12 December 2017 Two-step rectification method for distortions caused by aircraft roll in push-broom hyperspectral images
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Abstract
Aircraft roll is an important reason for geometric distortion of airborne push-broom hyperspectral images. A two-step rectification method is proposed to correct the geometric distortions of push-broom hyperspectral images caused by aircraft roll. According to the distortion characteristics of hyperspectral images, image distortion is mainly classified into two categories: high frequency distortion and large amplitude distortion. For high frequency distortion, the first-step correction is implemented by slide matching of segmented windows between adjacent scan lines. For large amplitude distortion, the second-step correction is achieved using ground control points and linear features between a reference map and an uncorrected image. Experimental results show that the proposed method can eliminate image distortion caused by aircraft roll effectively.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hao Fang, Binlin Hu, Shijing Hao, Yuanjiang Wu, Yinnian Liu, Aihua Li, "Two-step rectification method for distortions caused by aircraft roll in push-broom hyperspectral images," Journal of Applied Remote Sensing 11(4), 046019 (12 December 2017). https://doi.org/10.1117/1.JRS.11.046019 . Submission: Received: 15 June 2017; Accepted: 17 November 2017
Received: 15 June 2017; Accepted: 17 November 2017; Published: 12 December 2017
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