Method and device of image dehazing

An image and original image technology, applied in the field of image defogging methods and devices, can solve problems such as complex, difficult to quantitatively describe, and no technical solutions proposed

Inactive Publication Date: 2013-04-24
信帧机器人技术(北京)有限公司
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the imaging process of the target in foggy weather is very complicated, it is difficult to accurately describe it quantitatively, and the degree of image degradation in foggy weather is proportional to the depth of the target, so obtaining the depth information of the scene target from a single image is itself a pathological problem.
[0003] That is to say, in the prior art, the method of obtaining the depth information of the scene target by using a single image cannot eliminate the problem that the smog affects the work of the external video system, and no effective technical solution has been proposed yet.

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
  • Method and device of image dehazing
  • Method and device of image dehazing
  • Method and device of image dehazing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] First of all, a brief introduction to the image defogging method provided by the embodiment of the present invention: for a specific scene (mainly in the case of foggy weather), the obtained foggy image is subjected to defogging processing: firstly, the read original fog The sky image calculates the dark primary color image (in order to opt...

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 method and a device of image dehazing, wherein the method comprises calculating a dark primary color image I (x, y) according to a primary image and obtaining airglow A corresponding to the dark primary color image; estimating the dark primary color image and accordingly obtain a first transmission diagram of an atmospheric scattering module, and adopting Gaussian filtering to conduct edge thinning on the first transmission diagram and accordingly obtain a second transmission diagram; and conducting recovery operations on the a primary image I (x, y) according to the second transmission diagram and the airglow and accordingly obtain a fog-free image. By adopting the method and the device of image dehazing, an outdoor video system can normally work even on heavy fog scenes, and relatively clear images can be acquired.

Description

technical field [0001] The invention relates to the technical field of computer image processing, in particular to an image defogging method and device. Background technique [0002] In the case of foggy weather, due to the reduced visibility of the scene, the contrast and color of the target in the image will be attenuated, resulting in the failure of the outdoor video system to work normally. Therefore, it is necessary to eliminate the influence of haze on the scene image in the video image. Image dehazing has always been an important content in the field of computer vision research. Since the imaging process of foggy objects is very complex, it is difficult to accurately describe quantitatively, and the degree of image degradation in foggy weather is proportional to the depth of the object, so obtaining the depth information of the scene object from a single image itself is a pathological problem. [0003] That is to say, in the prior art, the way of obtaining the depth ...

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
Inventor 王海峰王晓萌何小波董博杨宇张凯歌
Owner 信帧机器人技术(北京)有限公司
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