AN INVESTIGATION OF DIGITAL ORTHOPHOTOS FOR LARGE SCALE MAPPINGCADASTRE RENOVATION

摘要

Photogrammetric softwares, functions and applications were tremendously effected by developments of image proccessing technologies in past decades. One of the applications of photogrammetric softwares is digital orthophoto production. Most of orthophoto products are used of planning, monitoring, GIS application,etc. A digital orthophoto plays great important role to take fast decision. Especially to control activities in large areas and countywide. Besides this, according to parallel development image processing technologies, it is necessary to test an orthophoto for accuracy, cost and time consuming.lt is important to complete whole cadastral mapping and to fast renovation of cadastre for large countries, like us. To do that it can be a usefull way to use orthophotos for renovation, if the accuracy, applicable, reliable and cost of orthophoto is sufficient. So it can be called "fast cadastre" or "mobile cadastre". This paper presents a test results by including geometric accuracy, cost of an orthophoto and required time to produce an orthophoto for large scale mapping. An investigation carried out especially for large scale cadastral mapping and cadastral renovation purposes.