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Spectral denoising method and processor

A spectrum and signal-to-noise ratio technology, applied in the field of spectral information processing, can solve the problem of inability to maintain local peak information of spectral information, and achieve the effect of effective adjustment

Active Publication Date: 2021-10-08
HUNAN RICE RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the various forms of spatial nonlinear filter operators in the existing denoising methods do not involve the effective adjustment of the diffusion time, so they cannot maintain the local peak information in the denoising process of spectral information

Method used

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  • Spectral denoising method and processor
  • Spectral denoising method and processor
  • Spectral denoising method and processor

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Embodiment Construction

[0043] The specific implementation manners of the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation manners described here are only used to illustrate and explain the embodiments of the present invention, and are not intended to limit the embodiments of the present invention.

[0044] figure 1 A schematic flowchart of a spectral denoising method according to an embodiment of the present invention is schematically shown. like figure 1 As shown, in an embodiment of the present invention, a spectral denoising method is provided, comprising the following steps:

[0045] Step 101, acquire the spectrum to be denoised.

[0046] Step 102, determining the gradient information of the spectrum to be denoised.

[0047] Step 103, determine the time modulation function according to the gradient information.

[0048] Step 104, adjust the preset nonlinear diffusion...

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Abstract

The embodiment of the invention provides a spectrum denoising method and a processor. The method comprises the following steps: acquiring a to-be-denoised spectrum; determining gradient information of the to-be-denoised spectrum; determining a time modulation function through the gradient information; adjusting a preset nonlinear spread function according to the time modulation function; and performing iterative denoising on the to-be-denoised spectrum according to the adjusted nonlinear spread function. The time modulation function is determined to adjust the non-linear spread function, and then the to-be-denoised spectrum is subjected to iterative denoising according to the adjusted non-linear spread function, so that effective adjustment of a spatial non-linear filtering operator for the diffusion time is realized, and local peak information of the spectrum in the spectrum information denoising process is reserved with high precision.

Description

technical field [0001] The invention relates to the field of spectral information processing, in particular to a spectral denoising method and a processor. Background technique [0002] In the existing technology in the field of spectral information processing, the denoising method based on the diffusion equation has always been an important class of denoising methods for spectral information, which can better preserve local details while denoising. However, the various forms of spatial nonlinear filter operators in the existing denoising methods do not involve the effective adjustment of the diffusion time, and thus cannot maintain the local peak information in the process of denoising spectral information. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a spectral denoising method and a processor. [0004] In order to achieve the above object, the first aspect of the present invention provides a spectrum denoising...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/15G01J3/28
CPCG06F17/15G01J3/28
Inventor 朱明东余应弘谢红军汤国华曾晓珊肖燕
Owner HUNAN RICE RES INST
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