%0 Journal Article
%T An Image Deformation Algorithm Based on Triangle Skeleton Coordiante<br>基于三角形骨架坐标的图象渐变算法
%A ZHANG Yong-hua
%A <br>张永华
%A 赵恒
%J 中国图象图形学报
%D 2001
%I 
%X In order to realize digital image deformation in an irregular polygon area rapidly, an image deformation algorithm is presented, which is based on triangle skeleton coordinate. First, any irregular polygon image area can be divided to a few of triangle areas. Then, according to skeleton coordinate system of triangle shell, skeleton coordinate can be calculated for any pixel in every triangle area. Because any change of a triangle shell will cause particular image deformation inside it, the change of a triangle shell can be designed intentionally to control image deformation inside it. Using skeleton coordinate system, a formula is proposed which can be used to compute any variation of a pixel's coordinate when a triangle shell is changed. Based on the formula, a corresponding relation of color is established between a new pixel after triangle shell change and original image pixels. Using the image deformation algorithm in an irregular polygon area, some image deformation problems such as motion simulation can be solved.
%K Computer animation
%K Skeleton technique
%K Image deformation<br>计算机动画
%K 骨架方法
%K 图象渐变算法
%K 三角形骨架坐标
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=D06194629680C940ACE75262F54B9D85&aid=2A0E5F683B6C0628&yid=14E7EF987E4155E6&vid=B31275AF3241DB2D&iid=E158A972A605785F&sid=683005D16807E4FE&eid=869B6F3117981EC4&journal_id=1006-8961&journal_name=中国图象图形学报&referenced_num=0&reference_num=6