Remote sensing for resources development and environmental management: Remote sensing for resources development and environmental management

Damen, M. C. J.

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Multivolume work

Persistent identifier:: 856342815

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856342815

Language:: English

Additional Notes:: Volume 1-3 erschienen von 1986-1988

Editor:: Damen, M. C. J.

Document type:: Multivolume work

Volume

Persistent identifier:: 856343064

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Scope:: XV, 547 Seiten

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856343064

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,1)

Language:: English

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

Editor:: Damen, M. C. J.

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:: 1 Visible and infrared data. Chairman: F. Quiel, Liaison: N J. Mulder

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: Comparison of classification results of original and preprocessed satellite data. Barbara Kugler & Rüdiger Tauch

Document type:: Multivolume work

Structure type:: Chapter

45 Row- and Column- Doubling Rectification and Resampling with Bilinear Inter polation Classifi cation results of doubled and geometrically :ied Data Doubled 2d 4.03 9.02 8.25 28.54 34.90 15.04 I (%) lich disappear in result of doubled ling of data before ment of classifica- lds of data prepro- the results. The ns are briefly dis- influences of the rast enhanced data : linear histogram ;d out separately, neighbourhood re- ange in respect to is is valid for re- nhanced data. interpolated data t to the result of l occurs in isolated classes with a lot of highly structured areas show the greatest chang ing. The use of contrast enhanced data for rectifica tion and resampling instead of original data seems to show a slightly better accuracy. Classification of resampled data by bilinear interpo lation may be improved if a row- and column doubling before rectifying is carried out. The above experiences indicate that contrast enhancement influences classification results slightly, either if data are geometrically preprocessed or not. Moreover classification of nearest neighbour resampled data leads to a result, which is only little influenced by preprocessing, even if a great geometric transformation (from satellite image to map grid) is performed. If bilinear interpolation for resampling is used the classi fication results will tend to more differences in respect to those of the original data. Bilinear interpolated data may be used for classification if a doubling of data before rectifying is carried out. The improvement of classification result is obvious, but study ing of classification accuracy needs more detailed investi gations. In the whole, the investigations dealed in this paper show the influences of various preprocessing methods. Therefore the purposes for the digital classification of different kinds of image preprocessing must be considered carefully. REFERENCES Forster, B.C., Trinder,3.C., 1984. Effects of Resampling of Landsat Data on Classification Accuracy. Aust. Л. Geod. Photo. Surv., 40, Липе 84: 53-67 Kähler, M., Milkus, I., 1986. Berlin from Space - A Digital ly Produced Satellite Image Map. Intern. Symp. on Mapping from Modern Imagery, Edingburgh September 1986 (in print) Realnutzungskartierung und Flächenbilanzierung, Maßstab 1:50000, im Bereich des Raumordnungsverbandes Rhein- Neckar. ifp-Institut für Planungsdaten und StadtBauPlan Frankfurt am Main/Darmstadt 1976

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