Method and apparatus for segmenting pulmonary vessels from lung mask images
A blood vessel and lung technology, applied in image analysis, image enhancement, image data processing, etc., can solve the problems of discontinuous blood vessels, weak response at bifurcation junctions, etc., and achieve the effect of improving the effect and improving the accuracy
Active Publication Date: 2018-10-30
NEUSOFT CORP
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In this way, the response at the bifurcation connection of pulmonary vessels is weak, and it is easy to cause blood vessel discontinuity after thresholding segmentation
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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.
[0024] figure 1 It is a schematic flowchart of a method for segmenting pulmonary vessels from a lung mask image proposed by an embodiment of the present invention. The method for segmenting pulmonary vessels from a lung mask image includes:
[0025] S101: Calculate the response value of each voxel in the multiple voxels in the lung mask image at different vessel scales in...
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The invention provides a method and device for segmenting a lung blood vessel in a lung mask image. The method for segmenting the lung blood vessel in the lung mask image includes calculating a response value of a blood vessel similarity function under different blood vessel scales of each of a plurality of voxels in the lung mask image in a blood vessel scale range, and using the response value as a lung vessel image of each voxel under different blood vessel scales; obtaining the target blood vessel scale of each voxel in the lung mask image, and obtaining a lung blood vessel image corresponding to the target blood vessel scale of each voxel as a target lung blood vessel image of each voxel; and fusing the target lung blood vessel images of the plurality of voxels to obtain a fused target lung blood vessel image. Through the method for segmenting the lung blood vessel in the lung mask image, accuracy of segmenting the lung blood vessel in the lung mask image can be effectively improved, and an effect of segmenting the lung blood vessel in the lung mask image can be improved.
Description
technical field [0001] The invention relates to the technical field of segmenting pulmonary vessels, in particular to a method and device for segmenting pulmonary vessels from a lung mask image. Background technique [0002] Accurate pulmonary vascular segmentation is an important step in the lung computer-aided detection and diagnosis (CAD) system. In the automatic identification and detection of pulmonary embolism, pulmonary vascular tissue needs to be extracted first to narrow the scope of lesion detection. In the early detection and diagnosis of lung cancer, it is removed Pulmonary vessel interference is used to reduce false positives in pulmonary nodule detection, and the distribution of pulmonary vessels is used to guide lung lobe segmentation in surgical navigation. However, the pulmonary blood vessels present an intricate tree structure, containing 23 branches in the lung, and the diameter of the vessels varies from 20 micrometers to 15 millimeters. On CT images, th...
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IPC IPC(8): G06T7/10
CPCG06T2207/10081G06T2207/20221G06T2207/30061G06T2207/30101
Inventor 赵大哲耿欢栗伟任福龙周庆华王军搏
Owner NEUSOFT CORP