| 摘要 |
An apparatus for detecting motion of blocks by block matching of detecting a matching degree of corresponding positions between pictures. The device comprises integrators (12) each having a calculating unit (22) for calculating picture positions taking into account a motion vector and an angle of motion between blocks subjected to matching and an accumulator (28) for finding and accumulating absolute values of differences for the respective picture positions, and a decision circuit (13) for collecting outputs of the integrators (12) for each of macro-blocks as a unit and finding the smallest of the integrator outputs. With the present apparatus, not only the motion vector but also the angle of motion can be detected. Therefore, if the apparatus is applied to a picture encoding and decoding system, motion compensation may be achieved effectively for pictures not only performing a translatory movement but also changing in the angle of motion. <IMAGE> |
