关键词: 活动轮廓模型, 图像分割, 点分布模型, Gaussian金字塔

Abstract: A semiautomatic method for medical image segmentation based on active shape model was introduced. In order to improve the segmentation speed and precision, a semiautomatic method was used to model the training set, and a Gaussian Pyramid of images with different resolutions was generated so that multi-resolution image search could be performed. Experiments and analysis show that this method can be used to segment the lung region of medical images and the results are quite better.

Key words: active shape model, image segmentation, point distributed model, Gaussian pyramid