Computer Engineering and Applications ›› 2015, Vol. 51 ›› Issue (10): 170-173.

### Improved inversion algorithm based on image edge for visibility

LV Yanfen1，2, YANG Ling1，2, ZHEN Xiaoqiong1

1. 1.College of Electronic Engineering, Chengdu University of Information Engineering, Chengdu 610225, China
2.CMA Meteorological Observation Key Laboratory, Chengdu 610225, China
• Online:2015-05-15 Published:2015-05-15

### 改进的基于图像边缘的能见度反演方法

1. 1.成都信息工程学院 电子工程学院，成都 610225
2.中国气象局大气探测重点开放实验室，成都 610225

Abstract: According to the existing method for image edge visibility, the result is not ideal, this paper presents an improved method based on image edge detection for visibility. Firstly, it selects the target image using sift algorithm for template matching, then the discrete shearlet transform is used to extract the edge features, and then these features and the results of forward-scattering visibility meter are related. After establishing the relationship, visibility can be computed by the features with the built relationship. The experimental results show that the relative error is reduced by 2.761% relative to Sobel algorithm, and by 1.607% relative to wavelet transform algorithm. The accuracy and efficiency are obviously improved.