The development of new photogrammetric software for automatic generation of high-quality geo products

초록

The geometric processing of various remote sensing images has become an important issue in the spatial information industry. In this research, an accuracy of three dimensional (3-D) mapping and ortho-image using various satellite images was analyzed using a newly developed photogrammetric software. This software has the latest techniques of an optimized sensor modelling, ortho-image generation and automated Digital Elevation Model (DEM) generation for diverse remote sensing images. Furthermore, it is capable of 3-D mapping by integration of multiple images and multiple sensors. In this research, we used the software to test an accuracy of 3-D points and ortho-image generated from Kompsat-2, Ikonos, QuickBird, Spot-5 high resolution satellite images. In addition to handling basic single-sensor stereo images, images from dual- and multi-sensor images were geo-corrected and ortho-rectified automatically. Outputs were assessed by comparing reliable reference data. 3-D mapping results evaluated using independent check points showed an accuracy of 1~2 pixels or better and it could be observed that the ortho-image results are consistent with the reference map after being rectified by the software. The developed software provides most of the critical geo-processing modules of various remote sensing images and it is expected that the software can be widely used to meet the demand on the high-quality geo products.