Motion detecting circuit for video image

Details Motion detecting circuit for video image Motion detecting circuit for video image

1990-08-28

1992-12-22

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358136, H04N 718

Patent

active

051737710

ABSTRACT:
A motion detecting circuit separates picture data of one frame into a plurality of image segments. The circuit includes a first memory for receiving picture data of current frame image and a second memory for receiving picture data of a previous or one frame delayed image. Each of the first and second memories comprises a plurality of memory areas separated into two blocks, and each individual memory area is adapted to store picture data for one image segment. The two memory blocks are operative in alternating fashion in reading and writing picture data. A plurality of arithmetic circuits are associated with the memory area to receive therefrom the picture data of each image segment and to process the received picture data for deriving a motion vector of each individual image segment.

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