| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently manage data regarding rendering of a three-dimensional model. <P>SOLUTION: By attaching a texture of a prescribed pattern formed beforehand to the three-dimensional model, performing rendering and analyzing a rendering-completed image obtained as a bitmap image, a computer 20 sets correspondence relation between the coordinates (x, y) of the rendering-completed image and the coordinates (Xt (x, y), Yt (x, y)) of the texture, gain Gc, t (x, y), and bias Bc, t (x, y). Then, a texture area is extracted from the bias Bc, t (x, y), the bias Ec, t (x, y) for the texture area is compressed by reversible compression, and the bias Fc, t (x, y) for a non-texture area is compressed by JPEG compression after complementing blank pixels inside the texture area so as to gradually change grayscale values in the vicinity of the boundary. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
