Design and Development of an On-line Integrated Photogrammetry and GIS System for Direct Input of Fully Structured Data to GIS

One of the important stages in the implementation of a GIS is referred to preparation of data to be entered to the system. To produce spatial data for entering to GIS using photogrammetric techniques, common and current method is to utilize photogrammetric and GIS systems individually (off-line procedure). Preparing spatial data on the basis of the mentioned method has a lot of problems, such as: difficulties in conversion process of spatial data from CAD based data to GIS, reduction of the spatial data accuracy in editing process, impossibility of simultaneous attribute data adding to spatial data and increasing the time and cost in data production and preparation process. By on-line integration of photogrammetry and GIS, feature digitizing from photogrammetric models can be performed in an interface GIS environment. In this way, generated data can be saved with standard structure and format defined by GIS environments and directly used for GIS analysis without the need for further editing. In this research, a software package called On-line Integrated Photogrammetric GIS (OIPGIS) was developed and successfully implemented. Above system overcomes the mentioned problems, significantly saves time (around 37 percent) and cost (around 10 percent) of spatial data production to be used in GIS and reduces distance between spatial data production system and GIS.