Vascular skeleton line reconstruction and precise vessel diameter calculation method

A calculation method and skeleton line technology, which are applied in the fields of biomedical engineering and computer vision, can solve the problems of easy formation of sawtooth, existence of sawtooth, and the skeleton line is easy to deviate from the center line, so as to achieve the effect of accurate blood vessel model.

Active Publication Date: 2015-01-28
安徽紫薇帝星数字科技有限公司
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Problems solved by technology

[0006] 2) The skeleton line is easy to deviate from the center line:
[0008] 3) The skeleton line is discontinuous and there are jagged edges:
[0009] The skeleton line obtained by this method is based on the CT sequence images, and the skeleton line formed must be based on the integer coordinates of the image layer,

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  • Vascular skeleton line reconstruction and precise vessel diameter calculation method
  • Vascular skeleton line reconstruction and precise vessel diameter calculation method
  • Vascular skeleton line reconstruction and precise vessel diameter calculation method

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Embodiment Construction

[0068] 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.

[0069] The present invention provides a method for reconstructing the skeleton line of a blood vessel and calculating a precise diameter. The method is iteratively refined step by step to finally obtain the precise pipe diameter and skeleton line (central line). The present invention can be used for heart vessels, Pulmonary trachea, and liver blood vessels, etc. like figure 2 As shown, it includes the following steps:

[0070] S1. Thinning the binary blood vessel image in the CT image to form a preliminary skeleton line. In this embod...

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Abstract

The invention provides a vascular skeleton line reconstruction and precise vessel diameter calculation method which includes the following steps: refining two-value vascular images in a CT (Computerized Tomography) image to form an initial skeleton line; dividing the vascular skeleton line into separate branches, and separating the skeleton line to form independent vascular sections; detecting the obtained branched vascular skeleton lines to remove surplus skeleton lines; smoothing all the obtained branched vascular skeleton lines to obtain precise center lines; outputting the smoothed vascular skeleton lines. The vascular skeleton line reconstruction and precise vessel diameter calculation method divides the initial skeleton line into separate branches to remove surplus skeleton lines and then smoothes the surplus skeleton lines, the obtained skeleton lines are located at the vascular center, and therefore a vascular model is made more accurate.

Description

technical field [0001] The invention relates to the technical fields of biomedical engineering and computer vision, in particular to a method for reconstructing a vascular skeleton line and calculating an accurate diameter. Background technique [0002] In morphology, the centerline of an object is a description of the shape of an object after dimensionality reduction. It can not only combine the outline and area information of the object, but also reflect the important visual clues of the object; The linear connected structure is transformed into the abstract form of tree or graph, which facilitates the feature matching of objects. Centerlines represent objects with thin curved lines consistent with the connectivity and topology of the original object. [0003] At present, there is a method for obtaining the center line, which is the method adopted in K.Palágyi et al.'s "12-sub-iterative thinning algorithm for binary blood vessel images in CT images". This algorithm consis...

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Application Information

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IPC IPC(8): G06T7/00A61B6/03
CPCA61B6/03A61B6/504A61B6/5235G06T7/0012G06T7/62G06T2207/10081G06T2207/30101
Inventor 王翊房斌钟南昌董家鸿谭立文李颖
Owner 安徽紫薇帝星数字科技有限公司
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