Patent ID: 8179575

Claim:
A computer implemented method for determining chromatic distortion information, the method comprising: providing a template including a plurality of characterization features at a plurality of different locations on the template thereby forming an array of discrete geometric figures, the plurality of characterization features including a first characterization feature; obtaining an image of the plurality of characterization features using an imaging system including a microscope and an optical sensing array, wherein the image includes a reference color component corresponding to the first characterization feature, a first color component corresponding to the first characterization feature, and a second color component corresponding to the first characterization feature; determining first offset information indicative of a two-dimensional offset between a position of the first color component and a position of the reference color component; and determining second offset information indicative of a two-dimensional offset between a position of the second color component and the position of the reference color component, and wherein a number of characterization features forming the array is chosen to obtain a sufficient granularity and an accuracy of chromatic distortion information, and wherein the number of characterization features is directly proportional to the granularity, and inversely proportional to the accuracy of the chromatic distortion information.