A push-broom compressive imaging system with situ calibration function for encoding mask

Lei Wang; Zhengzheng Shao; Jiying Liu; Qianwen Nie; Hui Jia; Suian Dai; Xiaofeng Wang; Jubo Zhu; Xiujian Li

doi:10.1117/12.2267747

8 March 2017 A push-broom compressive imaging system with situ calibration function for encoding mask

Lei Wang, Zhengzheng Shao, Jiying Liu, Qianwen Nie, Hui Jia, Suian Dai, Xiaofeng Wang, Jubo Zhu, Xiujian Li

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 1025508 (2017) https://doi.org/10.1117/12.2267747
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

Compressive imaging（CI）can offer a versatile improvements for imaging systems, such as smaller compressed data volume and super-resolution. Among various methods to realize Compressive imaging, pushing encoding mask has attracted the most attention with its compatibility to the space remote sensing. However, complex pre- calibrations are usually needed for calibrating the encoding mask to achieve the measurement matrix for the image reconstruction. Herein, we design a pushing compressive imaging system which fixed with the function of situ calibration of the encoding mask. The pushing compressive imaging system was constructed, and the experimental results confirmed that the system had the ability for data compression and super-resolution. And above all, the system can avoid the complex pre-calibration, which makes the on-orbit calibration feasible. In the simulations, twice, three times and four times resolutions higher than the captured image’s resolution are performed respectively, which confirm that the method can improve the target image resolution based on the relative low resolution raw captured target images. Furthermore, by pushing the mask precisely which can be considered equivalent to the real pushing imaging, we have reconstructed the true super-resolution target image accurately based on the mask calibration and 6 captured pushing imaging frames.

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Lei Wang, Zhengzheng Shao, Jiying Liu, Qianwen Nie, Hui Jia, Suian Dai, Xiaofeng Wang, Jubo Zhu, and Xiujian Li "A push-broom compressive imaging system with situ calibration function for encoding mask", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 1025508 (8 March 2017); https://doi.org/10.1117/12.2267747

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KEYWORDS

Calibration

Imaging systems

Compressive imaging

Computer programming

Image resolution

Super resolution

Image restoration

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