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

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 fromthe 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 drivethrough 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,...

AI Technical Summary

Problems solved by technology

[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 vision, to solve the problems of near-far effect, noise accumulation and interference between different night vision systems when working with large field of view

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