Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reissue Patent
2008-11-26
2011-10-04
Diep, Nhon T (Department: 2486)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reissue Patent
active
RE042790
ABSTRACT:
An object in a video sequence is tracked by object masks generated for frames in the sequence. Macroblocks are motion compensated to predict the new object mask. Large differences between the next frame and the current frame detect suspect regions that may be obscured in the next frame. The motion vectors in the object are clustered using a K-means algorithm. The cluster centroid motion vectors are compared to an average motion vector of each suspect region. When the motion differences are small, the suspect region is considered part of the object and removed from the object mask as an occlusion. Large differences between the prior frame and the current frame detect suspected newly-uncovered regions. The average motion vector of each suspect region is compared to cluster centroid motion vectors. When the motion differences are small, the suspect region is added to the object mask as a disocclusion.
REFERENCES:
patent: 5635986 (1997-06-01), Kim
patent: 5936671 (1999-08-01), Van Beek et al.
patent: 5940538 (1999-08-01), Spiegel et al.
patent: 5946043 (1999-08-01), Lee et al.
patent: 6075875 (2000-06-01), Gu
patent: 6137913 (2000-10-01), Kwak et al.
patent: 6169573 (2001-01-01), Sampath-Kumar et al.
patent: 6192156 (2001-02-01), Moorby
patent: 6236680 (2001-05-01), Chun et al.
patent: 6272253 (2001-08-01), Bannon et al.
patent: 6298170 (2001-10-01), Morita et al.
patent: 6335985 (2002-01-01), Sambonsugi et al.
patent: 6337917 (2002-01-01), Onural et al.
patent: 6389168 (2002-05-01), Altunbasak et al.
patent: 6393054 (2002-05-01), Altunbasak et al.
patent: 6400846 (2002-06-01), Lin et al.
patent: 6424370 (2002-07-01), Courtney
patent: 6466624 (2002-10-01), Fogg
patent: 6625333 (2003-09-01), Wang et al.
patent: 6985172 (2006-01-01), Rigney et al.
patent: 7095786 (2006-08-01), Schonfeld
patent: 7142600 (2006-11-01), Schonfeld et al.
patent: 7342963 (2008-03-01), Laurent-Chatenet et al.
patent: 2004/0090523 (2004-05-01), Kondo et al.
patent: 2004/0091047 (2004-05-01), Paniconi et al.
patent: 2005/0213660 (2005-09-01), Paniconi et al.
D. Schonfeld and D. Lelescu, “VORTEX: Video retrieval and tracking from compressed multimedia databases—multiple object tracking from MPEG-2 bit stream”; Journal of Visual Communications and Image Representation, Special Issue on Multimedia Database Management, vol. 11, pp. 154-182, 2000.
D. Schonfeld and D. Lelescu “VORTEX: Video Retrieval and Tracking From Compressed Multimedia Databases—Multiple Object Tracking From MPEG-2 Bit Stream”; Journal of Visual Communication and Image Representation 11, pp. 154-182, 2002.
Journal of Visual Communications and Image Representation, Special Issue on Multimedia Database Management, vol. 11, pp. 154-182, 200 (50pp).
Eickeler et al., “Content-Based Indexing of Images and Video using face Detection and Recognition Methods”.
IEEE Int. Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2001 (4pp).
Hariharakrishnan Karthik
Raffy Philippe
Schonfeld Dan
Yassa Fathy
Diep Nhon T
Dorsey & Whitney LLP
NeoMagic Corporation
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