Patent ID: 6707998
Filing Date: 2004-03-16
Classification: G06T

Abstract:
A method of correcting for non-symmetric distortion in an image having specific pixel locations generated from an imaging system producing a distortion predominantly in one image dimension, said method comprising the steps of:a) providing a distortion model capable of correcting the non-symmetric distortion in the image that is predominantly in the one image dimension, wherein the distortion model describes the mapping of a specific pixel location (mo,no) of an image corrected for the non-symmetric distortion to a corresnonding location (xo,yo) in the image; b) providing one or more correction parameters, wherein each correction parameter relates to the distortion predominantly in the one image dimension; and c) generating a pixel value of the image corrected for the non-symmetric distortion at the specific pixel location (mo,no) by using the distortion model and the one or more correction parameters to determine the corresponding location (xo,yo) in the image, and using interpolation of nearby pixel values of the image to determine the pixel value.