| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a motion vector detector for detecting a motion vector of a moving image, and to provide a program. <P>SOLUTION: The motion vector detector (1) includes: resolution determining means (11, 12, 13, 14) which detect the proportion of power of a high-frequency region in a time direction and/or the proportion of power of a low-frequency region in a spatial direction, and determine a value of resolution; and a hierarchical motion vector detecting means (15) which starts detection of motion vector from a layer having a block size corresponding to the value of resolution and the size of a range of motion search, and gradually shifts to detection of motion vector in a layer having a block size smaller than the block size and the size of a search range smaller than the search range. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
