Patent
Efficient motion vector coding for video compression
Chih-Lung (Bruce) Lin,Ming-Chieh Lee +1 more
- 30 Jun 2004
126
TL;DR: In this article, the x and y components of motion vectors are jointly coded by assigning a single variable length code corresponding to the pair of components, rather than a separate code for each component.
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Abstract: Video coding efficiency is improved by jointly coding the x and y components of motion vectors with a single variable length code. The motion vector components for a block of pixels are predicted based on motion vectors of neighboring blocks of pixels. The predicted x and y components are then jointly coded by assigning a single variable length code corresponding to the pair of components, rather than a separate code for each component. If the x and y components do not have a corresponding entry in the coding table, they are coded with an escape code followed by fixed length codes.
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Citations
Patent
Method and apparatus for encoding video, and method and apparatus for decoding video
Min Jung-Hye,Woo-Jin Han,Il-Koo Kim +2 more
- 13 Aug 2010
Abstract: Disclosed are a method and a apparatus for encoding a video, and a method and apparatus for decoding a video, in which neighboring pixels used to perform intra prediction on a current block to be encoded are filtered and intra prediction is performed by using the filtered neighboring pixels.
327
Patent
Moving picture encoding method and decoding method
Yoshinori Suzuki
- 11 Aug 2011
TL;DR: In this article, a moving picture decoding method was proposed to generate a predicted image using information on motion vectors and information on reference images, the method having multiple prediction modes including a mode without motion vector decoding, including: a step of selecting a frame(s) to be referenced to in the prediction of each prediction direction in the predicted mode from among multiple candidate reference frames.
180
Patent
Video content understanding through real time video motion analysis
Tong Zhang,Yong Wang,Daniel R. Tretter +2 more
- 25 Oct 2005
TL;DR: In this article, the authors describe methods and integrated systems for camera motion analysis and moving object analysis and methods of extracting semantics mainly from camera motion parameters in videos and video segments without shot changes.
166
Patent
Motion vector coding method and motion vector decoding method
Satoshi Kondo,Shinya Kadono,Makoto Hagai,Kiyofumi Abe +3 more
- 08 Jan 2003
TL;DR: In this article, a motion vector coding unit 117 executes processing including a neighboring block specification step (S100), a judgment step (Steps S102, S104) of judging whether or not the neighboring block has been coded using a motion vectors of another block, and a prediction step(S106, S108) of deriving a predictive motion vector of the current block using the motion vector calculated from the other block as a motionvector of the neighbor block.
161
Patent
Computing collocated macroblock information for direct mode macroblocks
Yongjun Wu,William Chen,Weidong Zhao +2 more
- 30 Jun 2007
TL;DR: In this paper, video decoding innovations for multithreading implementations and graphics processor unit (GPU) implementations are described, where a decoder uses innovations in the areas of layered data structures, picture extent discovery, a picture command queue, and/or task scheduling for multi-reading.
159
References
Cubic convolution interpolation for digital image processing
TL;DR: It can be shown that the order of accuracy of the cubic convolution method is between that of linear interpolation and that of cubic splines.
•Book
JPEG: Still Image Data Compression Standard
William B. Pennebaker,Joan L. Mitchell +1 more
- 31 Dec 1992
TL;DR: This chapter discusses JPEG Syntax and Data Organization, the history of JPEG, and some of the aspects of the Human Visual Systems that make up JPEG.
3.3K
MPEG: a video compression standard for multimedia applications
TL;DR: Design of the MPEG algorithm presents a difficult challenge since quality requirements demand high compression that cannot be achieved with only intraframe coding, and the algorithm’s random access requirement is best satisfied with pure intraframes coding.
2.5K
Motion-compensating prediction with fractional-pel accuracy
TL;DR: A three-state technique for reliable displacement estimation with fractional-pel accuracy is introduced, based on phase correlation, and for motion-compensation with block size of 16 pels*16 pels, 1/4- Pel accuracy appears to be sufficient for broadcast TV signals, whereas for videophone signals,1/2-pel Accuracy is desirable.
353
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