Nuclear radiation interference image enhancement method based on sparse transformation
A sparse transformation and interference image technology, which is applied in the field of nuclear radiation interference image enhancement, can solve problems such as image degradation and patch noise, and achieve the effect of improving denoising performance and meeting denoising needs.
Pending Publication Date: 2022-04-01
无锡图创智能科技有限公司
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[0006] In order to solve the problem that nuclear radiation can easily cause plaque noise in the image and cause image degradation, the present invention provides an enhancement method based on sparse transformation of nuclear radiation interference image, which can reduce the loss of image details and improve the denoising performance at the same time and image clarity, meeting the denoising requirements of larger plaques caused by strong radiation
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[0036] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and / or reference letters in different instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and / or the use of other materials.
[0037] The video in the strong nuclear radiation environment (nuclear radiation dose>50Gy) is collected by the CCD video sensor (camera). When the nuclear radiation intensity ch...
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The invention discloses a nuclear radiation interference image enhancement method based on sparse transformation, which can reduce image detail loss, improve denoising performance and image definition and meet denoising requirements of larger plaques caused by strong radiation, and comprises the following steps: sequentially executing a first stage and a second stage; in the first stage, a reference image is obtained through basic estimation of an original image; in the second stage, weighted aggregation estimation is carried out on the reference image; in the first stage and the second stage, the original image and the reference image are processed by sequentially adopting block matching, sparse transformation and collaborative filtering and an aggregation algorithm; collaborative filtering comprises hard threshold filtering for the first stage and Wiener filtering for the second stage.
Description
technical field [0001] The invention relates to the technical field of machine vision, in particular to a method for enhancing nuclear radiation interference images based on sparse transformation. Background technique [0002] Nuclear energy is widely used in medical and health care, food insurance, agriculture, nuclear power generation and other fields due to its advantages of low pollution, high economy, safety and reliability. In order to ensure the safe development and operation of nuclear energy, it is necessary to monitor, diagnose and control the nuclear energy production process. At present, the commonly used technology for sensing nuclear energy production scene information is machine vision technology. [0003] The main equipment used in machine vision technology is perception sensors. At present, the perception sensors used for nuclear radiation production scene perception include complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CM...
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Login to View More IPC IPC(8): G06T5/00G06T5/10G06T5/20
Inventor 刘国营葛继
Owner 无锡图创智能科技有限公司