| 摘要 |
A motion detecting circuit separates picture data of one frame into a plurality of image segments. The circuit includes a first memory (2) for receiving current frame image data and a second memory (3) for receiving previous or one frame delayed image data. Each of the first and second memories (2, 3) comprises a plurality of memory areas (A, B) separated into two blocks, each individual memory area (A, B) storing picture data for one image segment. The two memory blocks (A, B) are operative in alternating fashion in reading and writing picture data. A plurality of arithmetic circuits (9 to 12) are associated with the memory areas (A, B) to receive therefrom the picture data of each image segment and process the received picture data for deriving a motion vector of each individual image segment. |
