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

Single-frame defogging method based on multi-scale deconvolution filtering

A deconvolution, multi-scale technology, applied in image data processing, instruments, calculations, etc., can solve the problem of not considering the influence of foggy atmosphere, and the dehazing effect is not very ideal, and achieve the effect of improving image detail performance and contrast.

Inactive Publication Date: 2017-07-18
上海弘矽半导体有限公司
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Image enhancement methods are further divided into image color enhancement and image contrast enhancement, mainly through image brightness curve adjustment, Image brightness linear stretching, histogram equalization, and frequency domain image sharpening algorithms to deal with degraded images and enhance images Contrast; but this kind of method does not consider the influence of fog and atmosphere on the image, and the effect of defogging is not very ideal

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
  • Single-frame defogging method based on multi-scale deconvolution filtering
  • Single-frame defogging method based on multi-scale deconvolution filtering
  • Single-frame defogging method based on multi-scale deconvolution filtering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The preferred embodiments of the present invention are given below in conjunction with the accompanying drawings to describe the technical solution of the present invention in detail.

[0018] Such as figure 1 As shown, the single-frame dehazing method based on multi-scale deconvolution filtering in the present invention obtains the rough transmittance image and the fine transmittance image respectively through the minimum value filtering method and the deconvolution filtering method, and then the coarse transmittance Multi-scale fusion of overpass images and fine transmittance images is performed to obtain the final minimum filter transmittance image and deconvolution filter transmittance image, and then the image dehazing calculation based on the atmospheric physical model can restore the degraded input image.

[0019] 1. Atmospheric physical model

[0020] In computer vision and computer graphics, the fog map formation model described by the following equation is w...

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 discloses a single-frame defogging method based on multi-scale deconvolution filtering. Through a minimum value filtering method and a deconvolution filtering method, a rough transmittance image and a fine transmittance image are acquired respectively. Multi-scale integration is performed on the rough transmittance image and the fine transmittance image so as to acquire a final minimum value filtering transmittance image and a deconvolution filtering transmittance image. And then according to an atmospheric physical model, image defogging calculating is performed so that a degraded input image can be recovered. Through minimum value filtering, a rough image is acquired, and through deconvolution filtering, a fine image is acquired. In the invention, recovered image detail performance and a contrast ratio can be increased.

Description

technical field [0001] The invention relates to a method for improving image quality, in particular to a single-frame dehazing method based on multi-scale deconvolution filtering. Background technique [0002] Fog will reduce the visibility of the atmosphere, degrade the scene image, blur the content, reduce the contrast, and reduce the image quality. In order to ensure that visual equipment such as monitoring, photography and video can meet the needs of normal work around the clock, the image sensor adopts Dehaze the degraded image of the set, improve the contrast, enhance the edge detail information, and obtain a picture as close as possible to the fog-free condition. quality. [0003] There are two common methods for image defogging processing, image enhancement method and atmospheric degradation physical model method. Law. Image enhancement methods are further divided into image color enhancement and image contrast enhancement, mainly through image brightness ...

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
IPC IPC(8): G06T5/00G06T5/50
CPCG06T5/50G06T2207/20024G06T5/73
Inventor 聂中平陈雷东
Owner 上海弘矽半导体有限公司
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

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com