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Mine image intensification method

A technology of image enhancement and mine, which is applied in image enhancement, image data processing, instruments, etc., and can solve problems such as blurred edges of mine images

Inactive Publication Date: 2013-09-18
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
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Problems solved by technology

[0008] The purpose of the present invention is to provide a mine image enhancement method to solve the problem of blurred edges of mine images obtained due to the limitation of coal mine underground environmental conditions

Method used

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0025] The mine image enhancement method of the present invention is a mine image enhancement method based on antisymmetric biorthogonal wavelet. The realization of image enhancement is divided into two parts: one is the decomposition part, which decomposes the mine image, and uses Single-threshold function is used for the first enhancement, and the decomposed high-frequency part is enhanced for the first time by double-threshold function; the second is the reconstruction part, and soft-threshold function is used for the second enhancement in the wavelet reconstruction process. This method can not only extract the edge detail information of the image, but also reduce the noise to a certain extent.

[0026] Such as figure 1 Shown, the concrete steps of the inventive method are as follows:

[0027] (1) Using the A'trous algorithm to decompose the original ima...

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Abstract

The invention relates to a mine image intensification method. Multi-dimensional, dissymmetric and biorthogonal wavelet decomposition and reconstitution are performed on mine original images through an A'trous algorithm and image intensification aiming at a wavelet coefficient is performed through a single threshold function, a dual threshold function and a soft threshold function. According to the mine image intensification method, the intensification processing is performed twice through an edge detection capability of the dissymmetric and biorthogonal wavelet transform and simple threshold functions to achieve the mine image edge intensification, so that the mine images are clear, mine production, detection and other requirements are satisfied and the problem that obtained mine image edges are blurred due to limitation of underground coal mine conditions is solved.

Description

technical field [0001] The invention relates to the field of digital image processing, in particular to a mine image enhancement method. Background technique [0002] Image enhancement technology is one of the basic contents of digital image processing. Its purpose is to highlight some information in an image according to specific needs, and at the same time, weaken or remove some unnecessary information, so that the processed image is more suitable for a certain application than the original image. The visual characteristics of the machine or the recognition system of the machine. In practical applications, the original images acquired by our system often fail to meet our needs. For example, in special places such as underground coal mines where the working environment is harsh and the geological conditions are complex, due to noise, illumination, etc., the original images acquired by the system , the quality of the image is not high, so some processing is required to ext...

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Application Information

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IPC IPC(8): G06T5/00
Inventor 刘晓阳贺方圆
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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