An Improved Image Segmentation Algorithm CT Superpixel Grid Using Active Contour

The traditional CT image segmentation algorithm is easy to ignore contour initialization, which leads the problem of long time consuming and low accuracy. A superpixel mesh improved using active was proposed. gridding carried out first; secondly, on basis gridding, region growth criterion by processing, graph established, edge salient calculated based graph, target obtained as initial contour; finally, Mumford-Shah model in improved; energy functional constructed transformed into symbol distance function. results show that proposed takes less superpixels, accuracy calculation high, correct classification coefficient high 0.9, always higher than 90%, has superiority.