Image-processing system and image-processing program

Details Image-processing system and image-processing program Image-processing system and image-processing program

2007-03-05

2010-12-07

Couso, Yon (Department: 2624)

Image analysis

Image enhancement or restoration

C348S222100, C348S241000

Reexamination Certificate

active

07848587

ABSTRACT:
An image deteriorated by camera shake, or the like, is restored in a short period of time. A ∇J computation section computes an evaluation value J from a deteriorated image G captured by means of photographing, a restored image F, and a PSF computed from an angular velocity detected by an angular velocity sensor, and further computes ∇J. When the square of norm of ∇J exceeds a threshold value, there is iterated processing for computing a new, restored image F by means of subtracting ε·∇J from the restored image F. A convergence parameter computation section sets the convergence parameter ε as a value which first shows an increase and subsequently a decrease depending on the number of iterations, thereby increasing the speed of convergence and inhibiting divergence.

REFERENCES:
patent: 7079179 (2006-07-01), Sumitomo et al.
patent: 7693342 (2010-04-01), Poon et al.
patent: 2005/0249429 (2005-11-01), Kitamura
patent: 2002-288653 (2002-10-01), None
“New Edition of Image Analysis Handbook”, editorship of Mikio Takagi, University of Tokyo Press, Sep. 2004.

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