Optimal filtering for patterned displays

被引：50

作者：

Platt, JC ^{[1
]}

机构：

[1] Microsoft Res, Redmond, WA 98052 USA

来源：

IEEE SIGNAL PROCESSING LETTERS | 2000年 / 7卷 / 07期

关键词：

anti-aliasing; ClearType; fonts; image processing; liquid crystal displays; optimal filtering; patterned displays;

D O I：

10.1109/97.847362

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Displays with repeating patterns of colored subpixels gain spatial resolution by setting individual subpixels rather than by setting entire pixels, This paper describes optimal filtering that produces subpixel values from a high-resolution input image. The optimal filtering is based on an error metric inspired by psychophysical experiments. Minimizing the error metric yields a linear system of equations, which can be expressed as a set of filters. These filters provide the same quality of font display as standard anti-aliasing at a point size 25% smaller. This optimization forms the filter design framework for Microsoft's Clear Type.

引用

页码：179 / 181

页数：3