True-color dual-light night vision device system and its realization method

Abstract

The true-color dual-light night vision system includes a front-end common light path optical device and a rear-end optical device. The rear-end optical device includes an infrared imaging unit, a color image imaging unit and an image fusion unit; the light received by the front-end optical path optical device It enters the infrared imaging unit through the infrared spectroscopic sheet; after passing through the infrared spectroscopic sheet, the light passes through the rear group of visible light objective lenses, and is enhanced by means of red, green, and blue spectroscopic splitting to form a color image. The implementation method of the true-color dual-light night vision device includes: collecting long-wave infrared and visible light image data; processing the image data, and fusing them to obtain a target image. The true-color dual-light night vision device system and its implementation method inherit the advantages of long-wave infrared and visible light grayscale image fusion, taking into account the imaging advantages of visible light band on the texture and color of the scene and the imaging advantages of long-wave infrared on target contrast, making night vision The instrument can perform imaging with high contrast, texture definition and high color reproduction at night.

Description

technical field [0001] The present invention relates to the technical field of dual-light night vision, and more specifically, to a true-color dual-light night vision system and an implementation method. Background technique [0002] At present, pure visible light or long-wave infrared single-band night vision devices are relatively common. Although the technology of night vision devices fused with visible light and infrared is not very mature, it has also been studied in some domestic universities and scientific research institutions. [0003] However, the main problems at present are: 1) They are all grayscale image display or false color display, without true color display, the target color information is lost, which does not conform to the habit of human eyes; 2) The dual-light fusion night vision device adopts dual lenses Realize imaging, so that when observing close-range targets, due to the existence of parallax, the fused image will appear virtual. Even if the algori...

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Problems solved by technology

[0003] However, the main problems at present are: 1) They are all grayscale image display or false color display, without true color display, the target color information is lost, which does not conform to the habit of human eyes; 2) The dual-light fusion night vision device adopts dual lenses Realize imaging, so that when observing close-range targets, due to the existence of parallax, the fused image will appear virtual. Even if the algorithm is used to eliminate it, the timeliness of the algorithm cannot meet the observation requirements of real-time display, which affects the sense of the human eye

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