公开(公告)号：US20020158869A1

公开(公告)日：2002-10-31

申请号：US10002312

申请日：2001-10-24

Applicant: Sony Computer Entertainment Inc.

Inventor： Mr. Akio Ohba ,  Mr. Masaaki Oka ,  Mr. Naoto Yoshioka

IPC: G06T015/30

CPC classification number: G06T15/04

Abstract: Abstract of DisclosureAn image processing apparatus includes a normal vector mapping section for dividing a surface of an object into a plurality of divided surfaces and generating a first normal vector pointing to the vertical direction of each of the divided surfaces, a luminance value mapping section for replacing the first normal vector of each divided surface with a luminance value associated with one of a predetermined number of second normal vectors, each associated with a different luminance value, which is most analogous in characteristic to the first normal vector, and a graphic processor for shading each divided surface according to the replaced luminance value.

Abstract translation: 一种图像处理装置包括：法线矢量映射部分，用于将物体的表面划分成多个分割表面，并产生指向垂直方向的第一法线矢量; 每个分割表面，亮度值映射部分，用于用与预定数量的第二法向量中的一个相关联的亮度值来替换每个划分的表面的第一法线向量，每个第二法线向量与不同的亮度值相关联，其与 第一法线矢量的特征，以及根据替换的亮度值对每个划分的表面进行阴影的图形处理器。