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In this paper, a quantization scheme based on hard-decision partition and adaptive reconstruction levels is proposed for High Efficiency Video Coding (HEVC), the video coding standard currently under development, which has demonstrated approximately 40% bit saving compared to H.264/AVC. For each video frame, the residual signal after motion estimation is transformed and then quantized by a hard-decision...
Aiming at improving compression performance, we consider mode selection for Wyner-Ziv video compression where a block of pixels in a video frame, after discrete cosine transform (DCT), can be either encoded by using H.264 Intra mode or Wyner-Ziv (WZ) mode with side information processed at the decoder. Under the constraint of encoding complexity, an iterative algorithm is proposed to find the best...
In this paper we investigate the performance of linear interactive encoding and decoding (IED) for lossless source coding with decoder only side information. Assume that the source alphabet chi is a finite field and that the side information alphabet is finite. It is shown that there exist universal linear IED schemes which are asymptotically optimal for any stationary, ergodic source-side information...
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