Patent
Video compression method
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TLDR
In this article, a method of compressing video data having at least one frame having at most one block and each block having an array of pixels is provided, which transforms the pixels of each block into coefficients and creates an optimal transmission order of the coefficients.Abstract:
A method of compressing video data having at least one frame having at least one block and each block having an array of pixels is provided. The method transforms the pixels of each block into coefficients and creates an optimal transmission order of the coefficients. The method also optimizes the speed of processing compressed video data by partitioning the data bitstream and coding each partition independently. The method also predicts fractional pixel motion by selecting an interpolation method for each given plurality or block of pixels depending upon at least one metric related to each given block and varies the method from block to block. The method also enhances error recovery for a current frame using a frame prior to the frame immediately before the current frame as the only reference frame for lessening quality loss during data transmission. Enhanced motion vector coding is also provided.read more
Citations
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References
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Journal ArticleDOI
New fast algorithms for the estimation of block motion vectors
Bede Liu,Andre Zaccarin +1 more
TL;DR: Two algorithms for block motion estimation that produce performance similar to that of exhaustive search but with computation reduced by a factor of 8 or 16 are presented.
Journal ArticleDOI
Long-term memory motion-compensated prediction
TL;DR: Simulation results are obtained by integrating long-term memory prediction into an H.263 codec and Mathematical inequalities are used to speed up motion estimation while achieving full prediction gain.
Journal ArticleDOI
Rate-distortion optimized mode selection for very low bit rate video coding and the emerging H.263 standard
TL;DR: An efficient solution is proposed in which the optimum combination of macroblock modes and the associated mode parameters are jointly selected so as to minimize the overall distortion for a given bit-rate budget, and is successfully applied to the emerging H.263 video coding standard.
Patent
Apparatus and method for adaptively compressing successive blocks of digital video
Edward A. Krause,Paik Woo H +1 more
TL;DR: In this article, a set of pixel data presented in a field format is compressed to provide a first compressed video signal and then the same set of pixels are compressed in a frame format and used to produce a second compressed signal.
Patent
Motion estimation and compensation of video object planes for interlaced digital video
TL;DR: In this article, a motion estimation and compensation technique for interlaced digital video such as video object planes (VOPs) is provided, where predictor motion vectors for use in differentially encoding a current field coded macroblock are obtained using the median of motion vectors of surrounding blocks or macroblocks.