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

Defogging method based on shape variable morphological reconstruction

A technology of morphology and deformation structure, applied in image data processing, instrumentation, calculation, etc., to achieve the effect of clear texture details, smooth transmittance, and suppress halo phenomenon

Active Publication Date: 2016-08-31
XI AN JIAOTONG UNIV
View PDF7 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a defogging method based on shape-variable morphological reconstruction to solve the problems existing in existing defogging algorithms

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
  • Defogging method based on shape variable morphological reconstruction
  • Defogging method based on shape variable morphological reconstruction
  • Defogging method based on shape variable morphological reconstruction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] According to the atmospheric scattering model proposed by McCartney, the degradation process of the image in foggy days is inverted to obtain the scene image According to the image J, each channel satisfies the [0,255] pixel boundary limit, and the transmittance inequality is obtained as follows:

[0039] m i n c ∈ { r , g , b } m i n p ∈ B ( J c ( p ) ) ≥ 0 ...

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 defogging method based on shape variable morphological reconstruction, comprising steps of using an image smallest color channel and a biggest color channel while synchronously performing parallel calculation on corresponding medium transmissivity, optimizing transmissivity of the smallest color channel through morphological expansion reconstruction, performing fusion on two transmissivity distribution graphs, and obtaining an optimal transmissivity which is immune to sky. Compared with the current medium transmissivity refinement method in a defogging algorithm, the defogging method of the invention can fundamentally inhibit a halo phenomenon, does not need to detect in advance, adaptively compensates the transmissivity of sky area low estimation and avoids distortion of the sky area in the defogging result.

Description

technical field [0001] The invention relates to the technical field of image restoration, and specifically discloses a defogging method. Background technique [0002] In recent years, the air quality has deteriorated seriously, and severe weather such as fog and haze frequently occurs. Affected by fog and haze, the image presents the characteristics of low contrast and low definition, the detail information in the near view is seriously lost, and the features in the distant view are completely covered or blurred, and the identifiability of information is greatly reduced. At the same time, the color fidelity decreases, and serious color shift occurs. [0003] Image defogging is to remove the fog interference in the image through certain technical means, so as to obtain satisfactory visual effects and obtain more effective information. He et al. proposed the dark channel prior statistical law, and on this basis, proposed the "dark channel prior + guided filtering" algorithm,...

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): G06T5/00
CPCG06T2207/10024G06T2207/20032G06T2207/20008G06T5/00
Inventor 张斌杨宏伟饶磊李艳婷
Owner XI AN JIAOTONG UNIV
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com