Gait outline extraction method
A technology of contour extraction and extraction method, which is applied in the direction of instruments, character and pattern recognition, computer components, etc., can solve problems affecting the extraction effect of gait contours, and achieve improved clarity, distinguishability, and good localization effects Effect
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[0010] This specific implementation adopts the following technical solution: Its extraction method is: express the level set function in a space-time discrete grid, first construct the SDF function, and initialize it to zero, and finally solve the numerical solution of partial differential equations. Re-initialize with the signed distance function of the curve and determine whether the value is stable, if it is to stop the iteration, otherwise repeat the above process.
[0011] The principle of this specific implementation is: a new variational level set model based on the CV model, which combines the edge and region information of the image; for the external energy term, the original CV model energy is retained Based on the item, the gradient value of the image before and after segmentation is added, and a new model function can be obtained.
[0012] This specific embodiment has a better localization effect on the image boundary, and combines the edge of the image with the reg...
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