Video data encoder and decoder

Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal

Reexamination Certificate

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Details

C375S240160, C375S240120, C375S240000, C382S232000, C382S240000, C382S246000

Reexamination Certificate

active

06895051

ABSTRACT:
This invention relates to compression of prediction error in motion compensated video coding schemes. Prediction frame and motion vectors are used to extract useful information about the properties of the prediction error signal, e.g. its location, directionality, etc. This information does not need to be transmitted because the decoder of the proposed system includes means to extract this information. Information extracted by the encoder and decoder is used to adapt prediction error coding scheme which gives substantial bitrate reductions.

REFERENCES:
patent: 5151784 (1992-09-01), Lavagetto et al.
patent: 5260782 (1993-11-01), Hui
patent: 5432555 (1995-07-01), Park
patent: 5500689 (1996-03-01), Lam
patent: 6084908 (2000-07-01), Chiang et al.
patent: 6272178 (2001-08-01), Nieweglowski et al.
patent: 0239076 (1987-09-01), None
patent: 0531041 (1993-03-01), None
patent: 0537958 (1993-04-01), None
patent: 0541302 (1993-05-01), None
patent: 0561593 (1993-09-01), None
“Advances In Picture Coding”, Mussmann et al., Proc. Of the IEEE, vol. 73, No. 4, pp. 523-548, 4/95.
“Motion Adaptive Vector Quantization For Video Coding”, Moresco et al., Proc of 1992 European Conference on Signalling Processing EUSIPCO, pp. 1357-1360.
“Low Rate Sequence Image Coding Via Vector Quantization”, Chen et al., Signal Processing, Elsevier, vol. 26, 1992.
“Robust Motion Estimation and Multistage Vector Quantization For Sequence Compression”, Zhang et al., IEEE International Conference on image processing ICIP 1994, vol. 2.
“Rate Distortion Analysis Of Variable Block Size VQ-Based Motion Compensated Video Codecs”, S. Liu, IEEE International Conference on Acoustics, Speech and Signal Processing ICASSP'94, vol. 5.
“Fundamentals Of Digital Image Processing”, M.K. Jain, Prentice Hall International 1989, pp. 347-357.
PCT International Search Report.

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