Device for high efficiency encoding and decoding of picture...

Details Device for high efficiency encoding and decoding of picture... Device for high efficiency encoding and decoding of picture...

H - Electricity

04

N

H04N 5/76 (2006.01) G06T 9/00 (2006.01) H04N 5/14 (2006.01) H04N 7/26 (2006.01) H04N 7/36 (2006.01) H04N 7/46 (2006.01) H04N 7/50 (2006.01) H04N 7/137 (1990.01) H04N 7/133 (1990.01)

Patent

CA 2099175

ABSTRACT To realize a high picture quality with a small information volume, to reduce the hardware scale and to reduce the capacity of the frame buffer of a decoder. A limitation mode decision circuit 34 adaptively changes over a mode of inhibiting interframe predictive coding over the entire macro-blocks in each slice to a mode of inhibiting interfield predictive coding in a frame being encoded over the entire macro-blocks in one slice. As for a B-frame, prediction from its odd field to its even field is inhibited, while prediction from an odd field, such as an Io field, of a reference frame of forward prediction ia also inhibited.

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