Ortho Rectification of Worldview-2 Satellite Image using DGPS Survey for Parcel Level Mapping

The use of very high resolution satellite images in photogrammetric works is increasing continuously, especially in works such as ortho images production or Digital Elevation Models extraction. A large number of new photogrammetric uses of Earth Observation data appear due to improvement of the geometric accuracy of the products. Ortho photo is an image which is being corrected geometrically so each object has to be situated on the corrected place consequently. The present study focus on the Ortho Rectification of Worldview-2 satellite imagery (with spatial resolution of 0.5 meter) for cadastral mapping under national land record modernization programme (NLRMP) for Haryana. The methods applied in this study are a linear polynomial correction using 3 Dimensional ground control points (GCPs), rational polynomial coefficient (RPC) correction without refinement and RPC correction with linear refinement using 3D GCPs. The ground control points (GCPs) were collected by means of differential ground positioning system (D-GPS-Survey). Investigation of the results was performed by examining the RMS error of DGPS points with check point and RMS error for RPC model.