Demoscopy focus automatic segmentation method

Abstract

The invention relates to a demoscopy focus automatic segmentation method in a medical image processing technology. The method includes the following steps: detection and extraction of a focus area; preliminary segmentation of a focus area and a background area in an image and extraction of the shape, position and contour of the focus area; segmentation of a mobile contour model; and construction of an initial curve of the mobile contour model according to the contour of the focus area and establishment of a corresponding energy functional. According to a level set method and a curve evolution theory, a curve capable of meeting minimum of the energy functional is obtained through partial-differential solution and the focus area is segmented automatically from the image. The method performs automatic detection and segmentation on the focus area according to the difference of the demoscopy focus area and the surrounding area; the method is accurate and high in efficiency in focus segmentation, great in practicality, dispensed with manual interruption and capable of assisting dermatology doctors to perform more accurate focus analysis and diagnosis.

Description

technical field [0001] The invention relates to the technical field of medical image processing, in particular to a method for automatically segmenting dermoscopic lesions. Background technique [0002] Dermoscopy, also known as skin surface light transmission microscope, is a non-invasive microscopic image analysis technique for observing the fine structure and pigments below the surface of living skin. It can observe the image structures and features invisible to the naked eye, such as the lower part of the epidermis, the papillary dermis, and the deep dermis. These features have a special and relatively clear correspondence with the changes in skin histopathology. Based on these correspondences, the dermoscopic diagnosis is determined. sensitivity and specificity. The latest research also shows that the specificity of dermoscopy in the diagnosis of malignant melanoma can reach 98%, even higher than clinical diagnosis. Therefore, dermoscopy is a fairly convenient, non-in...

AI Technical Summary

Problems solved by technology

[0006] In view of the shortcomings of the existing dermoscopic lesion segmentation that requires manual intervention and the segmentation is not accurate enough, the technical problem to be solved by the present invention is to provide a computer-aided automatic segmentation method for dermoscopic lesions

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