期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2006
卷号：XXXVI Part 1
出版社：Copernicus Publications
摘要：The correct georeferencing of remote sensing images is a fundamental task in the photogrammetric processing for orthoimages and DEM generation and for feature extraction. In this paper we focus on the georeferencing of pushbroom sensors with rigorous models, that is, approaches that are based on the photogrammetric collinearity equations and describe the exact acquisition geometry of the sensors. By solving a bundle adjustment, the sensor external orientation and additional geometric parameters describing the internal orientation are estimated. We tested two rigorous models developed in academic groups for the georeferencing of a stereopair from QuickBird. The first model (M1) has been implemented at the University La Sapienza, Rome. It is specifically designed for the orthorectification of pushbroom sensors carried on satellite platforms with asynchronous acquisition mode, like EROS-A and QuickBird. The model, implemented in the software SISAR, reconstructs of the orbital segment during the image acquisition through the knowledge of Keplerian orbital parameters, the sensor attitude, internal orientation and the self-calibration parameters. The second model (M2) is a rigorous sensor model for pushbroom linear array sensors, carried on airborne or spaceborne platforms. It estimates the parameters modelling the sensor internal and external orientation through a bundle adjustment, using a suitable number of ground control points. Our research included the orientation of the single images with rigorous model M1, the orientation of the stereo pair with rigorous model M2 and the comparison of the results with a rigorous model contained in commercial software (PCI OrthoEngine). The results demonstrate that by using rigorous models it is possible to achieve RMSE smaller than 1 pixel in the CPs if a sufficient number of GCP s are used
