Patent ID: 7706623
Filing Date: 2010-04-27
Classification: G06T

Abstract:
1. An image correcting method for generating a correction image from 1st and 2nd pattern images, said method comprising: generating a random noise pattern image having grayscale values that are finer than grayscale values of the 1st pattern image; superposing the random noise pattern image at least on a region of the 1st pattern image having equal grayscale values within the region; identifying a linear prediction model that describes an input-output relationship of the images by operations of: (1) forming a relational expression of a matrix using the 2nd pattern image as an output, and using the 1st pattern image on which the random noise is superposed as an input, (2) generating simultaneous equations from the matrix, (3) solving the simultaneous equations to estimate parameters of the linear prediction model; and generating a correction image by applying the linear prediction model with the estimated parameters to the 1st pattern image.