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Grain insect image stochastic resonance restoration method and system of plasticity time delay feedback bistable situation trap

A technology of time-delay feedback and stochastic resonance, applied in computer parts, signal pattern recognition, instruments, etc., can solve problems such as limited filter frequency band

Pending Publication Date: 2020-06-19
NANJING UNIV OF FINANCE & ECONOMICS
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Problems solved by technology

[0005] The purpose of the present invention is to provide a stochastic resonance restoration method for food insect images, to overcome the above-mentioned deficiencies in the prior art, and to overcome the problems such as the limited filtering frequency band caused by the short memory of the classic bistable stochastic resonance system

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  • Grain insect image stochastic resonance restoration method and system of plasticity time delay feedback bistable situation trap
  • Grain insect image stochastic resonance restoration method and system of plasticity time delay feedback bistable situation trap
  • Grain insect image stochastic resonance restoration method and system of plasticity time delay feedback bistable situation trap

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Embodiment Construction

[0067] combine figure 1 , the present invention proposes a stochastic resonance restoration method of food insect image with plastic time-delay feedback bistable potential well, comprising the following steps:

[0068] Step 1: Add noise to the original pure grain worm image signal to obtain the noisy grain worm image signal G p×q That is, the two-dimensional grain insect image matrix G(i,j):

[0069] G(i,j)=I(i,j)+ε(i,j)

[0070] In the formula, i,j=1,2,...,pq, I(i,j) is the original pure grain insect image, ε(i,j) is Gaussian white noise, G p×q The subscript of represents the p×q order noisy grain insect image matrix.

[0071] Step 2. Preprocess the noise-containing low-contrast 256-level gray-scale grain worm image signal to obtain a one-dimensional grain worm that satisfies the small-parameter signal input conditions of the plastic time-delay feedback bistable potential well stochastic resonance system under the adiabatic approximation limit image sequence. The specifi...

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Abstract

The invention discloses a grain insect image stochastic resonance restoration method and system for a plastic time delay feedback bistable situation trap, which overcome the problem that a filtering frequency band of a classic bistable stochastic resonance system is limited due to short memory. According to the invention, time delay feedback control is introduced into a potential function of a classic bistable stochastic resonance system; historical information is added to a negative feedback process of stochastic resonance; therefore, the problem that the filtering frequency band of a short-memory classic bistable stochastic resonance system is limited is eliminated; the weak signal enhancement and extraction capability of a classic bistable system is improved, and then a plastic time delay feedback bistable situation trap stochastic resonance method is utilized to perform restoration and enhancement processing on a low-contrast noisy grain insect image signal so as to realize effective enhancement and qualitative analysis of a low-contrast grain insect image. The method has the advantages that the limitation of a filtering frequency band of a classic bistable system is overcome,and a higher peak signal-to-noise ratio of the grain insect restoration image and a higher-quality grain insect image restoration effect can be obtained.

Description

technical field [0001] The invention belongs to the field of image recognition enhancement, and in particular relates to a stochastic resonance restoration method and system for food insect images with plastic time-delay feedback bistable potential wells. Background technique [0002] As the most basic means of subsistence for the survival and development of human society, food is an important strategic material related to the national economy and the people's livelihood, and plays a decisive role in social stability in today's rapid economic development. The annual post-production loss of grain in our country is as high as 50 billion catties, of which the loss rate in the grain storage link is as high as 30 billion catties. The harm of stored grain pests (grain insects) has brought about a reduction in grain production and quality, which has seriously restricted the health and sustainability of my country's grain industry. develop. In order to effectively prevent and contro...

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06F2218/14G06F2218/04G06F18/213
Inventor 刘健杨冠男丁晓剑杨帆陈晨程伟曹杰
Owner NANJING UNIV OF FINANCE & ECONOMICS
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