H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/50 (2006.01) G06T 9/00 (2006.01) H04N 7/30 (2006.01)
Patent
CA 2260578
An encoding apparatus and method adjust texture information for a video object based on original shape information for the video object. The original shape information is not encoded shape information or information that has been encoded and then decoded. In a preferred embodiment, the texture information is adjusted by 0 padding pets near the boundary of the video obj ect in an inter mode, or by lowpass extrapolation filtering pets near the boundary of the video object in an infra mode where the boundary of the video object is defined by the original shape information. Lossy shape encoding can therefore be performed while decreasing the overall encoded bit rate, improving the subjective appearance of the decoded video object and decreasing computational complexity of the encoder and/or encoding method. Adaptive scanning and subsampling of macroblocks can be avoided while having little effect on overall bitrate and significantly decreasing computational complexity of the encoding process.
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
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