Systems for data processing, anaylsis and representation

Allam, Mosaad; Plunkett, Gordon

Bibliographic data

Monograph

Persistent identifier:: 1067490280

Title:: Systems for data processing, anaylsis and representation

Sub title:: ISPRS Commission II Symposium : June 6 - 10, Ottawa, Canada

Scope:: 1 Online-Ressource (XX, 530 Seiten)

Year of publication:: 1994

Place of publication:: Ottawa

Publisher of the original:: The Surveys, Mapping and Remote Sensing, Natural Resources Canada

Identifier (digital):: 1067490280

Illustration:: Illustrationen

Signature of the source:: ZS 312(30,2)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.

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

Editor:: Allam, Mosaad; Plunkett, Gordon

Corporations:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Adapter:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Founder of work:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Other corporate:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

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:: Monograph

Collection:: Earth sciences

Chapter

Title:: [Wednesday, June 8, 1994]

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: [Session G-2 WG II/5 - Integrated Production Systems]

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: DIGITAL ORTHOPHOTO THE BASE MAP OF THE FUTURE J. Clark Beattie

Write comment:: Text parallel in englischer und französischer Sprache abgedruckt.

Document type:: Monograph

Structure type:: Chapter

iw 1ors des ffectuer rent des S ont la n de la our les mérique é qu'elle lecte de ation et hophoto ; pros et données Jue sera ogie. INTRODUCTION New computer technology, improved software systems and overall computer awareness of individuals has greatly impacted the way in which we carry out daily lives. GIS technology has been the benefactor of these changes since one of the major constraints of early systems was the large amount of computer power required to make them work. Hardware and software advances have brought GIS to the desktop and the corresponding benefits to the organization are beginning to be realized. Another major constraint to developing successful systems is providing current, accurate, reliable spatial data to serve as the foundation for GIS applications. Some vector data sets are available over a wide area, however, they usually require a substantiai amount of effort to bring them into a GIS usable form. In the case of digital topographic map data the problem is further exacerbated by the fact that data which are available are often at small scales and are not up to date and therefore may not meet the spatial accuracy or content requirements of the user. One new technology which has proven itself over the past few years is Digital Orthophoto Imagery (DOI). Data products made using DOI technology can provide a cost effective solution to the mapping problem while at the same time delivering a data set which provides substantial extra value to the GIS user. This paper will explore the concepts behind DOI, examine the pros and cons for DOI as a GIS data set and relate the experiences to date of Linnet Graphics International (LGI) in producing DOI data for the Manitoba Land Related Information System (MLRIS). WHAT IS DOI DOI technology evolved out of the remote sensing community in response to the requirement to spatially correct digital data obtained from satellite sensors. In order to use these data for analysis it is necessary to remove the distortions caused by sensor operation and to provide an orthogonal picture which can be oriented to fit the earth based geodetic reference system. With these corrections performed it is possible to accurately locate the digital data relative to it's corresponding place on the earth surface and thereby enhance the useability of the data for analysis purposes. The restitution of data obtained from space based platforms requires not only the modelling of complex geometry, digital elevation terrain data and sensor performance Characteristics, but also requires the manipulation of large raster data sets. These same principles, when applied to imagery obtained from aerial camera system, have resulted in the development of DOI technology. Early systems developed for this purpose required extensive computing power, however, the latest systems are taking advantage of PC processing power and are providing the rectification functionality on the desk top. Full production systems still require strong computer systems but the functionality of DOI is being found in most GIS vendor Software today. In the traditional mapping community the procedures and technology for producing hard copy orthophoto maps has been well known and used for almost thirty years. Although these products provided users with an enhanced presentation of traditional topographic features, the fact that 281

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