Research of wide swath image mosaic technology based on area-array detector adopting whiskbroom scanning mode

Sai Li; Yin Qiu; Yong Hu; Cai-Lan Gong; Hong-Xing Qi; Yi-Kun Wang

doi:10.1117/12.2521929

12 March 2019 Research of wide swath image mosaic technology based on area-array detector adopting whiskbroom scanning mode

Sai Li, Yin Qiu, Yong Hu, Cai-Lan Gong, Hong-Xing Qi, Yi-Kun Wang

Author Affiliations +

Proceedings Volume 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application; 1102336 (2019) https://doi.org/10.1117/12.2521929
Event: Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 2018, Xi'an, China

Abstract

A new method of splicing infrared thermal Unmanned aerial vehicle(UAV) image with special acquisition mode is presented. We used the bi-directional whiskbroom scanning frame infrared UAV (300,000 pixels) developed by the Shanghai Institute of Technical Physics,Chinese Academy of Sciences(SITP) to obtain the image of an area in haiyan,Zhejiang province.In order to get more accurate temperature data in a wide range, correction and optimization of the mosaic strategy of this infrared image are needed.In this paper, an orthographical correction model based on drone position and orientation system (POS) parameters was established, By optimizing scale invariant feature transform (SIFT) matching parameters and Random Sampling Consensus (RANSAC) algorithm, more reliable matching results were obtained.After rough calculation of adjacent images by image location to calculate whether it is an adjacent image, this can reduce the operation time of the splicing algorithm.The overlapping area images fused with the multi-resolution pyramid algorithm. Finally, the large area image and temperature inversion map of the study area were obtained. Inversion results showed that the error of temperature inversion less than 0.2 degree by comparing with the original temperature before unspliced.It can meet the subsequent application requirements of the UAV infrared image.

Citation Download Citation

Sai Li, Yin Qiu, Yong Hu, Cai-Lan Gong, Hong-Xing Qi, and Yi-Kun Wang "Research of wide swath image mosaic technology based on area-array detector adopting whiskbroom scanning mode", Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 1102336 (12 March 2019); https://doi.org/10.1117/12.2521929

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