Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2008-09-02
2008-09-02
Vo, Tung (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
11113290
ABSTRACT:
An image information conversion apparatus and method by which picture quality deterioration caused by conversion from inputted MPEG2 image compression information into MPEG4 image compression information to be outputted is prevented. When an I picture of an MPEG2 bit stream is to be converted into a P-VOP of an MPEG4 bit stream based on an estimated value of the complexity for each VOP, a scene change detection section detects whether or not the I picture includes a scene change. If a scene change is detected by the scene change detection section, then a GOV structure determination section determines that conversion of the I picture of the MPEG2 bit stream into a P-VOP of an MPEG4 bit stream should not be performed.
REFERENCES:
patent: 6587506 (2003-07-01), Noridomi et al.
patent: 6590938 (2003-07-01), Azadegan et al.
patent: 6647061 (2003-11-01), Panusopone et al.
patent: 6658157 (2003-12-01), Satoh et al.
patent: 7012959 (2006-03-01), Sato et al.
patent: 7088780 (2006-08-01), Vetro et al.
patent: 2002/0051494 (2002-05-01), Yamaguchi et al.
patent: 2002/0110193 (2002-08-01), Yoo et al.
patent: 2004/0008774 (2004-01-01), Takahashi et al.
“Field-to Frame Transcoding With Spatial and Temporal Downsampling” Susie J. Wee, John G. Apostolopoulos, IEEE International Conference on Image Processing, Kobe Japan, Oct. 1999.
Sato Kazushi
Suzuki Teruhiko
Takahashi Kuniaki
Yagasaki Yoichi
Kananen Ronald P.
Rader & Fishman & Grauer, PLLC
Sony Corporation
Vo Tung
LandOfFree
Image information conversion apparatus and image information... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image information conversion apparatus and image information..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image information conversion apparatus and image information... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3936329