Arrangement of encoding motion image signals using motion...

Details Arrangement of encoding motion image signals using motion... Arrangement of encoding motion image signals using motion...

H - Electricity

04

N

H04N 7/12 (2006.01) G06T 7/20 (2006.01) G06T 9/00 (2006.01) H04N 5/14 (2006.01) H04N 7/26 (2006.01) H04N 7/30 (2006.01) H04N 7/36 (2006.01) H04N 7/50 (2006.01)

Patent

CA 2087802

A plurality of frame image signals are successively applied to an image signal encoder. A motion region of an incoming frame image signal is extracted and then approximated in shape to a polygon. The vertices of the polygon are determined and then the coordinate values of the vertices are calculated and transmitted. Further, in the event that the incoming image signal includes a region which is required to undergo orthogonal transformation, the region are extracted and then divided into a plurality of small regions. Following, each of the divided small regions is approximated in shape to a polygon and then the vertices thereof are detected. Subsequently, the coordinate values of the vertices are calculated and then transmitted. Consequently, the data to be transmitted can effectively be reduced.

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