A PHOTOGRAMMETRIC URBAN INFORMATION SYSTEM USING THE CPl PLOTTER

Abstract

An urban information system for the handling and analysis of urban data extracted from aerial photographs by means of the Cartographic Engineering CP1 plotter is described. With reference to two study areas in North Kowloon, Hong Kong, the simplicity, flexibility, speed of production and accuracy of the system is demonstrated. The conclusion is reached that the system can be further improved to serve the needs of urban planners and researchers who have a special interest in photogrammetry. Résumé On décrit un système d'extraction de données urbaines basé sur l'emploi des clichés aériens et du restituteur CP1. Deux essais ont été menes sur l'aire de North Kowloon (Hong Kong) prouvant la simplicité, la flexibilité, la vitesse et l'exactitude du procédé. Zusammenfassung Beschreibung eines städtischen Informationssystems zur Gewinnung und Analyse von Daten, die aus Luftbildern mit Hilfe des CP1‐Plotters von Cartographic Engineering gevonnen wurden. Demonstration der Einfachheit, Flexibilität, Schnelligkeit und Genauigkeit dieses Systems an Hand von 2 Testgebieten in North Kowloon in Honkong. Als Schlussfolgerung ergibt sich, dass das System weiter verbessert werden kann, um die Anforderungen von Stadtplanern und Wissenschaftlern zu erfüen, die ihr Interesse an der Photogrammetrie bekundet haben.

Obituaries

“…Lo was a prolific scholar and author with numerous publications which had appeared in some premier photogrammetric, remote sensing, geographic information science and geography journals (see, for example, Lo, 1970, 1978, 1981, 1987 in The Photogrammetric Record ). He authored or co‐authored 11 books including major textbooks on remote sensing and geographic information systems ( Geographical Applications of Aerial Photography , David and Charles, 1976; Applied Remote Sensing , Longman, 1986 ; Concepts and Techniques in Geographic Information Systems , Prentice Hall, 2002, 2007) that have been adopted by many universities.…”