Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection: Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection

Laidet, L.

Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection (Volume 2)

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Persistent identifier:: 1669258823

Title:: Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection

Sub title:: Toulouse, 13 - 17 Septembre 1982

Year of publication:: 1982

Place of publication:: Toulouse

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1669258823

Language:: English

Editor:: Laidet, L.

Corporations:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Adapter:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Founder of work:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Other corporate:: International Society for Photogrammetry and Remote Sensing, Commission VII, Interpretation of Data

Document type:: Multivolume work

Volume

Persistent identifier:: 1669259897

Title:: Actes du Symposium International de la Commission VII de la Société Internationale de Photogrammétrie et Télédétection

Scope:: XV, 415 Seiten

Year of publication:: 1982

Place of publication:: Toulouse

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1669259897

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(24,7,2)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist ermittelt.

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

Editor:: Laidet, L.

Corporations:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Adapter:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Founder of work:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Other corporate:: International Society for Photogrammetry and Remote Sensing,, Commission VII, Interpretation of Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: WG VII-1 METHODOLOGIE POUR L'AMELIORATION ET LA CLASSIFICATION THEMATIQUE DES DONNEES VISIBLES ET INFRAROUGE. - METHODOLOGY FOR ENHANCEMENT AND THEMATIC CLASSIFICATION OF VISIBLE AND INFRARED DATA.

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: [SESSION 19]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: The Expanded PDCS Digital Image Processing System (EPDCS) by G. H. Xu [...]

Document type:: Multivolume work

Structure type:: Chapter

The Expanded PDCS Digital Image Processing System (EPDCS) by G. H. Xu Chinese Academy of Forestry Wan Shou Shan, Peking, Chin& Abstract This paper is a research report describing the Computer Soft- ware System EPDCS, developed for processing remote sensing imagery data. The programme system has grown out of the PDCS programmes which the author developed and implemented in Sweden. The system includes the following groups of programmes: -Tape handling and subscene extraction -Statistics and histognomne print -Image enhancement -TIraining area extraction,calculation and display -Supervised classification -Unsupervised classification -Cleaning-up of a classified map -Àceuracy evaluation -Result output In this paper, discussions are made about the techniques for the preprocessing, enhancement and classification of MSS data, with greater elaboration on the classification. The system has been used in land use mapping and environmental monitoring. The results have shown some promise of usability in practical work and will be reported in another paper. INTRODUCTION One application of remote sensing is the use of Multi Spectral Scanner (MSS) date for land use inventory over larg areas. This report discusses the Expanded PDCS programme system developed for processing remctely sensed MSS data by the computer systems, both at the Department of Physical Geography, University of Stockholm and at the Chinese Academy of Forestry. The programme system consists of a series of computer routines for image data handling, manipulation and classification, with the following two points considered in the course of the development of the programme package: : 1. The programme system should be suitable for research work. 2. It should be possible for a user to run the programmes even without prior experience of advanced computer programmes. Proceeding from these points, on the one hand, the EPDCS system was designed to derive different methods for dealing with the same subject. For instance, there are several methods for an image en- hancement ,tbraîning area extraction,supervised classification and NU classification. That is useful either for selecting optimum method or for determining suitable condition of the diffe- rent method, On the other hand, the programme system was written

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