| 摘要 |
PROBLEM TO BE SOLVED: To generate the image signal of a virtual frame by precisely detecting the motion vector of a pixel in the virtual frame which is positioned between the m-th frame and the n-th frame. SOLUTION: A motion vector setting part 112 sets the motion vector MV0. A motion vector calculator 113 assumes that the motion vector MV0 is the motion vector of the pixel in the virtual frame, determines positions in the m-th and n-th frames corresponding to the pixel, performs a gradient method arithmetic processing through the use of a pixel block with the determined positions as reference, and obtains a motion vector va1. A vector adder 114 generates a motion vector MVa1 by adding the motion vector MV0 to the motion vector va1. In the same way, a motion vector calculator 115 generates a motion vector va2. A vector adder 116 adds the motion vector MV0 to the motion vector va1, and generates the motion vector MVc of the pixel in the virtual frame. The image signal of the virtual frame is generated by performing interpolation through the use of the motion vector MVc and the image signals of the m-th and n-th frames. COPYRIGHT: (C)2005,JPO&NCIPI
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