计算机应用与软件2012，Vol.29Issue(1)：260-263,4.
结合Top-down和Bottom-up准则的有效图像分割方法
EFFECTIVE IMAGE SEGMENTATION METHOD COMBINING TOP-DOWN AND BOTTOM-UP CRITERION
摘要
Abstract
Image-based Bottom-up segmentation method can acquire the edge of the object with quite high exactness according to the discontinuity of the image, while the Top-down segmentation algorithm can acquires the configuration expression of the object, I. E.' CSF (class-specific fragment) through learning, where the CSF can be used to cover the images to be segmented and helps to obtain better segmentation effect. By combining the advantages of both criteria, we present an effective segmentation method. In the approach, the Top-down segmentation results are taken as the input images of Bottom-up segmentation, and the modified multi-scale marker is employed to control the refined edges of watershed transform to accomplish the segmentation. The algorithm uses the similarity standard and can determine conveniently and simply the sub-block belonging to the CSF and matches and covers the object image. Meanwhile, the morphological reconstruction computation is added into minima imposition technology, after the complementary operation being conducted on its result, the regional minimum is obtained, and the marker model constructed is more ideal. Experiments demonstrate that, the segmentation results achieved by this method are superior to those obtained by Top-down and Bottom-up method alone. Even in these parts where the backgrounds are variable and the bodies are movable, the object can still be well segmented.关键词
图像分割/Top -down/对象基元/多分辨率分析/强制最小技术/标记控制的分水岭Key words
Image segmentation/Top-down/Class-specific fragment/Multi-resolution analysis/Minimal imposition technology/Marker-controlled watershed分类
信息技术与安全科学引用本文复制引用
王燕,马燕,李顺宝..结合Top-down和Bottom-up准则的有效图像分割方法[J].计算机应用与软件,2012,29(1):260-263,4.基金项目
上海师范大学校基金项目(SK201028). （SK201028）
