CAJ | 학술논문

目前，关于影像信息量的研究大多是注重信息量的计算模型，很少涉及空间分辨率与信息量之间的定量关系。为了对不同空间分辨率的遥感影像进行定量化评定，以信息论和模糊数学为理论基础，信息熵为测度，通过计算不同空间分辨率水平的全色影像和多光谱影像的信息量，对信息量与空间分辨率的关系进行直接量化模拟。结果表明，影像信息量随着空间分辨率的降低呈指数降低，空间分辨率在原影像基础上每增加一倍，影像信息量相应增加3～5倍。
목전，관우영상신식량적연구대다시주중신식량적계산모형，흔소섭급공간분변솔여신식량지간적정량관계。위료대불동공간분변솔적요감영상진행정양화평정，이신식론화모호수학위이론기출，신식적위측도，통과계산불동공간분변솔수평적전색영상화다광보영상적신식량，대신식량여공간분변솔적관계진행직접양화모의。결과표명，영상신식량수착공간분변솔적강저정지수강저，공간분변솔재원영상기출상매증가일배，영상신식량상응증가3～5배。
Currently ,most studies focus on the calculation model of the information content , rarely involve the quantitative relation between spatial resolution and information content .In order to quantitatively evaluate different spatial resolution remote sensing images ,this paper was based on the theory of information and fuzzy mathematics and the information entropy was used as the criterion .Through calculating the information content of panchromatic and multi-spectral image at different levels ,a mathematical simulation of the relationship between infor-mation content and spatial resolution was provided .The results show that ,as the spatial reso-lution of the image reduces ,the amount of information exponentially reduces .Doubling the spatial resolution ,the image information content increases 3 to 5 times .