GENERATION METHOD AND GENERATION DEVICE OF DEFOCUS IMAGE

摘要

PROBLEM TO BE SOLVED: To provide a means to generate a defocus image efficiently and display it on a real time basis in three-dimensional CG.;SOLUTION: The method is for generating a two-dimensional image by performing perspective transformation from a viewpoint of an observer to an object arranged in view volume. This method comprises the following steps: (a) a step for dividing the space in the above-described view volume into a plurality of voxels more finely divided in proportionate to adjacency degree to the viewpoint of the observer; (b) a step for calculating the amount of the blur on retina of the above-described observer by tracing an optical path from the center of the above-described voxel to the above-described viewpoint; (c) a step for calculating and recording range of shifting the vertex in the voxel corresponding to the amount of the blur on the above-described retina; (d) a step for actually shifting the vertex responding to the above-described vertex shifting range; and (e)the step for generating the above-described two-dimensional image seen from the above-described viewpoint by the perspective transformation.;COPYRIGHT: (C)2009,JPO&INPIT