Pulmonary nodule segmentation method based on Hession matrix and three-dimensional shape indexes
A technology of three-dimensional shape and pulmonary nodules, applied in the field of medical image processing, can solve problems such as low sensitivity, detection accuracy and efficiency that cannot meet clinical needs, and affect the accuracy of nodule detection
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[0108] refer to figure 1 , the main process includes: CT image preprocessing: anisotropic filter denoising, and sequential lung parenchyma segmentation, spherical filter construction: Hession matrix eigenvalue calculation, 3D shape exponential function construction, spherical filter construction, three-dimensional Pulmonary nodule segmentation: Combined with region-growing confidence connections, 3D lung nodule segmentation and other steps. The specific implementation of the inventive method is as follows:
[0109] A. Construction of three-dimensional lung parenchyma region volume data
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