Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2004-10-15
2010-06-01
Rao, Andy S (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C375S240240, C375S240010, C348S700000
Reexamination Certificate
active
07729424
ABSTRACT:
A method for judging a lost block characteristic in a video processing system including certifying whether a lost block exists among transmitted video blocks, calculating a temporal difference cost1between neighborhood pixels of the lost block in a present frame and a previous frame, and calculating a motion vector distribution value cost2of peripheral blocks of the lost video block. The method also includes comparing the temporal difference cost1and the motion vector distribution value cost2with preset threshold values, and determining a characteristic of the lost block based on a result of the comparison. The automatically judged characteristic of the lost block is utilized as information for recovering the lost block to thereby reproduce a recovery video close to the original video.
REFERENCES:
patent: 5247363 (1993-09-01), Sun et al.
patent: 5410553 (1995-04-01), Choon
patent: 5621467 (1997-04-01), Chien et al.
patent: 5912707 (1999-06-01), Kim
patent: 6141381 (2000-10-01), Sugiyama
patent: 6590934 (2003-07-01), Kim
patent: 7110454 (2006-09-01), Chakraborty
patent: 2005/0033505 (2005-02-01), Zatz
patent: 0 557 684 (1993-09-01), None
patent: 2 308 766 (1997-07-01), None
patent: 09-187016 (1997-07-01), None
patent: 9-247681 (1997-09-01), None
patent: 00032572 (2000-06-01), None
Tao Chen et al., “Error Concealment Using Refined Boundary Matching Algorithm”; Information Technology: Research and Education 2003. Proceedings ITRE2003. International Conference on Aug. 11-13, 2003, Piscataway, NJ, USA, IEEE, pp. 55-59 XP010684972.
European Search Report dated Nov. 8, 2005.
Chinese Office Action dated Jul. 28, 2006.
Japanese Search Report (and English-language translation) dated Apr. 21, 2008.
European Office Action dated Aug. 12, 2009.
KED & Associates LLP
LG Electronics Inc.
Pe Geepy
Rao Andy S
LandOfFree
Apparatus and method for judging lost block characteristic... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for judging lost block characteristic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for judging lost block characteristic... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4161180