Abstract
Terahertz imaging is new trend of space optical remote sensing detection field. However, the resolution of Terahertz imaging is limited by the manufacture level of the Terahertz detector. In this paper we present the image processing method based Terahertz oversampling system. The multi-frames of observing same region are collected by our Terahertz imaging system. The shift displacement between adjacent frames is sub-pixel on the horizontal and vertical direction. The multi-frames are filtered by the norm constraint and enhancement. The higher resolution grid is reconstructed after the staggered frames are achieved. It shows that background noise is constrained and target edge is more continuous by the proposed method. The evaluation index of image quality is raised, which means that proposed method is better than other conventional method. The detail information of processed image is enhanced. The proposed oversampling method is special for dim target and background clutter data such as terahertz and infrared image, combining with the p2 norm optimization and bilateral filtering.
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References
Na, H.Y.: Improvement of Terahertz Active Imaging System. Nanjing University, Nanjing (2016)
Shams, M.B., Jiang, Z.G., Rahman, S., et al.: Approaching real-time terahertz imaging using photo-induced reconfigurable aperture arrays. Terahertz Physics, Devices, and Systems VIII: Advanced Applications in Industry and Defense, pp. 910207-1–910207-8 (2014)
Kannegulla, A., Jiang, Z., Rahman, S.M., et al.: Coded aperture imaging using photo-induced aperture arrays for mapping terahertz beams. IEEE Transactions on Terahertz Science and Technology, pp. 321–327 (2014)
Gergelyi, D., Földesy, P., Zarándy, Á.: Scalable, “low-noise architecture for integrated terahertz imagers”. Int. J. Infrared Millimeter Waves. 36, 520–536 (2015)
Xu, L.M.: High Resolution Terahertz Image Processing. Xi’an Institute of Optics & Precision Mechanics, Chinese Academy of Sciences, Xi’an (2013)
Dong, J.M., Peng, X.Y., Ma, X.H., et al.: Progress of detection technology of ultra-broadband THz time-domain spectroscopy. Spectrosc. Spectr. Anal. 1277–1283 (2016)
Liu, Z.J., Zhang, Z., Zhou, F., et al. A geometrical mapping method optical imaging for space push-broom system. Spacecraft Recov. Remote Sens. 39–45 (2012)
Pan, H.B., Cong, M.Y., Zhang, W., et al.: Imaging model study of space objects from space remote sensor. J. Harbin Inst. Technol. 40, 1699–1702 (2008)
Wang, S.T., Zhang, W., Jin, L.H., et al.: Point target detection based on temporal-spatial over-sampling system. J. Infrared Millimeter Waves. 32, 68–72 (2013)
Chen, B.Y., Chen, F.S., Chen, G.L., et al.: A new method of improving spatial resolution of linear matrix scanner by over sample. Infrared Technol. 395–402 (2009)
Lin, X.L., Zhang, Z., Zhang, J.B.: Super-Resolution Reconstruction for Terahertz Pulsed Imaging. The 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (2017)
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Zhang, Z., Lin, XL., Zhang, JB., He, HY. (2020). An Oversampling Enhancement Method of the Terahertz Image. In: Urbach, H., Yu, Q. (eds) 5th International Symposium of Space Optical Instruments and Applications. ISSOIA 2018. Springer Proceedings in Physics, vol 232. Springer, Cham. https://doi.org/10.1007/978-3-030-27300-2_37
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DOI: https://doi.org/10.1007/978-3-030-27300-2_37
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