| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce a memory amount and a block matching number for moving vector detection, and encode by a smaller resource and in high speed. <P>SOLUTION: If an original image signal 101 for every fields inputs, motion detection (ME) unit 116 compares the original image signal 101 with a field reference image of a former field stored in either one of field memories 113, 114, obtains the motion vector, and outputs to a motion compensation predict (MC) unit 118 and a switching control unit 117. At the time, the motion detection (ME) unit 116 stores the motion vector of the original image signal 101 of the former field, obtains an average value of every field, and calculates an average value for every field, the switching control unit 117 switches switching switches 112, 115 based on the average value, and switches whether the reference image stored in the field memory 113 is used or the reference image stored in the field memory 114 is used. <P>COPYRIGHT: (C)2008,JPO&INPIT |
