Adjacency effect estimation by ground spectra measurement and satellite optical sensor synchronous observation data  

作　　者：马建文 陈雪 

机构地区：[1]State Key Laboratory of Remote Sensing Science

出　　处：《Chinese Optics Letters》2006年第9期546-549,共4页中国光学快报（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China under Grant No. 40371086.

摘　　要：This paper addresses the estimation of adjacency effect of CBERS-2 image. The adjacency effect influences the digital number （DN） value of a pixel by adding surrounding scattering signals and path scattering signals. Based on the theory of radiation transfer model, a procedure is designed to measure the reflectance from the surface target materials and the materials in a box, which is 1.5 m above the surface to avoid upwelling reflectance. The results show that the adjacency effect varies from visible, near infrared and becomes steady within short infrared wavelength region; the adjacency effect weakens with the increase of distance between testing sites. The adjacency effect of CBERS-2 image is corrected and the quality of the resulting image is improved.This paper addresses the estimation of adjacency effect of CBERS-2 image. The adjacency effect influences the digital number （DN） value of a pixel by adding surrounding scattering signals and path scattering signals. Based on the theory of radiation transfer model, a procedure is designed to measure the reflectance from the surface target materials and the materials in a box, which is 1.5 m above the surface to avoid upwelling reflectance. The results show that the adjacency effect varies from visible, near infrared and becomes steady within short infrared wavelength region; the adjacency effect weakens with the increase of distance between testing sites. The adjacency effect of CBERS-2 image is corrected and the quality of the resulting image is improved.

关 键 词：REFLECTION SATELLITES SCATTERING SURFACES 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]