| TM 图像的信息量分析及特征信息提取的研究 |
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| 引用本文： | 陆灯盛,游先祥,崔赛华.TM 图像的信息量分析及特征信息提取的研究[J].遥感学报,1991(4). |
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| 作者姓名： | 陆灯盛 游先祥 崔赛华 |
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| 作者单位： | 北京林业大学
(陆灯盛，游先祥)，北京林业大学(崔赛华) |
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| 摘 要： | 图像信息量分析是图像处理的基础,为此,本文研究了三个不同植被覆盖类型区,即多林区(森林覆盖在40％以上)、一般林地分布的丘陵区(森林覆盖10-30％)和农田为主的丘陵与平原区的图像信息量。分析同一地区冬夏两季的图像信息特征后得知,红外波段的信息量高于可见光波段,其中信息量最大的是TM5波段,最小的是TM2波段。同时对不同情况下波段间的相关性、均值和标准差等统计特征值也进行了分析。据此就图像增强、信息特征提取方法,如主成分分析、缨帽变换(KT变换)、比值等方法以及波段组合等进行了系统研究,并就其实用条件进行了探讨和评价。
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| 关 键 词： | 信息量分析 统计特征值分析 图像增强 信息特征提取 波段组合 |
A STUDY ON THE ANALYSIS OF TM IMAGE INFORMATION CONTENT AND THE EXTRACTION OF CHARACTERISTIC INFORMATION |
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| Lu Dengsheng You Xianxiang Cui Saihua.A STUDY ON THE ANALYSIS OF TM IMAGE INFORMATION CONTENT AND THE EXTRACTION OF CHARACTERISTIC INFORMATION[J].Journal of Remote Sensing,1991(4). |
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| Authors: | Lu Dengsheng You Xianxiang Cui Saihua |
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| Institution: | Beijing Forestry University |
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| Abstract: | Analysis of image information content is the basis of image treatment. The image information content of three areas of different vegefation cover types namely multi-forest region (more than 40% of forest cover), hilly region of average forest land distribution (about 10-30% of forest cover), and hilly and plain region mainly with farmland was studied, the image of the same region in winter and summer were analyzed. On the basis of image information content analysis, methods of treatment of different images were studied, and their practicality was analyzed and explored as well.The analysis of information feature shows the general law that the information content of infrared band is higher than that of visible light band, in which the maximum of information content is band TM5, and the minimum, band TM2, Meanwhile, in lifferent conditions, the statistical feature value of correlation between bands, mean value and standard deviation was analyzed, thus making image treatment establish on the basis of the analysis of information content and statistical feature. Accordingly, the enhencement of image, the method of information feature extraction (such as the analysis of principal composition, KT transformation and ratio method) and the combination of bands were researched in a systematic way, and the conditions of their practicality were also explored and evaluated |
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| Keywords: | analysis of information content analysis of statistical feature value en-hancement of image information feature extraction combination of bands |
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