Blood vessel center line automatic extraction method based on parallel structure detection and clustering
A technology of structure detection and automatic extraction, which is applied in image data processing, instrument, character and pattern recognition, etc., can solve the problems of high background complexity of coronary angiography images, lack of two-dimensional image information, and large amount of algorithm calculation. The effect of eliminating human interference
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[0025] The present invention will be further introduced below in conjunction with the accompanying drawings. attached figure 1 It is a flowchart of a method for automatically extracting blood vessel centerlines based on parallel structure detection and clustering, and specifically includes the following steps:
[0026] Step S101, input a two-dimensional X-ray contrast image f, and detect the positions and directions of all edge points in the contrast image. In the specific operation, the position of the edge point is obtained by detecting the maximum response sub-pixel position of the gradient operator in the Cartesian coordinate system:
[0027] f x 2 f xx + 2 f x f y f xy + f y 2 ...
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