Image analysis – Image compression or coding – Predictive coding
Patent
1997-10-07
2000-06-20
Vu, Kim Yen
Image analysis
Image compression or coding
Predictive coding
358430, 348415, 386 68, H04N 1415
Patent
active
060786930
ABSTRACT:
A method and apparatus for reproducing data compressed in accordance with a motion picture experts group (MPEG) standard and recorded on a recording medium. The data represents a plurality of frames which correspond to a plurality of groups of pictures (GOPs), in which each of the GOPs includes different types of pictures including intraframe predictively (I) encoded and interframe predictively (P) encoded pictures. The compressed data is read from the recording medium, and the type of pictures corresponding to the read data is determined. The read image data is decoded and supplied to a display device. When special processing (such as, random accessing) is performed, image data may not be properly decoded during an initial period. During this time period, an auxiliary signal may be supplied to the display device. Such supply of the auxiliary signal continues until image data corresponding to an intraframe predictively encoded (I) picture and either another intraframe predictively encoded (I) picture or an interframe predictively encoded (P) picture are detected, whereupon the respective image data is properly decoded by utilizing the image data corresponding to the detected P and/or I pictures and supplied to the display device instead of the auxiliary signal.
REFERENCES:
patent: 5440345 (1995-08-01), Shimoda
patent: 5715009 (1998-02-01), Tahara et al.
patent: 5715354 (1998-02-01), Iwamura et al.
patent: 5946040 (1999-08-01), Kato et al.
Patent Abstracts of Japan, vol. 17, No. 680 (E-1476), Dec. 14, 1993 of PAT: A 5227483 Sep. 3, 1993.
Final Text for DIS 11172-1 (rev.2): "Information Technology-Coding of Moving Pictures and Associated Audio for Digital Storage Media"--Part 1--Coding at up to about 1.5 Mbit/s (ISO/IEC JTC 1/SC 29/WG 11N 0156).
Fujinami Yasushi
Kawamura Makoto
Shimizu Yoshinori
Frommer William S.
Smid Dennis M.
Sony Corporation
Vu Kim Yen
LandOfFree
Method and apparatus for reproducing encoded data 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 reproducing encoded data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for reproducing encoded data will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1860600