Picture encoding device, image decoding device and their methods
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United States of America Patent
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Jan 4, 2011
Issued Date -
N/A
app pub date -
Sep 22, 2003
filing date -
Oct 1, 2002
priority date (Note) -
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Abstract
A weighting factor mode determination unit determines whether to code an interlaced picture in a field mode or a frame mode, based on a value of a flag “AFF” indicating whether or not to switch between the field mode and the frame mode on a block-by-block basis and notifies switches and a multiplexing unit of the determined mode. The switches select either the field mode or the frame mode according to the notified mode. A field weighting factor coding unit or a frame weighting factor coding unit performs respectively the coding of respective weighting factors when the respective modes are selected.
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