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A Feature Quantification Method for Strong Light Source Interfering Low-light System Imaging

A quantification method and light source technology, applied in image data processing, special data processing applications, instruments, etc., to achieve a strong sense of simulation reality and high physical authenticity

Inactive Publication Date: 2016-09-28
XIDIAN UNIV
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Problems solved by technology

In these literatures, the impact of automatic brightness control on the system's strong light adaptability in low-light imaging systems has not been discussed

Method used

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  • A Feature Quantification Method for Strong Light Source Interfering Low-light System Imaging
  • A Feature Quantification Method for Strong Light Source Interfering Low-light System Imaging
  • A Feature Quantification Method for Strong Light Source Interfering Low-light System Imaging

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Experimental program
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Embodiment Construction

[0021] refer to figure 1 , the specific implementation process of the present invention is as follows:

[0022] Step 1, using 3dMax software to generate a three-dimensional model of the target and its background, and import it into a three-dimensional scene simulation program based on OGRE to generate a specific environmental scene;

[0023] Step 2: Establish the radiation characteristic model of the target surface under the action of strong light source. In each frame of image rendering, calculate the strong light source in real time according to the position of the strong light source, the observation position, and the position and normal direction vector of the surface elements of the target surface. and the irradiance generated by the ambient light at the surface element of the target and the luminance generated by the strong light source reflected by the target and the ambient light in the observation direction:

[0024] (2a) The present invention has set up the space ra...

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Abstract

A quantifying method for an intense light source to interfere imaging features of a glimmer system comprises the steps that (1) 3dMax software is used for generating a target and background three-dimensional model, a three-dimensional scene simulation program based on OGRE is led in to generate a specific environment scene; (2) a target surface radiation characteristic model under the effect of the intense light source is built up, in each frame of image, irradiance generated on the target surface element by the intense light source and environment light is calculated in real time according to the position of the intense light source, the observation position, the position of the target surface element and normal direction vectors, and by combining the target surface radiation characteristic model, the radiance of the intense light source and environment light reflected by the target in the observation direction is calculated; (3) a glimmer system imaging signal response characteristic model before and after the effect of the intense light source is built up; (4) the target surface radiation characteristic model and the glimmer system imaging signal response characteristic model under the effect of the intense light source are combined, imaging results of the target when the target is located at different positions in or out the interference illumination range of the intense light source are simulated, and the results are analyzed.

Description

technical field [0001] The invention belongs to the technical field of computer simulation, and relates to the simulation research on the radiation characteristics of a target surface in a low-light environment by a strong light interference source, in particular to a simulation method for quantifying the imaging characteristics of a low-light system based on strong light interference, which can be used in a low-light imaging system Quantitative evaluation and performance analysis of features. Background technique [0002] In a complex battlefield environment, strong light sources (such as flares) have become an important factor that interferes with the imaging quality of low-light systems. In order to realize the anti-strong light interference protection of the low-light imaging system in the complex battlefield environment, it will be of great theoretical significance and application value to carry out the quantitative model and performance analysis of the imaging characte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06T19/00
Inventor 王晓蕊黄晓敏郭冰涛张建奇黄曦刘德连
Owner XIDIAN UNIV
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