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Multispectral three-dimensional vein imaging system

A vein imaging and multi-spectral technology, applied in the field of multi-spectral three-dimensional vein imaging systems, can solve the problems of few successful examples of miniaturization and miniaturization, low integration, and insufficient information, and achieve convenient medical positioning Veins, outlines, and overlapping effects

Active Publication Date: 2019-04-05
NANJING UNIV OF SCI & TECH
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Problems solved by technology

[0003] The traditional multi-spectral imaging system has the disadvantage of low integration, and there are few successful examples of miniaturization and miniaturization; the vein imaging system also has the problem that the distribution of veins in the near-infrared image is not obvious; the traditional system uses a single camera and a single Band imaging directly acquires vein images, which has the problem that the contours of vein images are not obvious, the information is not rich, and depth information cannot be obtained from them.

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  • Multispectral three-dimensional vein imaging system

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Embodiment

[0119] The invention proposes a multispectral three-dimensional vein imaging system. The three-dimensional information of the vein image is obtained based on the stereo matching algorithm of the vein image in the low texture area; the multispectral information of the vein image is obtained by the multispectral vein image fusion algorithm based on the local feature residual and statistical matching.

[0120] 1. Multispectral 3D vein imaging system

[0121] The multi-spectral three-dimensional vein imaging system built by the present invention can obtain high-quality hand vein depth images, and realize the overlapping of the imaging field of view and the projection field of view; the design process of the multi-spectral three-dimensional vein imaging system is as follows: figure 1 shown.

[0122] 1) Band optimization

[0123] The vein image acquisition device in the present invention is two CCD cameras. In order to improve the stability of the system, reduce the influence of t...

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Abstract

The invention discloses a multispectral three-dimensional vein imaging system, and the system comprises two CCD cameras which are used for collecting vein images at the same time through software triggering in two different wave bands; The image enhancement and segmentation module is used for performing image enhancement and image segmentation processing on the two images to obtain segmented images; The vein image stereo matching module is used for performing image stereo matching on the segmented image to obtain a vein coloring depth map; And the multispectral vein image fusion module is usedfor processing a low-frequency coefficient and a high-frequency coefficient obtained by wavelet transform decomposition of the acquired dual-band vein image by using different criteria based on the local characteristic residual error and statistical matching so as to determine a high-frequency fusion coefficient, and then obtaining a fused vein image through wavelet inverse transformation. According to the invention, veins can be quickly and accurately found, medical positioning of the veins is facilitated, and effective acupuncture is carried out.

Description

technical field [0001] The invention belongs to the field of biomedical imaging and auxiliary diagnosis and treatment, and in particular relates to a multispectral three-dimensional vein imaging system. Background technique [0002] In the field of biomedical imaging and auxiliary diagnosis and treatment, the acquisition and analysis of multispectral medical image information is of great significance for the location and qualitative of suspicious lesions, which will help to achieve early diagnosis and treatment of related diseases and reduce the rate of misdiagnosis. Vein imaging technology can quickly and accurately find veins, and then project the vein images back to the corresponding veins on the back of the hand, which is convenient for medical positioning of veins and effective acupuncture. [0003] The traditional multi-spectral imaging system has the disadvantage of low integration, and there are few successful examples of miniaturization and miniaturization; the vein...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/12G06T7/33G06T5/50
CPCG06T5/50G06T7/0012G06T7/12G06T7/33G06T2207/10004G06T2207/30101
Inventor 柏连发韩静张毅葛锦洲郭恩来王霄雯王旭孙岩张乃川施润
Owner NANJING UNIV OF SCI & TECH