CODING DEVICE BINARY SHAPE SIGNAL IN ADAPTABLE

摘要

PURPOSE: A coding device a binary shape signal in adaptable is provided to code a binary shape signal in adaptable by performing a progressive coding and an interlaced coding with respect to a binary shape signal in adaptable. CONSTITUTION: A binary shape signal adaptable coding device(100) comprises the first deciding unit(110), the first binary alpha block(BAB)-field motion estimation unit(120), the second deciding unit(130), the second BAB-field motion estimation unit(140), the third deciding unit(160), a BAB-field coding unit(170), a BAB-frame coding unit(180), the fourth deciding unit(190) and a multiplexer(196). The first BAB-field motion estimation unit(120) comprises the first upper BAB-field motion estimation unit(121) and the first lower BAB-field motion estimation unit(122). The second BAB-field motion estimation unit(140) comprises the second upper BAB-field motion estimation unit(141) and the second lower BAB-field motion estimation unit(142). The fourth deciding unit(190) comprises a BAB-field coding unit, a data bit calculation unit, a comparator and a selector.