A dual-band high-low resolution cooperative target recognition device

Abstract

The invention discloses a dual-waveband high-low resolution collaborative target identification device. A main feature module comprises two sets of self-adaption liquid crystal light adjusters, a collimation total reflection light splitting device, a visible light high resolution imaging system, an infrared low resolution imaging system and a digital image processing unit. The dual-waveband high-low resolution collaborative target identification device conducts primary processing on optical signals in an optical receiving system, and the computation of the digital image processing unit is effectively reduced. According to the device, the collaborative imaging process of cone cells and rod cells of a human eye is simulated, a visible light high resolution image signal and an infrared low resolution image signal are respectively output to the same target at the same time, priority processing is conducted on the infrared low resolution image signal, after a target object is acquired, the visible light high resolution image signal is switched in real time, the identification speed of machine vision to the target is improved, and meanwhile the observation quality of the target object is guaranteed. According to the device, active liquid crystal materials are used as a light intensity adjuster at the first time, the optical transmittance is controlled through the activity liquid crystal materials, the two imaging systems are respectively provided with one self-adaption liquid crystal light adjuster, and the exposure quality of the two sets of images can be guaranteed simultaneously at the same light condition.

Description

[0001] Technical field: [0002] The invention relates to a dual-channel cooperative fast identification optical device, in particular to a visible light high-resolution-near-infrared low-resolution cooperative optical imaging device, which belongs to the field of intelligent robot vision technology. [0003] Background technique: [0004] Machine rapid recognition technology occupies an important position in machine vision, and is also the core technology of intelligent robots. Quality sustainable observation. Target rapid recognition optical devices are widely used in security detection systems, intelligent robot vision systems, night vision systems, and ground target tracking systems. [0005] At present, the optical signal receiving device used in the machine vision system has a single resolution, and is divided into visible light machine vision device and infrared machine vision device according to the light wave band that needs to be processed in the specific application...

AI Technical Summary

Problems solved by technology

A single resolution restricts the later signal processing of the optical system. When a high-resolution imaging detector is selected to receive the image signal, more effective features of the target can be obtained and the accuracy of recognition can be improved, but at the same time, the image processing will be greatly increased. The amount of calculation of the system causes the delayed acquisition of image information; if a low-resolution imaging detector is used to receive the image signal, the opposite will happen. The image acquisition speed increases, but the accuracy of image details and feature acquisition decreases.

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