VISIBILITY EVALUATION METHOD AND EVALUATION DEVICE FOR VISUAL RECOGNITION OBJECT

摘要

PROBLEM TO BE SOLVED: To provide a visibility evaluation method and evaluation device for a visual recognition object, matching the real world in consideration that the real space is a three-dimensional space or that there is a reflective or transmissive face in a target space.;SOLUTION: In this visibility evaluation method for evaluating visibility of the visible recognition object from a viewpoint in the target space provided with the visible recognition object and the viewpoint, at least one section such as a triangular mesh is provided on the surface of the visual recognition object, and the visibility from the viewpoint is evaluated by ray tracing in each the section. For example, when two or more vertexes are visible by the ray tracing of three vertexes of the mesh and the viewpoint, it is decided that the mesh is visible. Next, a total of the visibility is calculated for each section as the visibility of the visual recognition object.;COPYRIGHT: (C)2006,JPO&NCIPI