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公开(公告)号：US10818027B2
公开(公告)日：2020-10-27
申请号：US16077523
申请日：2017-05-24
Inventor： Shoujun Zhou , Baolin Li , Cheng Wang , Pei Lu
Abstract: A method and an apparatus for extracting a centerline of a tubular object are provided. The method includes: preprocessing an image of the tubular object whose centerline is to be extracted to obtain an enhanced image, acquiring a gradient vector flow field of the enhanced image; acquiring a deformation force parameter based on the gradient vector flow field and extracting ridge points of the tubular object from the enhanced image, establishing a regularized open curve deformable model; if a deformation end condition is not met, deforming and processing one ridge line segment in the initial ridge line segment list based on the model to obtain a centerline segment of the tubular object, updating the initial ridge line segment list based on the ridge line segment traversed; if the deformation end condition is met, generating a centerline of the tubular object based on the centerline segments.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20200242758A1
公开(公告)日：2020-07-30
申请号：US16632579
申请日：2017-07-26
Applicant: Shenzhen Institutes of Advanced Technology
Inventor： Shoujun Zhou , Baochang Zhang , Baolin Li , Cheng Wang , Pei Lu
Abstract: The present invention is applicable to the technical field of medical image processing, and provides a method, an apparatus, a device, and a storage medium for extracting a cardiovascular vessel from a CTA image. The method comprises: performing erosion operation and dilation operation on image data successively via a preset structural element to obtain a structure mask; performing a slice-by-slice transformation on the plane of section images of the structural mask to acquire the first ascending aortic structure in the structural mask, and acquiring an aortic center position and an aortic radius in the last slice of the plane of section image of the said structural mask; establishing a binarized sphere structure according to the aortic center position and the aortic radius, and synthesizing a second ascending aorta structure by combining the first ascending aorta structure with the structure mask and the binarized sphere structure. The present invention realizes extracting shapes of ascending aorta and root aortic sinus, so that the aortic structure and morphology can be accurately visualized, thereby greatly improving the level and ability of medical imaging researches to solve clinical issues.
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3.发明申请公开(公告)号：US20190034750A1
公开(公告)日：2019-01-31
申请号：US16044662
申请日：2018-07-25
Applicant: Shenzhen Institutes of Advanced Technology
Inventor： Shoujun Zhou , Baochang Zhang , Baolin Li , Cheng Wang , Pei Lu
Abstract: Disclosed are a method, an apparatus, a device and a storage medium for extracting a cardiovisceral vessel from a CTA image, including: performing corrosion operation and expansion operation on an image data successively via a preset structural element to obtain a structure template, wherein the image data is a coronary angiography image after a downsampling processing, and the structure template is a structure excluding a pulmonary region; performing a transformation in layer-by-layer on slice images of the structure template to acquire a first ascending aorta structure in the structure template, and acquiring an aorta center coordinate and an aorta radius in the last layer of slice image of the structure template; and establishing a binarized spherical structure according to the aorta center coordinate and the aorta radius, and synthesizing a second ascending aorta structure by combining the first ascending aorta structure with the structure template and the binarized spherical structure.
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4.发明授权公开(公告)号：US10769477B2
公开(公告)日：2020-09-08
申请号：US16044662
申请日：2018-07-25
Applicant: Shenzhen Institutes of Advanced Technology
Inventor： Shoujun Zhou , Baochang Zhang , Baolin Li , Cheng Wang , Pei Lu
Abstract: Disclosed are a method, an apparatus, a device and a storage medium for extracting a cardiovisceral vessel from a CTA image, including: performing corrosion operation and expansion operation on an image data successively via a preset structural element to obtain a structure template, wherein the image data is a coronary angiography image after a downsampling processing, and the structure template is a structure excluding a pulmonary region; performing a transformation in layer-by-layer on slice images of the structure template to acquire a first ascending aorta structure in the structure template, and acquiring an aorta center coordinate and an aorta radius in the last layer of slice image of the structure template; and establishing a binarized spherical structure according to the aorta center coordinate and the aorta radius, and synthesizing a second ascending aorta structure by combining the first ascending aorta structure with the structure template and the binarized spherical structure.
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5.发明授权公开(公告)号：US11816840B2
公开(公告)日：2023-11-14
申请号：US16632579
申请日：2017-07-26
Applicant: Shenzhen Institutes of Advanced Technology
Inventor： Shoujun Zhou , Baochang Zhang , Baolin Li , Cheng Wang , Pei Lu
CPC classification number: G06T7/11 , G06T5/30 , G06T7/0012 , G06T7/262 , G06V10/34 , G06T2207/20024 , G06T2207/30104 , G06T2211/404
Abstract: A method, an apparatus, a device, and a storage medium for extracting a cardiovascular vessel from a CTA image, the method including the steps of: performing erosion operation and dilation operation on image data successively via a preset structural element to obtain a structure mask; performing a slice-by-slice transformation on the plane of section images of the structural mask to acquire the first ascending aortic structure in the structural mask, and acquiring an aortic center position and an aortic radius in the last slice of the plane of section image of the said structural mask; establishing a binarized sphere structure according to the aortic center position and the aortic radius, and synthesizing a second ascending aorta structure by combining the first ascending aorta structure with the structure mask and the binarized sphere structure.
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公开(公告)号：US20200175711A1
公开(公告)日：2020-06-04
申请号：US16077523
申请日：2017-05-24
Inventor： Shoujun Zhou , Baolin Li , Cheng Wang , Pei Lu
Abstract: A method and an apparatus for extracting a centerline of a tubular object are provided. The method includes: preprocessing an image of the tubular object whose centerline is to be extracted to obtain an enhanced image, acquiring a gradient vector flow field of the enhanced image; acquiring a deformation force parameter based on the gradient vector flow field and extracting ridge points of the tubular object from the enhanced image, establishing a regularized open curve deformable model; if a deformation end condition is not met, deforming and processing one ridge line segment in the initial ridge line segment list based on the model to obtain a centerline segment of the tubular object, updating the initial ridge line segment list based on the ridge line segment traversed; if the deformation end condition is met, generating a centerline of the tubular object based on the centerline segments.
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