基于边界跟踪的区域面积计算  

CALCULATION OF IMAGE'S REGION AREA BASED ON CONTOUR TRACING

作　　者：葛伟华[1] 陈优广[1] 

机构地区：[1]华东师范大学信息科学技术学院,上海200062

出　　处：《计算机应用与软件》2008年第6期239-240,274,共3页Computer Applications and Software

摘　　要：给出了一种基于边界跟踪的区域面积计算。根据图像边界跟踪时下一次和上一次跟踪方向,确定图像的左右边界。利用边界像素的横坐标进行加权求和计算,求得图像区域面积。与现有的面积计算方法相比,该算法只需跟踪边界一遍,即可获得区域面积,且算法不用借助链编码,具有速度快、计算量小、结果准确等优点。An algorithm for calculating image＇s region area based on contour tracing is proposed. The left and right boundaries of the image can be determined according to the tracing directions of next-time and last-time when tracing image＇s contour. The area of the image＇s region is obtained from the calculation on weighting sum with abscissa of contour pixels. By this algorithm the region area can be found after only tracing the contour once without relying on chain-code. Its advantages include fast calculation with small working load and precise outcome.

关 键 词：区域面积 边界跟踪 计算方法 区域填充 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]