CAJ | 학술논문

引入像元形状指数（ PSI），利用像元形状指数能够反映地物匀质性的特点，结合水体的光谱特征，开展高分辨率遥感影像的水体信息提取，实验表明基于像元形状指数和光谱特征的方法较好解决了建筑物阴影等地物的干扰，有效提高了高分辨率影像水体提取精度，该方法在地理国情普查水体覆盖数据生产中取得了较好的效果，为利用高分辨率遥感影像开展地理国情普查地表覆盖数据生产提供了一种新的方法。
인입상원형상지수（ PSI），이용상원형상지수능구반영지물균질성적특점，결합수체적광보특정，개전고분변솔요감영상적수체신식제취，실험표명기우상원형상지수화광보특정적방법교호해결료건축물음영등지물적간우，유효제고료고분변솔영상수체제취정도，해방법재지리국정보사수체복개수거생산중취득료교호적효과，위이용고분변솔요감영상개전지리국정보사지표복개수거생산제공료일충신적방법。
This paper presents a spatial feature index,pixel shape index( PSI),which can describe the similarity of objects. Combined with the spectral characteristics of water,PSI can be used to extract water information from high reso-lution remote sensing image. Experiments indicate that combining the PSI with the spectrum information can be an effec-tive way to remove the influence of unwanted objects,such as building shadow. The method reaches higher water extrac-tion accuracy,which has made a good effect on the data production in National Geography Census. It provides a new method for data production based on high resolution remote sensing image in National Geography Census.