Infrared image enhancement processing method based on lateral inhibition coefficient

An infrared image, side suppression technology, applied in image enhancement, image data processing, instruments, etc., can solve the problems of unsuitable image detail information enhancement processing, dispersion of side suppression capability, poor adjustability of hyperbolic distribution parameters, etc. The amount of calculation, the effect of simple implementation, and simple method

Active Publication Date: 2013-08-28
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

Among them, the parameters of the hyperbolic distribution are poorly adjustable, and the side suppression ability of different side suppression fields under the same distribution is prone to be disp

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  • Infrared image enhancement processing method based on lateral inhibition coefficient
  • Infrared image enhancement processing method based on lateral inhibition coefficient
  • Infrared image enhancement processing method based on lateral inhibition coefficient

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Embodiment Construction

[0020] The implementation process of the present invention is specifically described below with reference to the accompanying drawings and examples, figure 1 It is an implementation flowchart of the method of the present invention, specifically including the following steps: establishing a side suppression coefficient distribution model of a unilateral attenuation index, generating a side suppression matrix, and using the side suppression matrix to perform infrared image enhancement processing. The implementation process of each step is described in detail below:

[0021] 1 Establishment of the distribution model of the lateral inhibition coefficient of the unilateral attenuation index

[0022] Unilateral attenuation exponential function f(t)=e σt ,σij,pq =A*exp(σ*d ij,pq ), where k ij,pq Indicates the lateral inhibitory effect of the sensory unit at the position (p,q) on the central sensory unit (i,j), A and σ are coefficients, the * sign in the formula represents the prod...

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Abstract

The invention relates to a lateral inhabitation coefficient determining method based on unilateral attenuation exponential and belongs to the field of image enhancement processing. A lateral inhibition coefficient distribution function is based on the unilateral attenuation exponential, the size of the radius N of a lateral inhibition field range is used for determining a coefficient sigma, the lateral inhibition coefficient is distributed and concentrated in a small lateral inhibition field range through controlling the lateral inhibition coefficient attenuation speed rate to reduce calculation amount of a lateral inhibition network, and a coefficient A is determined based on the optimal lateral inhibition coefficient and the sigma to effectively enhance image visual effects. The method is simple in implementation process, small in calculation amount and obvious in image enhancement effect, and has application and popularization value.

Description

technical field [0001] The invention relates to the technical field of image enhancement, in particular to infrared image processing based on side suppression coefficients in a visual bionic side suppression network model. Background technique [0002] Lateral inhibition is a common phenomenon in the optic nervous system of animals, which originated from Hartline's 40 years of careful research on the compound eyes of soft-shelled turtles. Years of research results have shown that from primitive arthropods to humans, from the peripheral nervous system to the central nervous system, and from touch to vision, there is lateral inhibition. [0003] Side suppression plays the role of enhancing contrast and highlighting the outline of objects, so side suppression can be used in infrared image enhancement processing with low signal-to-noise ratio, including: detecting the edge of the infrared image, enhancing the contrast between the infrared image target and the background; suppres...

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Application Information

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IPC IPC(8): G06T5/00
Inventor 代少升杜智慧李鹏飞张杨
Owner CHONGQING UNIV OF POSTS & TELECOMM
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