Proceedings of the Symposium on Global and Environmental Monitoring: Proceedings of the Symposium on Global and Environmental Monitoring

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Persistent identifier:: 856665355

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts ; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856665355

Language:: English

Document type:: Multivolume work

Volume

Persistent identifier:: 856669164

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Scope:: XIV, 912 Seiten

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856669164

Illustration:: Illustrationen, Diagramme, Karten

Signature of the source:: ZS 312(28,7,1)

Language:: English

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: International Society for Photogrammetry and Remote Sensing, Commission of Photographic and Remote Sensing Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [WP-5 LARGE SHARED DATABASES]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: DEVELOPMENT OF THE REVISING METHOD FOR NATIONAL DIGITAL LAND-USE INFORMATION USING REMOTELY SENSED DATA. Yasushi Shimoyama, Minoru Akiyama, Tokio Mizuno, Takashi Hayashi

Document type:: Multivolume work

Structure type:: Chapter

531 DEVELOPMENT OF THE REVISING METHOD FOR NATIONAL DIGITAL LAND-USE INFORMATION USING REMOTELY SENSED DATA Yasushi Shimoyama, Minoru Akiyama, Tokio Mizuno, Takashi Hayashi Geographical Survey Institute (GSI) of Japan ABSTRACT National Land Agency (NLA) and GSI have been prepared Japanese national land information in digital format since 1974. As far as land-use information is concerned raster image data of 15 categories with pixel size of approximately 10m by 10m were collected from 1:25,000 scale topographic maps. Those data are expected to be revised periodically. However, besides budgetary reasons, we cannot fix the revision date by this method because original topographic maps are revised in sheet by sheet and not simultaneously. Therefore, NLA is planning to revise the data using satellite image data, and GSI has been studying on developing the revising method. The method is not fully automatic image analysis but quite practical one which integrating visual image interpretation techniques into digital analysis. The outline of the method is as follows. For registration of satellite images onto maps, visual matching between rasterized map and satellite image on color display is adopted which is quite simple and easier than GCP collection. Classification is mainly done by manually determined decision boundaries on two dimensional feature plane. In this case, decision boundary is drawn by hand with the help of information for cluster distribution and training data distribution on the same two dimensional feature plane. Moreover, decision boundary can be edited by hand with referring to the classified result. Classified result is compared with the old land-use data so that we can check if the direction of landuse change is reasonable or not. Final result is arranged after checking and correcting the classified result by image editing basis with the help of photo interpretation technique. In the paper the concepts, methodology and a case study of this method will be presented.

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