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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2005, Vol. 6 Issue ( 6): 3-    DOI: 10.1631/jzus.2005.A0492
    
A two-step rectification algorithm for airborne linear images with POS data
TUO Hong-ya, LIU Yun-cai
Institute of Image Processing & Pattern Recognition, Shanghai Jiaotong University, Shanghai 200030, China
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Abstract  Rectification for airborne linear images is an indispensable preprocessing step. This paper presents in detail a two-step rectification algorithm. The first step is to establish the model of direct georeference position using the data provided by the Positioning and Orientation System (POS) and obtain the mathematical relationships between the image points and ground reference points. The second step is to apply polynomial distortion model and Bilinear Interpolation to get the final precise rectified images. In this step, a reference image is required and some ground control points (GCPs) are selected. Experiments showed that the final rectified images are satisfactory, and that our two-step rectification algorithm is very effective.

Key words： Image Processing & Pattern Recognition Airborne linear image      POS data      Two-step rectification algorithm      Direct georeference position      Polynomial distortion model     
Received: 15 June 2004     
CLC:  TP75  
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TUO Hong-ya
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TUO Hong-ya, LIU Yun-cai. A two-step rectification algorithm for airborne linear images with POS data. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6( 6): 3-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.A0492     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2005/V6/I 6/3

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