| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To increase the accuracy of motion vector detection without increasing the computation amount of motion search. <P>SOLUTION: The motion vector detection apparatus comprises a shift register set in which a plurality of shift registers are connected in series, where each pixel value in a motion vector search range is transferred sequentially and input from the first to the last of the shift registers, and outputs are individually extracted from the shift registers; a plurality of selecting means provided, in correspondence with predetermined pixel positions in a coding target block and for receiving a plurality of outputs from predetermined shift registers of the shift register set and selectively outputting any of the received outputs; an absolute difference value calculating means, provided for each pixel and for calculating the differential absolute value between each pixel value in the coding target block and each pixel value, in a block that is to become a candidate for the reference block in the motion vector search range, which is supplied from the selecting means or the shift register set; and a control means for controlling the selecting means by a predetermined control signal. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
