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

A car night vision, large field of view technology, applied in the field of night vision, can solve the problems of noise accumulation and interference in different night vision systems

Active Publication Date: 2012-02-29
北京中科盛视科技有限责任公司
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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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  • Method for realizing anti-interference large visual field distance gating vehicle night vision
  • Method for realizing anti-interference large visual field distance gating vehicle night vision

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[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. Descriptions of structural embodiments and methods of the invention are disclosed herein. It is to be understood that the intention is not to limit the invention to the particular disclosed embodiments, but that the invention can be practiced using other features, elements, methods and embodiments. Similar elements in different embodiments are generally labeled with similar numbers.

[0050] The method for realizing the anti-jamming large-field-of-view distance gating car night vision provided by the present invention is realized based on the time slicing technology and the frequency-agile technology of the pulse laser. The pulsed laser is emitted from the pulsed laser and propagates forward; the night vision work area is ...

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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 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,...

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Application Information

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Patent Type & Authority Patents(China)
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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