| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motion vector detector capable of reducing the number of registers required for detection processing of a motion vector in comparison with the conventional manner when the motion vector to a pixel block for coding of a predetermined frame is detected from a comparatively wide search range. <P>SOLUTION: The motion vector detector 100 includes difference value sum storage registers 140a<SB>0</SB>-140a<SB>n</SB>fewer than the number of search points set to the search range of the motion vector and one minimum value storage register 140b which stores the minimum value of the difference value sum. Arithmetic processings of the difference value sum of the number of difference value sum storage registers are performed in parallel, whenever these arithmetic results are stored in the corresponding difference value sum storage registers 140a<SB>0</SB>-140a<SB>n</SB>, respectively, the difference value sums are compared with the difference value sum stored in the minimum value storage register and processing for making the difference value sum of the minimum value storage register into the minimum value among them is performed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
