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Vein distribution display method and device

A technology of vein distribution and display method, applied in the field of image processing, can solve the problems of insufficient contrast between skin and blood vessels, unable to fully retain the skin color of the hand, etc., to solve the effect of image loss or inability to completely restore the original color of the epidermis

Active Publication Date: 2018-03-02
GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI +1
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Problems solved by technology

In this way, a new problem arises: the commonly used visible light and infrared image fusion technology cannot completely preserve the color of the skin on the hand, and the contrast between the skin and blood vessels is still not obvious enough
This method is also mostly used for preliminary extraction of blood vessel locations, but refinement is still required to remove noise

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  • Vein distribution display method and device
  • Vein distribution display method and device
  • Vein distribution display method and device

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Embodiment Construction

[0065] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0066] see figure 1 , the present application provides a method for displaying vein distribution, said method comprising the following steps:

[0067] S11: collecting infrared images and visible light images of the parts to be detected;

[0068] S12: Preprocessing the infrared image to remove noise and enhance contrast to obtain an intermediate image;

[0069] S13: Calculate the maximum curvature of the intermediate image, and filter out noise points to obtain a feature point image containing all vessel feature points, wherein the result image includes the vessel extension direction corresponding to each vessel feature point ;

[0070] S14: Based on the blood vessel extension direction, perform connection processing on the blood ves...

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Abstract

The invention discloses a vein distribution display method and device. The method comprises steps that an infrared image and a visible light image of a to-be-detected portion are acquired; the infrared image is pre-processed to acquire an intermediate image; a curvature maximum of the intermediate image is solved, noise points are filtered, and a characteristic point image is acquired; based on the blood vessel extension direction, blood vessel characteristic points of the characteristic point image are connected to acquire a blood vessel branching image; blood vessel branches of the blood vessel branching image are connected to form the vein network to construct a center line of human body blood vessels, and burrs on the center line are removed to acquire the center line image after processing; a target blood vessel area of the center line image is determined, and the visible light image and the part corresponding to the target blood vessel area are filled with blood vessel color. Themethod is advantaged in that problems of loss of images displayed by a traditional vein display system and incapability of completely recovering the skin color can be solved.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a vein distribution display method and device. Background technique [0002] The distribution of veins uses infrared imaging to enhance the display of subcutaneous venous vessels. This technique can significantly increase the success rate of the puncture. The display effect of the infrared image is similar to the grayscale image, which loses the true color of the skin. Therefore, it is necessary to combine the color information of the visible light image with the vein distribution in the infrared image to improve the display effect. In this way, a new problem arises: the commonly used visible light and infrared image fusion technology cannot completely preserve the color of the skin on the hand, and the contrast between the skin and blood vessels is still not obvious enough. Therefore, it is necessary to extract the position and width information of the blood vessel fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00G06T7/11G06T7/13G06T7/136G06T7/33G06T11/40
CPCG06T7/11G06T7/13G06T7/136G06T7/33G06T11/40G06T2207/30101G06T5/77G06T5/70
Inventor 邸思朱申予金建袁海
Owner GUANGZHOU INST OF ADVANCED TECH CHINESE ACAD OF SCI
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