| HY-1/COCTS波段信息含量与波段相关性分析--以辽东湾为例 |
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| 引用本文： | 邹亚荣,王其茂,马超飞.HY-1/COCTS波段信息含量与波段相关性分析--以辽东湾为例[J].海洋科学进展,2005,23(1):70-75. |
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| 作者姓名： | 邹亚荣 王其茂 马超飞 |
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| 作者单位： | 国家卫星海洋应用中心,北京,100081;国家卫星海洋应用中心,北京,100081;国家卫星海洋应用中心,北京,100081 |
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| 基金项目： | 国家海洋局青年基金项目--HY-1/COCTS共性需求的数据融合关键技术研究(2004408) |
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| 摘 要： | 以2003年4月辽东湾的HY-1／COCTS数据为例，采用主成分分析法和相关分析法，从光谱的不同结构、主成分、相关性等方面来揭示COCTS图像的光谱信息。COCTS的10个波段中，9，10两个波段与其他几个波段相比，包含的信息较丰富。在其他的8个波段中，6，7波段的信息较为丰富，6波段对主成分的贡献大。这8个波段与9波段和10波段的相关性为负相关，表明它们间的重叠少。5波段与1波段、7波段与6波段、6波段与2波段的相关性较高，这说明这些数据间的彼此重叠较多，故在进行波段图像的假彩色合成时一般以8，4，3或8，4，1波段的组合为佳。以OIF指数来检查融合方法的可行性。
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| 关 键 词： | 图像增强 波段组合 辽东湾 |
| 文章编号： | 1671-6647(2005)01-0070-06 |
| 修稿时间： | 2004年3月24日 |
Information Contents and Correlation Analysis for HY-1/COCTS Bands--Taking the Liaodong Bay as an Example |
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| ZOU Ya-rong,WANG Qi-mao,MA Chao-fei.Information Contents and Correlation Analysis for HY-1/COCTS Bands--Taking the Liaodong Bay as an Example[J].Advances in Marine Science,2005,23(1):70-75. |
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| Authors: | ZOU Ya-rong WANG Qi-mao MA Chao-fei |
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| Abstract: | In this paper, taking the HY-1/COCTS data of Liaodong Bay in April, 2003 as an example, the principal component analysis (PCA) method and correlation analysis method are used to reveal the spectral information of COCTS images. Among 10 COCTS bands, bands 9 and 10 contain more information than other 8 bands. Among other 8 bands, bands 6 and 7 contain more information, and band 6 makes great contribution to the principal component. Data in bands 9 and 10 are in negative correlation with those in other 8 bands, which indicates that the data in bands 9 and 10 have less overlaps with those in other 8 bands. The correlations between data in band 5 and band 1, band 7 and band 6 and band 6 and band 2 are higher, which indicates that there are more overlaps between these data, so it is good way to combine the data in bands 8, 4 and 3 or in bands 8, 4 and 1 for making the false color composite of images of different bands. The coefficient OIF can be used to examine the feasibility of image merging method. |
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| Keywords: | image enhancement combination of bands Liaodong Bay |
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