MOVING IMAGE ENCODING DEVICE AND METHOD, MOVING IMAGE DECODING DEVICE AND METHOD, BITSTREAM

An encoding controlling unit 3 selects one transformation block size which provides an optimal degree of encoding efficiency from a set of transformation block sizes which are determined in accordance with an encoding mode 7, and includes the transformation block size selected thereby in optimal com...

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Bibliographische Detailangaben
Hauptverfasser:	MURAKAMI, TOKUMICHI, ASAI, KOHTARO, MORIYA, YOSHIMI, SEKIGUCHI, SHUNICHI, SUGIMOTO, KAZUO
Format:	Patent
Sprache:	eng ; pol
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	An encoding controlling unit 3 selects one transformation block size which provides an optimal degree of encoding efficiency from a set of transformation block sizes which are determined in accordance with an encoding mode 7, and includes the transformation block size selected thereby in optimal compression parameters 20a to notify the transformation block size to a transformation/quantization unit 19, and the transformation/quantization unit 19 divides an optimal prediction differential signal 13a into blocks having the transformation block size included in the optimal compression parameters 20a, and carries out a transformation and quantization process on each of the blocks to generate compressed data 21.