Image analysis – Image compression or coding – Including details of decompression
Patent
1995-04-18
1999-01-26
Couso, Yon
Image analysis
Image compression or coding
Including details of decompression
382250, G06K 936
Patent
active
058646370
ABSTRACT:
A video system examines the transform domain content of various spatially related blocks in a compressed video bitstream to determine whether predetermined types of similarities exist between multiple blocks. When certain selected similarities are found, the video system spatially combines the blocks in a predetermined manner. In some embodiments, DCT coefficients of a plurality of blocks are averaged to form one averaged block and the averaged block is inverse discrete cosine transformed. The averaged and IDCT transformed block is written to the display at the position of each of the averaged blocks. In some embodiments, a representative block of a plurality of DCT coefficient blocks is selected and inverse discrete cosine transformed. The selected and IDCT transformed block is written to the display at the position of each of the plurality of blocks.
REFERENCES:
patent: 4797944 (1989-01-01), Tanaka
patent: 5144424 (1992-09-01), Savatier
patent: 5150210 (1992-09-01), Hoshi et al.
patent: 5164828 (1992-11-01), Tahara et al.
patent: 5227878 (1993-07-01), Puri et al.
patent: 5241395 (1993-08-01), Chen
patent: 5247363 (1993-09-01), Sun et al.
patent: 5315670 (1994-05-01), Shapiro
patent: 5333212 (1994-07-01), Ligtenberg
patent: 5347308 (1994-09-01), Wai
patent: 5357282 (1994-10-01), Lee
patent: 5371547 (1994-12-01), Siracusa et al.
patent: 5371611 (1994-12-01), Kato et al.
patent: 5386232 (1995-01-01), Golin et al.
patent: 5410553 (1995-04-01), Choon
patent: 5450599 (1995-09-01), Horvath et al.
patent: 5452104 (1995-09-01), Lee
patent: 5467131 (1995-11-01), Bhaskaran et al.
patent: 5481364 (1996-01-01), Ito
patent: 5489944 (1996-02-01), Jo
patent: 5490130 (1996-02-01), Akagiri
patent: 5502493 (1996-03-01), Meyer
patent: 5510840 (1996-04-01), Yonemitsu et al.
patent: 5523847 (1996-06-01), Feig et al.
patent: 5543846 (1996-08-01), Yagasaki
patent: 5552832 (1996-09-01), Astle
patent: 5559557 (1996-09-01), Kato
patent: 5625714 (1997-04-01), Fukuda
Dr. Richard Baker, "Standards Dominate Videoconferencing Implementations", Computer Design, Dec. 1994, pp. 66-70.
Stephen Ohr, "Digital Video Spearheads TV and Videoconferencing Applications", Computer Design, Dec. 1994, pp. 59-64.
Lawrence A. Rowe, et al., "MPEG Video in Software: Representation, Transmission, and Playback", High Speed Networking and Multimedia Computing, Symp. on Elec. Imaging Sci. & Tech., San Jose, CA, Feb., 1994, 1994, pp. 1-11.
Peng H. Ang, et al., "Video Compression Makes Big Gains", IEEE Spectrum, Oct. 1991, pp. 16-19.
Andy C. Hung, et al, "A Comparison of Fast Inverse Discrete Cosine Transform Algorithms", Multimedia Systems, .COPYRGT.1994, pp. 204-217.
P1180/D1, "Draft Standard Specification for the Implementations of 8.times.8 Inverse Discrete Cosine Transform", May 29, 1990, pp. 1-9.
ISO/IEC 11172-1, Information Technology-Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1,5 Mbit/s--Part 1: Systems, Aug. 1, 1993, pp. i-vi, 1-53.
ISO/IEC 11172-2, Information Technology-Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1,5 Mbit/s--Part 1: Video, Aug. 1, 1993, pp. i-ix, 1-112.
ISO/IEC 11172-3, Information Technology-Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1,5 Mbit/s--Part 1: Audio, Aug. 1, 1993, pp. i-vi, 1-150.
Kevin L. Gong, et al., "Parallel MPEG-1 Video Encoding", Report, University of California, Berkeley, Computer Science Division, 1994, pp. 1-14.
Liu Yi
Strongin Geoffrey S.
Tucker Michael R.
Advanced Micro Devices , Inc.
Couso Yon
Koestner Ken J.
LandOfFree
Method and apparatus for improved video decompression by selecti does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for improved video decompression by selecti, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for improved video decompression by selecti will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1456135