Implementation of Solar Speckle Image Reconstruction Based on GPU

Abstract

Abstract: In ground-based solar observation, when the light passes through atmosphere, it will be affected by
atmospheric turbulence which will cause translation, distortion and blurring of the received image.
In order to eliminate or reduce the effects of atmospheric turbulence, post-image processing
technology was used to obtain high-resolution solar images. High-resolution image can be obtained
by post-facto reconstruction algorithm based on the speckle interferometry and speckle masking.
However, due to its complex calculation, the algorithm can not meet the requirement of real-time
detection. On the basis of the principle of the algorithm, solar speckle image reconstruction
algorithm has been parallelized by using CUDA parallel computing architecture in this research.
The experimental results show that a 2304 pixel$\times$1984 pixel image of TiO channel can be
reconstructed within 70 s under GPU environment. Compared with the program running on CPU, the speed-up radio can up to 7.

Key words: GPU, CUDA, image reconstruction, speckle interferometry, speckle masking, parallel computing

References 0

	[1]
	Li Fei. Phase Diversity Wavefront Sensing and Its Application in Image Restoration[D];
	Changsha: Doctorial Dissertation of Graduate School of National University of Defense Technology, 2011 (in Chinese).
	李斐. 相位差波前探测技术及其在图像恢复中的应用研究 [D]; 长沙:国防科学技术大学博士论文, 2011.
	[2]
	Jiang Wenhan. Adaptive optics technology [J]. Chinese Journal of Nature, 2006, 28(1): 7-13(in Chinese).
	姜文汉. 自适应光学技术[J]. 自然杂志, 2006, 28(1): 7-13.
	[3]
	Xiang Yongyuan, Liu Zhong, Jin Zhenyu, et al. High resolution solar image reconstruction method [J].
	Progress In Astronomy, 2016, 34(1): 94-110 (in Chinese).
	向永源, 刘忠, 金振宇, 等. 高分辨力太阳图像重建方法[J]. 天文学进展, 2016, 34(1):94-110.
	[4]
	Labeyrie A. Attainment of diffraction limited resolution in large telescopes by Fourier analysing speckle
	patterns in star images [J]. Astron Astrophys, 1970, 6(1): 85-7.
	[5]
	Weigelt G P. Modified astronomical speckle interferometry ``speckle masking''[J]. Optics Communications, 1977, 21(1): 55-59.
	[6]
	Ding Y Y. Image reconstruction in speckle interferometry [C]. Beijing:SPIE/COS Photonics Asia. International
	Society for Optics and Photonics, 2014: 92733C.
	[7]
	Li Xuebao. Research on Technologies of Massive Data Parallel Processing for
	Solar Telescope [D]. Yunnan: Doctorial Dissertation of Graduate University of Chinese
	Academy of Sciences (Yunnan Observatories), 2015 (in Chinese).
	李雪宝. 太阳望远镜海量数据并行处理技术研究[D].云南:中国科学院研究生院(云南天文台)博士论文,2015.
	[8]
	Xiang Yongyuan. Research on High Speed High Resolution Solar Image Reconstruction Algorithm [D].
	Yunnan: Doctorial Dissertation of Graduate University of Chinese Academy of Sciences(Yunnan Observatories), 2016 (in Chinese).
	向永源. 太阳高分辨高速重建算法的研究[D].云南:中国科学院研究生院(云南天文台)博士论文,2016.
	[9]
	W\"{oger F, Ferayorni A. Accelerated speckle imaging with the ATST visible broadband imager [J].
	Proceedings of SPIE-The International Society for Optical Engineering, 2012, 8451(4): 84511C.
	[10]
	Kolmogorov A N. The Local Structure of Turbulence in Incompressible Viscous Fluid for Very Large Reynolds Numbers [J].
	Proceedings Mathematical \& Physical Sciences, 1991, 434(1890): 9-13.
	[11]
	Von der L\"{uhe O. Estimating Fried's parameter from a time series of an arbitrary resolved object imaged
	through atmospheric turbulence [J]. Journal of the Optical Society of America A 1984, 1(5): 510-519.
	[12]
	Fried D L. Anisoplanatism in adaptive optics [J]. Journal of the Optical Society of America, 1982, 72(1): 52-61.
	[13]
	Zhong Libo. High-resolution reconstruction techniques of the solar images [D].
	Chengdu: Doctorial Dissertation of Graduate University of Chinese Academy of Sciences
	(Institute of Optics and Electronics), 2015 (in Chinese).
	钟立波. 太阳高分辨力图像重建技术研究[D].成都:中国科学院研究生院(光电技术研究所)博士论文, 2015.
	[14]
	Henry Wong, et al. Demystifying GPU Microarchitecture through Microbenchmarking [C].
	New York: Performance Analysis of Systems \& Software(ISPASS), 2010 IEEE International Symposium on. IEEE, 2010: 235-246.