Image segmentation method and device, and method for judging image inversion and distinguishing front side and back side of sternum
An image and search method technology, applied in the field of image processing, can solve the problems of uneven edges of segmentation results, trapped in local extreme values, and time-consuming implementation, and achieve the effects of improving adaptability, improving calculation accuracy, and avoiding errors.
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[0042] Such as figure 1 As shown, the present invention mainly discloses an image segmentation method. First, the input image is preprocessed; then, the contour of the target area is searched, and the search result of the contour is checked. The contour here refers to the initial segmentation. Finally, according to the inspection results, extract the target area. This method can be applied not only to the segmentation of lung regions in chest radiographs, but also to segmentation of other targets with relatively fixed gray scales and shapes. The main technical solutions of the present invention will be described in detail below from various aspects. Among them, the concept of a feature point refers to a point where the boundary of the target area turns or is excessively large.
[0043] The first aspect is the pretreatment process.
[0044] The above preprocessing process mainly includes: mapping the gray level of the image to the same gray level interval, and performing contrast e...
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