HAZE REMOVAL BASED ON SPOT REMOTE SENSING IMAGE

Abstract

This paper deals with the methods for haze removal based on SPOT 5 remote sensing image by using haze-clear areas reflectance matching.The procedure is as follows: First,the haze area is recognized by using band statistic values,Second,the remote sensing image is classified by using unsupervised classification,then the aerosol optical depth distribution is calculated by comparing the radiation values in haze and clear areas,Finally,the image can be atmospherically corrected by using MODTRAN model.The panchromatic image can be atmospherically corrected in a similar way by using the resample aerosol optical depth distribution.It is concluded that the haze-clear area reflectance matching is an effective haze removal method.In addition,the image can be transformed to reflectance and compared with different remote sensing images.