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《Acta Optica Sinica》 2017-08
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Image Registration Method Based on Geo-Location Information and Precision Analysis

Qiao Chuan;Ding Yalin;Xu Yongsen;Yao Yuan;Wang Hao;Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences;University of Chinese Academy of Sciences;  
Traditional image registration techniques are inadaptable to aerial remote sensing image which does not have obvious feature points,such as ocean,desert,and grassland.A registration algorithm is proposed for aerial remote sensing image based on geo-location information.Using aircraft position and attitude information measured by airborne position and orientation system and the gimbal angle from the encoder in an aerial camera,the projection of registration point in geodetic coordinate system is solved by homogeneous coordinate transformation.Using the earth ellipsoidal model which is defined by the world geodetic system-84,the longitude and latitude information for matching points are solved,and the matching points with the same geo-location information are registered.The influence of the aircraft position and attitude and the gimbal angle on geo-location accuracy and registration accuracy is analyzed with Monte Carlo method.Experiments were carried out using actual aerial remote sensing images.Experimental results show that the registration accuracy is less than 3m,and the positioning accuracy of sea control point in remote sensing image is less than 35 m,when the flight height of plane is below 2000 m and the photography inclination angle is less than 18°.
【Key Words】: remote sensing image registration geo-location information error analysis target geo-location
【Fund】: 国家自然科学基金青年基金(61405192);; 吉林省科技发展计划(20140520114JH)
【CateGory Index】: TP751
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