1. The Third Academy of Engineering of Surveying and Mapping, Chengdu 610500, China;
2. Satellite Surveying and Mapping Application Center, National Administration of Surveying, Mapping and Geoinformation, Beijing 100830, China
The conventional way to emend errors of rational polynomial coefficients (RPC) is carried out by a polynomial transform between metrical image point coordinates and projective point coordinates from ground points,but in such a performance,the number of parameters will increase,and the number of parameters changes along with the form of the polynomial,which increases the utilization difficulties. In this paper,the authors consider that the nature of RPC is analogous to that of the attached polynomial parameters,and therefore propose that the errors of RPC parameters can be eliminated by emending partial RPC. The experimental results show that the ideal point precision can be attained without using additional parameters,and the precision is better than that of the traditional means.
刘江, 岳庆兴, 邱振戈. RPC校正方法研究[J]. 国土资源遥感, 2013, 25(1): 61-65.
LIU Jiang, YUE Qingxing, QIU Zhenge. Research on the approach to RPC emendation. REMOTE SENSING FOR LAND & RESOURCES, 2013, 25(1): 61-65.
[1] Vincent C,Hu T.Investigation on the rational function model[C].ASPRS 2000 Annual Conference Proceedings,2000:22-26.[2] Yang X H.Accuracy of rational function approximation in photogrammetry[C].ASPRS 2000 Annual Conference Proceedings,2000:22-26.[3] Dowman I,Dolloff J T.An evaluation of rational functions for photogrammetric restitution[J].International Archives of Photogrammetry and Remote Sensing,2000,19(3):254-266.[4] Tao V C,Hu Y.A comprehensive study of the rational function model for photogrammetric processing[J].PE&RS,2001,67(12):1347-1357.[5] Liu J,Zhang Y S,Wang D H.Precise positioning of high spatial resolution satellite images based on RPC models[J].Acta Geodaetica et Cartographica Sinica,2006,35(1):30-34.[6] Dial G.RPC replacement camera models,the international archives of the photogrammetry[J].Remote Sensing and Spatial Information Sciences,2005,34(30):7-11.[7] Dial G.IKONOS accuracy without ground control[C]//Proceedings of ISPRS Commission I Mid-Term Symposium,2002:10-15.[8] Grodecki J,Dial G.IKONOS geometric accuracy validation[C]//Pecora 15/Land Satellite Information IV/ISPRS Commission I/FIEOS Conference Proceedings,2002:10-15.[9] Grodecki J,DialBlock G.Block adjustment of high-resolution satellite images described by rational polynomials[J].Photogrammetric Engineering and Remote Sensing,2003,69(1):59-68.