THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

DU Jin-kang; FENG Xue-zhi; WANG Zhou-long; HUANG Yong-sheng; RAMADAN Elnazir

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THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir

文章导航 > Chinese Geographical Science > 2002 > 12(1): 68-72

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. 中国地理科学, 2002, 12(1): 68-72.

引用本文:

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. 中国地理科学, 2002, 12(1): 68-72.

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. Chinese Geographical Science, 2002, 12(1): 68-72.

Citation:

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. Chinese Geographical Science, 2002, 12(1): 68-72.

THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

Department of Urban and Resource Science, Nanjing University, Nanjing 210093 , P. R. China

详细信息

作者简介:
DU Jin-kang(1964-),male,a native of Muping County,Shandong Province,associate professor. His research interests include bydrological modeling,application of GIS and Remote Sensing to hydrology.

中图分类号: TP751.1

THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

Department of Urban and Resource Science, Nanjing University, Nanjing 210093 , P. R. China

摘要: Some techniques and methods for deriving water information from SPOT-4(XI) image were investigated and discussed in this paper. An algorithm of decision tree (DT) classification which includes several classifiers based on the spectral responding characteristics of water bodies and other objects, was developed and put forward to delineate water bodies. Another algorithm of decision tree classification based on both spectral characteristics and auxiliary information of DEM and slope (DTDS) was also designed for water bodies extraction. In addition, supervised classification method of maximum likelyhood classification (MLC), and unsupervised method of interactive self organizing dada analysis technique (ISODATA) were used to extract waterbodies for comparison purpose. An index was designed and used to assess the accuracy of different methods adopted in the research. Results have shown that water extraction accuracy was variable with respect to the various techniques applied. It was low using ISODATA, very high using DT algorithm and much higher using both DTDS and MLC.
- water body /
- decision tree algorithm /
- accuracy assessment
Abstract: Some techniques and methods for deriving water information from SPOT-4(XI) image were investigated and discussed in this paper. An algorithm of decision tree (DT) classification which includes several classifiers based on the spectral responding characteristics of water bodies and other objects, was developed and put forward to delineate water bodies. Another algorithm of decision tree classification based on both spectral characteristics and auxiliary information of DEM and slope (DTDS) was also designed for water bodies extraction. In addition, supervised classification method of maximum likelyhood classification (MLC), and unsupervised method of interactive self organizing dada analysis technique (ISODATA) were used to extract waterbodies for comparison purpose. An index was designed and used to assess the accuracy of different methods adopted in the research. Results have shown that water extraction accuracy was variable with respect to the various techniques applied. It was low using ISODATA, very high using DT algorithm and much higher using both DTDS and MLC.
- water body /
- decision tree algorithm /
- accuracy assessment

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THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

Department of Urban and Resource Science, Nanjing University, Nanjing 210093 , P. R. China

作者简介:
DU Jin-kang(1964-),male,a native of Muping County,Shandong Province,associate professor. His research interests include bydrological modeling,application of GIS and Remote Sensing to hydrology.

收稿日期: 2001-11-15
刊出日期: 2002-03-20

中图分类号: TP751.1

关键词:

water body /

decision tree algorithm /

accuracy assessment

摘要: Some techniques and methods for deriving water information from SPOT-4(XI) image were investigated and discussed in this paper. An algorithm of decision tree (DT) classification which includes several classifiers based on the spectral responding characteristics of water bodies and other objects, was developed and put forward to delineate water bodies. Another algorithm of decision tree classification based on both spectral characteristics and auxiliary information of DEM and slope (DTDS) was also designed for water bodies extraction. In addition, supervised classification method of maximum likelyhood classification (MLC), and unsupervised method of interactive self organizing dada analysis technique (ISODATA) were used to extract waterbodies for comparison purpose. An index was designed and used to assess the accuracy of different methods adopted in the research. Results have shown that water extraction accuracy was variable with respect to the various techniques applied. It was low using ISODATA, very high using DT algorithm and much higher using both DTDS and MLC.

English Abstract

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. 中国地理科学, 2002, 12(1): 68-72.

引用本文:

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. 中国地理科学, 2002, 12(1): 68-72.

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. Chinese Geographical Science, 2002, 12(1): 68-72.

Citation:

DU Jin-kang, FENG Xue-zhi, WANG Zhou-long, HUANG Yong-sheng, RAMADAN Elnazir. THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE[J]. Chinese Geographical Science, 2002, 12(1): 68-72.

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THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

作者简介: DU Jin-kang(1964-),male,a native of Muping County,Shandong Province,associate professor. His research interests include bydrological modeling,application of GIS and Remote Sensing to hydrology.

THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

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THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

Department of Urban and Resource Science, Nanjing University, Nanjing 210093 , P. R. China

作者简介: DU Jin-kang(1964-),male,a native of Muping County,Shandong Province,associate professor. His research interests include bydrological modeling,application of GIS and Remote Sensing to hydrology.

English Abstract

THE METHODS OF EXTRACTING WATER INFORMATION FROM SPOT IMAGE

Department of Urban and Resource Science, Nanjing University, Nanjing 210093 , P. R. China

全文HTML

目录

作者简介:
DU Jin-kang(1964-),male,a native of Muping County,Shandong Province,associate professor. His research interests include bydrological modeling,application of GIS and Remote Sensing to hydrology.

作者简介:
DU Jin-kang(1964-),male,a native of Muping County,Shandong Province,associate professor. His research interests include bydrological modeling,application of GIS and Remote Sensing to hydrology.