A Contour Detection Algorithm Based on Chain Code in Gamma Knife Treatment Planning System
Zhu Zhihon · Beijing shengwu yixue gongcheng · 2001
In gamma knife treatment planning system,contour detection of the body surface,tumors and other tissues must be done precisely in order to provide intuitionistic reference grounds for three dimensional reconstruction.In this paper,a new contour detection algorithm based on chain codes is introduced to replace the currently predominantly used manual contour detection.The algorithm also provides results for faultage scan image.The results demonstrated that,by using the new algorithm in the treatment planning system,both the precision and the automation level of contour detection are improved remarkably,and they can meet practical requirements.