Title:
MOTION VECTOR DETECTOR AND DETECTING METHOD
Document Type and Number:
Japanese Patent JP3861325
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To detect a motion vector with rough accuracy from a position of a picture element of an input image signal and to prevent a detection error.
SOLUTION: A pre-stage detection means 4 detects a 1st motion vector V1 with accuracy depending on a position of a picture element of an input image signal. An image signal whose motion is compensated by the motion vector V1 is obtained from a memory 2. A classification adaptive processing section 3 predicts a picture signal of a detailed pixel position more than the pixel position from the input picture signal. The predicted picture signal and the preceding picture signal whose motion is compensated from the memory 2 are fed to a post-stage detection section 9. The post-stage detection section 9 detects a 2nd motion vector V2 with accuracy corresponding to the pixel position smaller than the pixel position of the input image signal by a gradient method. An adder 5 adds the 1st and 2nd motion vectors to provide an output of a final motion vector.
Inventors:
Tetsujiro Kondo
Yasuhiro Fujimori
Yasuhiro Fujimori
Application Number:
JP14656296A
Publication Date:
December 20, 2006
Filing Date:
May 16, 1996
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H04N19/105; H04N19/136; H04N19/14; H04N19/189; H04N19/196; H04N19/42; H04N19/423; H04N19/50; H04N19/51; H04N19/513; H04N19/523; H04N19/533; H04N19/61; H04N19/625; H04N19/85; H04N19/90; H04N19/94; H04N19/98; (IPC1-7): H04N7/32
Domestic Patent References:
| JP7059093A | ||||
| JP7154642A |
Attorney, Agent or Firm:
Masatomo Sugiura
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