Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2000-03-16
2008-11-18
Lee, Young (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
07453941
ABSTRACT:
An encoding method, which achieves encoding efficiency, and good picture quality encoding even when there exists a picture in which a scene change occurs within an interlaced frame, is provided. A moving pictures encoding method treats a frame of interlaced image input signals as a picture, and performs prediction and encoding for this picture in macro-block units from a picture of both a forward picture, which is temporally in the past, and a backward picture, which is in the future. When performing encoding in accordance with the above-mentioned bi-directional picture, the method performs inter-field motion prediction, which treats as a unit a field, which divides each picture in macro-blocks into either odd numbers or even numbers of pixel scanning lines of this frame, and as a prediction mode, selectively switches in picture units between using prediction from a forward field motion vector for one field, and using prediction from a backward field motion vector for the other field, generates a predictive picture corresponding to the selected prediction mode, and encodes the input signal using the generated predictive picture.
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Japanese Office Action dated Nov. 16, 2004.
Hamano Takashi
Sakai Kiyoshi
Yamada Kouji
Yamori Akihiro
Fujitsu Limited
Katten Muchin & Rosenman LLP
Lee Young
LandOfFree
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