Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1997-01-09
1998-01-27
Allen, Stephone
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
348208, H04N 530, H04N 5228, H04N 718
Patent
active
057124744
ABSTRACT:
This invention has as its object to provide an image processing apparatus which appropriately corrects an image blur, and can prevent an image disturbed by the correction contrary to its original purpose from being photographed or recorded. In order to achieve this object, an image processing apparatus for detecting motion vectors from an image signal and correcting an image blur in real time, includes: detection apparatus for detecting motion vectors between images by executing a correlation calculation between time-serially continuous images; calculation apparatus for calculating the absolute deviation of an image from a reference point by adding the motion vectors detected by the detection apparatus; comparison apparatus for comparing the absolute deviation with a predetermined correction amount; and interruption apparatus for, when a state wherein the absolute deviation is larger than the predetermined correction amount continues for a predetermined period of time or longer, determining that the image blur has exceeded a correctable range, and interrupting correction of the image blur.
REFERENCES:
patent: 4965442 (1990-10-01), Girod et al.
patent: 5289274 (1994-02-01), Kondo
patent: 5291300 (1994-03-01), Ueda
patent: 5371539 (1994-12-01), Okino et al.
patent: 5450126 (1995-09-01), Nishida
Allen Stephone
Canon Kabushiki Kaisha
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