proposing a classification taxonomy to guide this review, allowing to achieve more solid conclusions and better identify the next relevant research challenges.
Patent
Wyner-Ziv coding with multiple side information
Yan Lu,Feng Wu,Mei Guo,Shipeng Li +3 more
- 12 Mar 2008
TL;DR: In this article, a Wyner-Ziv coding scheme jointly utilizes multiple side information at the decoder, and a new probability model is introduced based on an extended turbo decoding trellis.
22
Patent
Request bits estimation for a wyner-ziv codec
Yan Lu,Mei Guo,Feng Wu,Shipeng Li +3 more
- 02 Oct 2006
TL;DR: In this article, the Wyner-Ziv decoder is used to estimate the number of parity bits to send to the decoder for reconstruction and presentation of the reconstructed frame to a user.
12
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The rate-distortion function for source coding with side information at the decoder
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TL;DR: Comparison of shape-adaptive wavelet coding with other coding schemes for arbitrarily shaped visual objects shows that shape- Adaptive Wavelet coding always achieves better coding efficiency than other schemes.
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