A method and system for three-dimensional reconstruction of contour lines of multiple X-ray rotating images

Abstract

The embodiment of the present application discloses a method and system for three-dimensional reconstruction of contour lines of multiple X-ray rotating images. The first two-dimensional matrix corresponding to the contour lines of the target images is determined according to the obtained contour lines of the target images; The domain traversal tracking method sequentially stores the contour points in the first two-dimensional matrix to obtain the second two-dimensional matrix; according to the target image contour lines at different angles and the second two-dimensional matrix corresponding to the target image contour lines at different angles, obtain A set of contour point coordinates of the contour line of the target image at different angles; matching the corresponding points in the contour point coordinate set to obtain the coordinates of the corresponding point of the rotated image of the target image; using the coordinate transformation matrix of the rotated image point to reverse the coordinates of the corresponding point of the rotated image Solve to obtain the three-dimensional coordinates of the contour points corresponding to the contour line of the target image. The coordinate information of the contour points is more comprehensive and the misdiagnosis is reduced through the orthogonal priority 8-neighborhood traversal tracking method and the pixel point equidistribution interpolation method.

Description

technical field [0001] The present application relates to the technical field of digital image recognition, and in particular to a method and system for three-dimensional reconstruction of contour lines of multiple X-ray rotating images. Background technique [0002] Power equipment X-ray inspection technology has been successfully applied in the non-destructive inspection of many substation equipment, such as GIS, dry-type transformers, voltage and current transformers, closing resistors, circuit breakers, isolating switches, load switches, etc. Since the application of this system, Many major defects of substation equipment have been found, resulting in very good economic benefits, and this system has great potential for promotion. [0003] The existing X-ray detection technology for power equipment is to firstly perform digital image processing on the X-ray image to segment the background and power equipment in the image; then use edge detection technology to obtain the c...

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Problems solved by technology

[0005] This application provides a method and system for three-dimensional reconstruction of multiple X-ray rotational image contour lines to solve the problem of low detection efficiency in the prior art

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