Patent ID: 7162398
Filing Date: 2007-01-09
Classification: G06F,G06T

Abstract:
1. A computer-implemented method for evaluating dynamic perspective distortion of a transparent body comprising the steps of: producing a model of three-dimensionally curved shape of a transparent body having a predetermined refractive index; determining an eye point at a side of the model of three-dimensionally curved shape and a virtual evaluation pattern having a plurality of evaluation points at the other side of the model of three-dimensionally curved shape; observing, from the eye point, the a virtual evaluation pattern through the transparent body, extracting perspective evaluation points as images of the evaluation points, obtained by observing through the transparent body, in a two-dimensional picture image obtained by the observation, and obtaining a plurality of distance values between a plurality of adjacent perspective evaluation points; determining a reference value, among the plurality of distance values, and evaluating the dynamic perspective distortion of the transparent body by obtaining ratios of each of the plurality of distance values to the reference value, wherein the virtual evaluation pattern is an orthogonal grid pattern.