by traditional level set based segmentation models. In this paper, we propose a new level set method integrating local and global intensity information adaptively to segment inhomogeneous images. The local image information is associated with the

Portal images are acquired by electronic portal imaging devices (EPID) with megavoltage (MV) x-ray, but they are inherently poor in terms of contrast, due to Compton Effect. In comparison with diagnostic x-ray images, portal images usually lack s

蚁群算法的另一种实现形式,通过全局的搜索,避免陷入局部解的改进程序-Another realization forms of the ant colony algorithm, through global search, avoid falling into local solution of the improvement program

A Corner Detector -based on Global and Local Curvature Proper-A Corner Detector-based on Global and Local Curvature Proper