Title:
MOTION VECTOR DETECTOR FOR PICTURE
Document Type and Number:
Japanese Patent JP3303312
Kind Code:
B2
Abstract:
PURPOSE: To provide a motion vector detector for a picture capable of detecting the motion vector of the picture with high accuracy.
CONSTITUTION: A difference between picture data of each picture element of a block of a current frame and picture data of representative point picture elements of a preceding frame read from a representative point memory 11 is detected by a subtractor circuit 12 and a correlation integration list is generated by a correlation integration list generating circuit 13. A motion vector estimating circuit 14 obtains a coordinate in the middle corresponding to a minimum value of an nth order curved face including the minimum correlation integration value of the coordinate of the minimum correlation integration value of the correlation integration list with respect to a circumferential coordinate to estimate the motion vector.
Inventors:
Tetsujiro Kondo
Yasuhiro Fujimori
Masafumi Uchida
Ken Horishi
Tsukasa Hashino
Yasuhiro Fujimori
Masafumi Uchida
Ken Horishi
Tsukasa Hashino
Application Number:
JP29048591A
Publication Date:
July 22, 2002
Filing Date:
October 11, 1991
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N5/232; (IPC1-7): H04N5/232
Domestic Patent References:
| JP2118888A | ||||
| JP61105178A | ||||
| JP4365184A |
Attorney, Agent or Firm:
Akira Koike (3 others)