The technologies are emphasized , including image collection , preprocessing , edge detection and selection , calculating the dose of the point and drawing the isodose 着重探讨了系统的实现技术，包括模拟定位机下定位图像的采集、预处理、边缘识别与提取、任意点的剂量计算和等剂量曲线的绘制等。
2.
In this thesis , ga is used to optimize the beam weights of intensity modulated radiation therapy ( imrt ) inverse planning , and 2d and 3d isodose contour as well as dose volume histogram ( dvh ) are used to evaluate the treatment plan 本文应用遗传算法优化逆向调强放疗计划中射束的权重，用二维等剂量线、三维剂量分布和剂量体积直方图来评估计划的优劣。
