Television – Bandwidth reduction system – Data rate reduction
Patent
1995-10-26
1998-07-28
Chin, Tommy P.
Television
Bandwidth reduction system
Data rate reduction
348395, H04N 712
Patent
active
057868557
ABSTRACT:
A method and apparatus for generating region frames from video frames are disclosed which employs an industry standard encoder to lessen the negative impact on the quality of the transmitted video sequence while consuming fewer bits. The method and apparatus utilizes image segmentation and color replacement techniques to create the region frames. Each region frame includes a subject region, zero or more previously segmented regions and zero or more non-subject regions. The subject region is defined by the pixels of the original video frame. The previously segmented regions and non-subject regions are assigned replacement pixels P.sub.n,y and C.sub.n, respectively. The replacement pixel C.sub.n is chosen to indicate a color that is not likely to be confused with any color in the subject region R.sub.n. The replacement pixels P.sub.n,y are chosen such that the compression ratio of the region frame data is maximized. Using the region frames, content based scalability can be provided without the need for special encoders and/or channels having a wider bandwidth.
REFERENCES:
patent: 4965845 (1990-10-01), Chan et al.
patent: 5091967 (1992-02-01), Ohsawa
patent: 5162898 (1992-11-01), Aono
patent: 5293228 (1994-03-01), Marti
patent: 5448296 (1995-09-01), Music
patent: 5453787 (1995-09-01), Hancock et al.
patent: 5510838 (1996-04-01), Yomdin et al.
patent: 5646691 (1997-07-01), Yokoyama
Chen Tsuhan
Haskell Barin Geoffry
Chin Tommy P.
Din Luanne P.
Lucent Technologies - Inc.
LandOfFree
Method and apparatus for coding segmented regions in video seque 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 coding segmented regions in video seque, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for coding segmented regions in video seque will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-26808