Motion vector detection circuit and object tracking camera appar

Details Motion vector detection circuit and object tracking camera appar Motion vector detection circuit and object tracking camera appar

1996-08-27

1999-02-09

Tung, Bryan

Television

Object tracking

348208, 348699, H04N 718

Patent

active

058701419

ABSTRACT:
A motion vector detection circuit includes a single representative point memory into which representative point data at a preceding frame of all of a plurality of detection blocks formed in a motion vector detection area in an overlapped manner are written. All pixel data at a current frame of the motion vector detection area are written into a single pixel memory. The representative point data are selectively read-out from the representative point memory, and the pixel data of a detection block corresponding to the selected representative point data are read-out from the pixel memory. Then, correlation of the selected representative point data between the pixel data is determined by a correlator, whereby a motion vector can be detected. Since all the representative point data and all the pixel data in the motion vector detection area are respectively written into the representative point memory and the pixel memory, it is possible to reduce the number of components and a cost.

REFERENCES:
patent: 5361104 (1994-11-01), Ohki
patent: 5389918 (1995-02-01), Kusaka et al.
patent: 5650819 (1997-07-01), Sato et al.

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