Fine granularity scalability using bit plane coding of...

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

Reexamination Certificate

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C382S281000, C348S398100

Reexamination Certificate

active

06980597

ABSTRACT:
A system for efficient bit plane coding of transform coefficient data, such as DCT data used in a video coding system. Decimal values for the transform coefficients are converted to binary values, where each bit occupies a corresponding bit plane, from the most significant bit to the least significant bit. One bit from each coefficient is provided in a common bit plane. A one-bit flag or codeword is used for coding one or more initial all-zero bit planes, while another one-bit flag is used for designating the first subsequent non-all-zero plane. For the first non-all-zero plane, a reduced coding table is used to provide codewords that follow the one-bit flag.

REFERENCES:
patent: 5029122 (1991-07-01), Uetani
patent: 5321776 (1994-06-01), Shapiro
patent: 5717394 (1998-02-01), Schwartz et al.
patent: 5768535 (1998-06-01), Chaddha et al.
patent: EP 0855838 (1998-07-01), None
patent: 0 855 838 (1998-07-01), None
Fan Ling; Weiping Li; Hongqiao Sun: “Bitplane coding of DCT coefficients for image and video compression,” Proceedings of the SPIE, vol. 3653, Jan. 27, 1999, pp. 500-508.
Fan Ling; Weiping Li: “Dimensional Adaptive Arithmetic Coding for Image Compression,” Proceedings of the 1998 IEEE International Symposium on Circuits and Systems, ‘Online’, vol. 4, Jun. 3, 1998, pp. 13-16.
ISO/IEC JTC1/SC29/WG11, MPEG98/M4204, Dec., 1998.

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