关键词: Gibbs 随机场, 主动轮廓, 图像分割

Abstract:

A method dealing with correct location of the borders in the epi-metaphyseal regions of interest is described.In
terms of the features of hand X-ray images，the Gibbs random field is used as an initial method to segmentation interest of
the region，the well segmented bone structures are obtained.For contrast of the gray value of cartilage and soft tissue are
small，Gibbs random does not prove to be adequate in the correct outline of cartilage in the epi-metaphyseal area.So the
next step the active contours serving as a post-segmentation edge location technique is applied and soft tissue and cartilage
will be separated.The correct location on the edge of the bone will be obtained.Experiments have proved that meaningful improvement
in the epiphysis of the bone at the bottom of the convex region have been obtained.At the same time，such a
joint approach has a strong immune to noise.

Key words: Gibbs random field, snake model, image segmentation