Automatic boundary extraction of ultrasonic breast tumor image
Hai‐Ping Cheng · Jisuanji gongcheng yu sheji · 2010
To solve the problem of high requirements on initial contour for traditional Snake model,and make the extraction of cupped boundary more accurate,a segment algorithm of dual-threshold and an improved Snake model are proposed respectively.Firstly,a nearby contour is obtained,based on the algorithms of dual-threshold segmentation,morphological operation and filtering technique.Then,a more accurate contour is tracked by the improved Snake model.Since the energy definition of this model is adjusted,cupped boundary can also be traced accurately.Twenty experiments on boundary extraction from breast ultrasonic images have proved that this proposed method can effectively extract the boundary of breast tumor,and realize the auto-segmentation of ultrasonic tumor image.