Method and apparatus for encoding/decoding image data

Details Method and apparatus for encoding/decoding image data Method and apparatus for encoding/decoding image data

1991-05-24

1993-05-18

Razavi, Michael T.

Image analysis

Histogram processing

For setting a threshold

382 27, 382 41, 382 49, G06K 900

Patent

active

052127427

ABSTRACT:
An apparatus and method for processing video data for compression/decompression in real-time. The apparatus comprises a plurality of compute modules, in a preferred embodiment, for a total of four compute modules coupled in parallel. Each of the compute modules has a processor, dual port memory, scratch-pad memory, and an arbitration mechanism. A first bus couples the compute modules and a host processor. Lastly, the device comprises a shared memory which is coupled to the host processor and to the compute modules with a second bus. The method handles assigning portions of the image for each of the processors to operate upon.

REFERENCES:
patent: 4174514 (1979-11-01), Sternberg
patent: 4484349 (1984-11-01), McCubbrey
patent: 4665556 (1987-05-01), Fukushima et al.
patent: 4684997 (1987-08-01), Romzo et al.
patent: 5070531 (1991-12-01), Schuerman et al.
E. J. Delp, O. R. Mitchell, "Image Compression Using Block Truncation Coding," IEEE Transactions on Communications, vol. COM-27, No. 9, Sep. 1979, pp. 1335-1342.
G. Campbell, T. A. Defanti, et al., "Two Bit/Pixel Full Color Encoding," Proceedings of SIGGRAPH '86, vol. 20, No. 4, Aug. 18-22, 1986, pp. 215-223.
T. Murakami, K. Asai, et al., "Scene Adaptive Vector Quantization for Image Coding," Globecom '88, Nov. 28-Dec. 1, 1988, pp. 1068.varies.1072.
J. B. O'Neal, Jr., "Predictive Quantizing Systems for the Transmission of Television Signals," Bell System Technical Journal, May/Jun. 1966, pp. 689-721.
R. Plompen, Y. Hatori, et al., "Motion Video Coding in CCITT SG VS--The Video Source Coding," Globecom '88, Nov. 28-Dec. 1, 1988, pp. 0997-1004.
N. S. Jayant and P. Noll, Digital Coding of Waveforms, Prentice-Hall Signal Processing Series, p. 58.
A. N. Netravali and B. G. Haskell, Digital Pictures: Representation and Compression, Plenum Publishing Corp., 1988, pp. 31-34, 389-392, and 415-416.
A. N. Netravali and J. O. Limb, "Picture Coding: A Review," Proceedings of the IEEE, vol. 68, No. 3, Mar. 1980, pp. 366-406.
C. Chen, "Adaptive Transform Coding Via Quadtree-Based Variable Blocksize DCT," ICASSP '89, IEEE, May 23-26, 1989, pp. 1854-1857.
Specialists Group on Coding for Visual Telephony, Draft Revision of Recommendation H.261, Document No. 584, Nov. 10, 1989.
International Organisation for Standardization, MPEG Video Simulation Model Three (SM3), Draft #1, A Koster, PTT Research, 1990.

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