Method for realizing anti-interference large visual field distance gating vehicle night vision

A technology for night vision and large field of view for automobiles, applied in the field of night vision, can solve the problems of noise accumulation in different night vision systems, interference, etc., to reduce interference, meet real-time processing, and improve night vision quality.

Active Publication Date: 2010-06-09
北京中科盛视科技有限责任公司
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[0011] In view of this, the main purpose of the present invention is to provide a method for realizing anti-jamming large field of view distance gating car night

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  • Method for realizing anti-interference large visual field distance gating vehicle night vision

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[0049] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail in conjunction with specific embodiments and with reference to the accompanying drawings. A description of the structural embodiment and method of the present invention is disclosed herein. It can be understood that the present invention is not intended to be limited to the specific disclosed embodiments, but the present invention can be implemented by using other features, element methods, and embodiments. Similar elements in different embodiments are usually labeled with similar numbers.

[0050] The method provided by the present invention for realizing the anti-interference large field of view distance gating automobile night vision is realized based on the time slicing technology and the frequency agility technology of the pulsed laser. The working frequency of the pulsed laser is in a pseudo-random chan...

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Abstract

The invention discloses a method for realizing anti-interference large visual field distance gating vehicle night vision, which is realized on the basis of a time slicing technology and a frequency agility technology of a pulse laser. A working frequency point of the pulse laser is in a state of pseudo random variation and satisfies that pulse lasers with a certain pulse interval are emitted from the pulse laser, and the pulse lasers are spread forwards; a night vision working region is divided into n working sections, n is a natural number, scanning of slicing of different working sections is realized by variation of delay time between a gating pulse and a laser pulse by adopting a working mode of working section layer weighing, layer samples are collected according to a set exposure weight value gamma, a layer frame is obtained by carrying out screening, transverse noise reduction and fusion on the layer samples, and then a visual frame picture for assisting a driver to safely drive through treatments including longitudinal noise reduction and fusion to the layer frame is obtained. By utilizing the invention, the problems of near-far effect, noise accumulation and interference among different night vision systems during working in a large visual field are solved.

Description

technical field [0001] The invention relates to the technical field of night vision, in particular to a method for realizing anti-interference and large field of view distance gating car night vision. Background technique [0002] In today's society, traffic accidents have become one of the public hazards that threaten people's lives and property safety, especially at night and in conditions of low visibility such as fog, rain, and snow. At present, when the car is running at night, it is mainly illuminated by approaching lights and high beams. Under normal circumstances, the effective distance of the low beam is about 50m, and the effective distance of the high beam is about 100m. In low-visibility conditions such as fog, rain, and snow, the driver's visual distance becomes closer, and it is easy to cause the driver's vision to be blurred and fatigued. In addition, the glare of the reverse headlights will dazzle the driver and make it difficult to see the road conditions,...

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Application Information

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IPC IPC(8): B60Q1/00
Inventor 王新伟周燕刘育梁
Owner 北京中科盛视科技有限责任公司
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