Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

CS image denoising reconstruction method based on hyperspectral total variation

A full variation, hyperspectral technology, applied in the field of image processing, can solve the problem of poor denoising and reconstruction performance of high-noise images, improve the screening ability, solve the problem of denoising and reconstruction, and achieve simple effects

Active Publication Date: 2020-09-08
ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the technical problem of poor performance of denoising and reconstruction of high-noise images in existing CS reconstruction methods, the present invention proposes a CS image denoising and reconstruction method based on hyperspectral total variation, which uses the established CS reconstruction model to iteratively update the reconstructed image , use the Starlet transform to sparsely represent the high-noise image to obtain the Starlet coefficients, use the designed new threshold operator to filter the Starlet data of the obtained image in each iteration process, and effectively protect the details in the image while removing the noise Feature information can effectively realize high-quality reconstruction of high-resolution images under high-noise conditions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • CS image denoising reconstruction method based on hyperspectral total variation
  • CS image denoising reconstruction method based on hyperspectral total variation
  • CS image denoising reconstruction method based on hyperspectral total variation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0053] Thought of the present invention is: (1) use design based on l 1 The CS reconstruction model of norm and HTV iteratively updates the obtained reconstructed image; (2) In the CS sparse transformation process, the Starlet transformation can effectively separate the image data from the noise data to the greatest extent; (3) The designed The new threshold operator uses the improved BayesShrink threshold to effectively filter the obtained Starlet coefficient...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a CS image denoising reconstruction method based on hyperspectral total variation. The CS image denoising reconstruction method comprises the following steps: initializing a reconstructed image, an iterative index value and a noisy observation value; iteratively updating the obtained reconstructed image by using the noisy observation value to obtain an estimated value; respectively inputting the estimated values into a CS reconstruction model based on the l1-norm and the HTV to obtain an intermediate reconstruction image; performing sparse representation on the intermediate reconstructed image by using Starlet transform to obtain a Starlet coefficient; performing denoising filtering on the Starlet coefficient by using the new threshold operator and the improved BayeShrink threshold to obtain a curvelet coefficient; performing Starlet inverse transformation on the curvelet coefficient to obtain a reconstructed image; and judging whether an iteration stopping condition is met or not, and carrying out loop iteration. According to the method, while most noise information in the high-noise image is removed, details, textures and other feature information in the image can be effectively protected, the method is easy to implement and high in robustness, and the denoising reconstruction problem of the high-noise image is effectively solved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a CS image denoising and reconstruction method based on hyperspectral total variation, which is used for denoising and reconstruction of high-noise images, and realizes high-efficiency high-resolution images under high-noise conditions. denoising capability. Background technique [0002] With the continuous progress of modern science and technology, CMOS / CCD sensor technology has also been developed rapidly, and the impact on us is mainly reflected in two aspects: (1) image quality is getting higher and higher; (2) image resolution Higher and higher. Although high-resolution images can bring us high visual enjoyment, they also bring new challenges to the field of image processing. When shooting high-resolution images at night, due to the influence of the night environment, the image data usually obtained contains a lot of noise information; in addition, when sh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
CPCG06T5/90G06T5/70
Inventor 张杰刘亚楠陈宜滨张焕龙张建伟王凤仙朱丽霞
Owner ZHENGZHOU UNIVERSITY OF LIGHT INDUSTRY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products