Intravascular optical coherence tomography intravascular wall contour automatic identification method

A technology of optical coherence tomography and automatic recognition, which is applied in the field of automatic recognition of lumen contours, can solve problems such as difficulties in the recognition of lumen contours, and achieve low signal-to-noise ratio effects

Active Publication Date: 2020-01-21
TIANJIN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a fully automatic recognition method for the lumen contour of an IV-OCT vascular image, to overcome the problem of the distance between the guide wire and the catheter in the process of identifying and segmenting the lumen contour of the existing IV-OCT blood vessel image. It is difficult to identify the extracted lumen contour because the lumen is too close, affected by residual blood, or the lumen contour is too complex

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  • Intravascular optical coherence tomography intravascular wall contour automatic identification method
  • Intravascular optical coherence tomography intravascular wall contour automatic identification method
  • Intravascular optical coherence tomography intravascular wall contour automatic identification method

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[0045] 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 and illustrating the present invention, and are not intended to limit the present invention.

[0046] Such as figure 1 As shown, the lumen outline automatic recognition method of a kind of IVOCT blood vessel image that the present invention proposes comprises the following steps:

[0047]The present invention provides a fully automatic recognition method for lumen contours of IV-OCT blood vessel images based on morphological direction and area feature extraction, and the present invention overcomes the existing processes of lumen contour recognition and segmentation of IV-OCT blood vessel images In this method, because the guide wire and catheter are too close to the vessel lumen, or the lumen outline is too complex, it is difficult to identify the ...

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Abstract

The invention relates to an intravascular optical coherence tomography intravascular wall contour automatic identification method. The method comprises the following steps: (1) preprocessing an original image Ori; (2) identifying the inner contour of the blood vessel wall, wherein the method comprises the following steps: step 1, carrying out corrosion operation; 2, sorting the areas; 3, carryingout morphological direction and area detection; 4, judging whether a guide wire exists or not; 5, identifying and correcting the guide wire; and 6, reconstructing an incomplete contour.

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, and in particular to a tube of IV-OCT vascular images based on morphological direction feature extraction. A fully automatic identification method for cavity contours. Background technique [0002] Intravascular optical coherence tomography (IV-OCT) is a catheter-based examination that utilizes near-dark external light to capture in vivo vessel wall microstructure at ten times the resolution of intravascular ultrasound (IVUS) high-resolution imaging. The contour information of the vessel lumen has great application value in evaluating the degree of stenosis of the vessel, obtaining the best position for stent implantation, and evaluating the adherence of the stent. Therefore, the accurate identification and recognition of the contour of th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/136G06T7/62G06T5/30G06T5/00
CPCG06T5/002G06T5/30G06T7/0012G06T2207/10101G06T2207/20032G06T2207/30101G06T7/136G06T7/62
Inventor 丁振扬刘铁根赵会硕何滨陶魁园赖天铎
Owner TIANJIN UNIV
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