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A method for identifying branch vessels in intravascular optical coherence tomography

A technology of optical coherence tomography and blood vessels, which is applied in image analysis, image enhancement, image data processing, etc., and can solve problems such as branch blood vessel identification and segmentation identification difficulties

Active Publication Date: 2022-04-01
TIANJIN UNIV
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Problems solved by technology

[0014] The purpose of the present invention is to provide a branch vessel recognition method of IV-OCT blood vessel images, to overcome the time-consuming branch vessel recognition and segmentation of existing manual IV-OCT blood vessel images and the branch vessel recognition of automatic IV-OCT blood vessel images and segmentation appear to be difficult to identify

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  • A method for identifying branch vessels in intravascular optical coherence tomography
  • A method for identifying branch vessels in intravascular optical coherence tomography
  • A method for identifying branch vessels in intravascular optical coherence tomography

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[0042] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the described specific embodiments are only for explaining the present invention, and are not intended to limit the present invention.

[0043] Such as figure 1 As shown, a kind of branch blood vessel automatic identification method of IVOCT blood vessel image proposed by the present invention comprises the following steps:

[0044] The present invention provides a fully automatic lumen contour recognition method for IV-OCT vascular images based on centroid features and distance transformations. The identification and segmentation of branch vessels in IV-OCT vascular images is difficult to identify. In the whole recognition process, the present invention first uses the method based on morphology and adaptive threshold value binarization to segment the blood vessel contour, and then uses the distance transf...

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Abstract

The present invention relates to a method for identifying branch vessels of intravascular optical coherence tomography, comprising the following steps: (1) extracting the outline of blood vessels from the original image Ori, the method is as follows: the first step: image enhancement and adaptive binarization; the second step The second step: connected domain processing; the third step: interpolation and smoothing; (2) branch vessel identification, the method is as follows: the first step: coordinate transformation; the second step: the determination of the center of the main vessel; the third step: the centroid position and Determination of the centroid moment; Step 4: Judgment of the existence of branch vessels; Step 5: Calculation of the maximum radius of the main vessel; Step 6: Identification of branch vessel outlines and boundary points.

Description

technical field [0001] The present invention relates to endoscopic optical coherence tomography (Intravascular Optical Coherence Tomography, IV-OCT) covering the field of endoscopic OCT imaging such as cardiovascular and cerebrovascular, especially relates to an IV-OCT vascular image based on centroid feature and distance transformation method Identification method of branch vessels. Background technique [0002] Intravascular optical coherence tomography (IV-OCT) is a catheter-based inspection method that uses near-infrared light to obtain in vivo images of the microstructure of blood vessel walls at ten times the resolution of intravascular ultrasound (IVUS). High resolution imaging. The branch vessel information has great application value for the fluid simulation and numerical analysis of the vessel model, as well as the registration of different types of vessel images. Therefore, accurate identification and identification of branch vessels is particularly important in...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/136G06T7/149G06T7/155G06T7/187G06T7/66G06T5/40G06T5/30G06T5/00
CPCG06T7/0012G06T7/136G06T7/149G06T5/002G06T5/40G06T7/66G06T7/155G06T7/187G06T5/30G06T2207/20081G06T2207/20032G06T2207/20041G06T2207/30101G06T2207/30204
Inventor 丁振扬朱丰裕刘铁根商明健胡景淇李清瑞刘琨江俊峰于音
Owner TIANJIN UNIV