Method and device for vein localization based on binocular camera

Abstract

The invention relates to a binocular camera based vein positioning method and device. The binocular camera based vein positioning device comprises at least one infrared light source, a first infrared camera, a second infrared camera, a digital image processing unit and a projection display unit; the infrared light source is used for irradiating tested objects; a certain distance is formed between the first infrared camera and the second infrared camera; the first infrared camera and the second infrared camera are used for collecting vein blood vessel images of the corresponding tested objects; the digital image processing unit is used for performing splicing and cutting and scaling processing on the vein blood vessel images collected by the first infrared camera and the second infrared camera; the projection display unit is used for projecting the processed vein blood vessel images to the surfaces of the tested objects. According to the binocular camera based vein positioning method and device, the vein blood vessel images are collected through the binocular cameras, a beam splitter mirror in the traditional method is omitted, the splicing and cutting and scaling processing is performed on the images collected by the two cameras, and accordingly the vein blood vessel images which are matched with the actual blood vessel distribution of the tested objects can be projected and displayed on the surfaces of the tested objects so as to assist the medical personnel to timely and accurately find blood vessels and the medical operation is convenient.

Description

technical field [0001] The present invention relates to venous vessel auxiliary positioning technology, more specifically, to a vein locating method and device based on binocular imaging. Background technique [0002] Intravenous injection and intravenous blood collection and blood transfusion are one of the important measures for rescuing and treating patients, and are also a very common medical method. However, for some patients with inconspicuous veins, such as newborns, children, obese people, and people of certain races, it is difficult to find the exact location of the veins even for skilled nurses, so it often takes multiple operations to get them. It can be injected successfully, which will increase the pain of the patient. What's more, in some urgent situations, every delay can have serious consequences. [0003] Therefore, medical aids that can acquire images of veins and blood vessels in real time and display and position blood vessels have been developed. Trad...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of the beam splitter 160, both the reflected light and the projected light are attenuated, resulting in a higher brightness for projection, while the brightness and signal-to-noise ratio of the infrared image collected by the camera 130 decrease.

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