摘要
介绍了在计算机图形学中存在的走样问题，从频域的角度剖析了其产生的机理，阐明了反走样技术实现的基本原理和常见的实现方法，并对二维滤波的反走样技术作了细致的分析．通过对取样体积数值积分的数学推导，提出了二维圆锥形滤波器的关键参数的提取方法，并将此参数运用于消除显示直线时产生的锯齿现象，结合直线的中点画线法，在微机上用程序实现了直线的反走样图形算法，结果表明。
Antialiasing problem in computer graphics is introduced. This paper analyzes the causes of aliasing in the view of frequency field, and explains how antialiasing technique is usually actualized,and some methods are presented. Two dimension filter antialiasing method is analysed in detail. Key parameters of two dimension cone filter are deduced by sampling bulks numerical integration. With the parameters and middle point drawing line algorithm,an antialiasing algorithm in drawing line is implemented,which comes out with fine effect in computer.
出处
《武汉大学学报（自然科学版）》
CSCD
1997年第1期113-118,共6页
Journal of Wuhan University(Natural Science Edition)
基金
国家教委面向二十一世纪教学改革科研基金
