一种面向地理对象的高分辨率航空影像匀光算法  

A Radiometric Normalization Algorithm of High Resolution Airborne Image for Geographic Object

作　　者：荣利会 聂海滨[2] 戴晨光[1] 仇多兵 

机构地区：[1]信息工程大学地理空间信息学院,河南郑州450001 [2]武汉大学测绘学院,湖北武汉430079

出　　处：《测绘科学与工程》2016年第1期42-45,共4页Geomatics Science and Engineering

摘　　要：针对常规算法在处理高分辨率航空影像时存在的不足，本文提出了一种面向地理对象的匀光算法。首先通过分水岭算法对影像分割提取出地理对象，然后以地理对象为单元进行匀光处理。为了验证本文算法的有效性，对相邻两幅DMC影像进行了实验，实验结果表明，该方法在消除影像辐射间差异的同时能较好地保留影像地物的细节信息。A radiometric normalization algorithm based on geographic objects is presented in this paper to deal with the problems of conventional algorithms in processing high resolution airbotaae images. Firstly, the geographic objects are extracted from image segmentation using watershed algorithm, and then they are processed with radiometric nomalization algorithm as a unit. The effectiveness of the proposed algorithm is verified by experiments on two adjacent DMC images. The experiment resuhs show that the method can preserve the details of the image features and eliminate the differences between two images.

关 键 词：地理对象 匀光 高分辨率 影像分割 

分 类 号：P223[天文地球—大地测量学与测量工程]