Multispectral stereo imaging system

Abstract

The invention provides a multispectral stereo imaging system, consisting of two parts, that is, a visual information acquisition system and a visual information processing system, wherein the visual information acquisition system comprises a bracket, two identical multispectral cameras are installed on the bracket and are arranged to be aligned to each other on the same direction, and the opticalaxes are parallel to each other; the multispectral camera comprises a visible light near-infrared camera, a far-infrared camera and a film coated beam spectroscope; the visual information processing system comprises a visual processing computer, a single-chip microcomputer and a data transmission line, the visual processing computer is connected with the single-chip microcomputer through a data transmission line, and the single-chip microcomputer transmits collection start and collection termination signals; the single-chip microcomputer is connected with each camera through the data transmission line; and each camera is connected with the visual processing computer. The multispectral stereo imaging system provided by the invention utilizes the same optical path to simultaneously obtain multiple segments of spectral information, so that the shooting conditions are not limited to static scene conditions, the shooting distance and the illumination condition are not limited, and it is ensured that images are highly overlapped.

Description

technical field [0001] The invention belongs to the field of spectral imaging, and in particular relates to a multi-spectral stereoscopic imaging system. Background technique [0002] With the continuous development of imaging technology and visual sensor manufacturing process, various types of cameras have gradually entered our lives, and have a wide range of applications in transportation, manufacturing, security, inspection, document analysis, medical diagnosis, military and other fields . The most common vision sensors are visible light cameras, including visible light cameras that capture grayscale images and color cameras (RGB cameras) that capture color images. However, visible light is only a small part of the entire solar spectrum, so the information acquired by visible light cameras is relatively limited, and its acquisition conditions are relatively harsh. shoot. Therefore, there have been visual sensors that shoot invisible light in different bands, including ...

AI Technical Summary

Problems solved by technology

This kind of multispectral camera combines cameras with different spectrums to obtain multiple spectrum information in the scene at the same time. Poor image overlay accuracy

[0004] The second type of multispectral camera contains only one lens and one imaging component (that is, the same optical path is used)

This measurement method has the advantages of high efficiency, appropriate precision, simple system structure, and low cost. Its measurement distance can theoretically reach infinity, and it is suitable for the measurement of moving objects. However, the existing binocular stereo cameras only receive visible light. Information, cannot be used under harsh lighting conditions (such as night, strong light, foggy weather, etc.)

[0008] Therefore, the existing multispectral cameras do not involve the collection of far-infrared band information, and lack the ability to simultaneously acquire visible light, near-infrared and far-infrared information

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