Method and device for non-uniform lighting detecting target image

Abstract

This invention relates to a method for detecting target images of space non-uniform illumination and its device, which includes a receiving system mounted on the base seat containing a detector, an emission system with a light source and a scanning reflecting mirror in front of the light source characterizing that the light source of the illumination detection space is a beaming one with the bright angles distributed in light of the medium light attenuation rule and a detection system with a detector is set at the place apart from the axle base of the beaming light source and the axis of the detector faces to the non-uniform optical field and objects illuminated by said beaming light source.

Description

technical field [0001] The invention relates to a method and a device for detecting a target image with non-uniform illumination in the technical field of film and television images and detection. Background technique [0002] For the illumination of objects in the atmosphere, ocean, natural environment or indoors, no matter using general light sources or lasers, we strive to achieve uniform illumination on a certain detection target plane in space, and then acquire images. However, in heavy fog or underwater, especially in harsh environments such as turbid water, using a uniform method to illuminate the detection space will produce strong scattering background noise, which seriously affects the line of sight. If detection methods such as laser pulse technology are used, although basically eliminating Most of the scattering noise is eliminated, but the detection angle and depth of field are limited, and the volume, weight and power consumption of this equipment are large, an...

AI Technical Summary

Problems solved by technology

However, in heavy fog or underwater, especially in harsh environments such as turbid water, using a uniform method to illuminate the detection space will produce strong scattering background noise, which seriously affects the line of sight. If detection methods such as laser pulse technology are used, although basically eliminating Most of the scattering noise is eliminated, but the detection angle and depth of field are limited, and the volume, weight and power consumption of this equipment are large, and the existing mature digital CCD technology and computer image processing technology cannot be fully utilized.

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