Patent ID: 7796803
Filing Date: 2010-09-14
Classification: G06T

Abstract:
1. An image correction apparatus for generating a model image from an inspection reference image and an image to be tested, said apparatus comprising: an image division unit operative to divide the reference image into a plurality of frequency regions to thereby form a plurality of frequency division images; a decomposition image generation unit operative to provide reference points at a plurality of spaced-apart locations within at least one of the frequency division images and apply weighting to the frequency division image with each reference point as a reference to thereby generate decomposition images corresponding in number to the reference points; a model parameter identification unit operative to identify a model parameter by use of two-dimensional linear prediction models of the to-be-tested image, the decomposition images corresponding in number to the reference points and a frequency division image which does not generate decomposition images; and a model image generation unit operative to generate a model image by using the model parameter identified.