Single-image rapid defogging method and device and image processing system

A single image and image technology, applied in the field of computer vision, can solve the problems of excessive defogging, slow calculation speed, and calculation errors in foggy images, and achieve the effects of increased contrast and visibility, advantages in calculation speed, and a wide range of applications

Active Publication Date: 2013-11-27
BEIHANG UNIV
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the optimization step of this method for the transmission rate image occupies most of the calculation time, and cannot be used for real-time defogging of large-scale images.
[0004] Of course, other image defogging methods have been proposed in the prior art, but these meth

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-image rapid defogging method and device and image processing system
  • Single-image rapid defogging method and device and image processing system
  • Single-image rapid defogging method and device and image processing system

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] The basic idea of ​​the present invention is to perform denoising processing on a foggy image to obtain a denoised foggy image; calculate the atmospheric light source based on the foggy image, and calculate an estimated transmission rate based on the denoised foggy image; According to the foggy imaging model, the denoised foggy image, the atmospheric light source and the estimated transmission rate are calculated to obtain a restored image, and the brightness of the restored image is adjusted.

[0047] It should be noted that the following embodiments of the present invention perform calculations based on color images, but in the description of the drawings, grayscale images are schematically used instead of color images. In fact, the method of the present invention can also be used for defogging of grayscale images, but it needs to be simplified in specific algorithms. In order to better reflect the effect of image defogging, the general image defogging methods use color ...

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-image rapid defogging method. The single-image rapid defogging method comprises the following steps that de-noising processing is conducted on a foggy day image, so that a foggy day image generated after de-noising processing is obtained; an atmosphere light source is worked out according to the foggy day image, and the estimated transmission rate is calculated according to the foggy day image generated after de-noising processing; based on a foggy day imaging model, calculation is conducted according to the foggy day image generated after de-noising processing, the atmosphere light source and the estimated transmission rate, a restored image is obtained, and brightness adjustment is conducted on the restored image. The invention further discloses a device corresponding to the single-image rapid defogging method and an image processing system. By the adoption of single-image rapid defogging method and device, calculation errors generated in the existing image defogging process can be effectively reduced, the defogging effect is better, the image defogging time can be shortened, and the application range is wider.

Description

technical field [0001] The present invention relates to the technical field of computer vision, in particular to a single image fast defogging method, device and image processing system. Background technique [0002] The scattering effect of tiny particles in the atmosphere, such as fog and haze, will degrade the images taken in outdoor scenes, resulting in a decrease in image quality and affecting visual effects. In foggy weather, the viewing distance is short and the visibility of the scene is low. In images taken in foggy weather, the real information of areas with a long depth of field will be seriously lost. Compared with the fog-free image, the contrast of the foggy image decreases, and the overall color information is not rich enough. By defogging foggy images, image contrast can be improved, color distortion can be corrected, scene visibility can be increased, and visual effects can be improved. Image defogging methods have great demand in various application fiel...

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): G06T7/00
Inventor 魏振忠葛广一曹志鹏
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap