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A fast calculation method of optical transfer function using GPU parallel computation

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Abstract

As a criterion used to describe the performance of an optical system, optical transfer function (OTF) can be calculated by autocorrelation of pupil function, dual Fourier transform, Zernike polynomial fitting, and so on. A fast OTF calculation method based on dual Fourier transform and graphics processing unit (GPU), in which the redundant computations of point spread function (PSF) and OTF are removed, is proposed in this paper. For an optical system with the pupil function of 512 × 512 pixels, the OTF computation is implemented on GPU platform. The result shows that the proposed method using the 128 × 128 pixels central regions of the PSF enhances the computational efficiency of about 4.88 times than the method using standard CUFFT.

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Acknowledgments

This work was funded by the National Natural Science Foundation of China (Grant No. 11178004) and Library Innovation Foundation of the Chinese Academy of Sciences (Grant No. YJ14K018). We also acknowledge the reviewers whose comments are very valuable and helpful for revising and improving this paper.

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Authors and Affiliations

  1. Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, 610209, China

    Quan Zhang, Hua Bao & Changhui Rao

  2. School of Optoelectronic Information, University of Electronic Science and Technology of China, Chengdu, 610054, China

    Quan Zhang & Zhenming Peng

  3. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, 610209, China

    Quan Zhang, Hua Bao & Changhui Rao

  4. University of Chinese Academy of Sciences, Beijing, 100039, China

    Quan Zhang

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  1. Quan Zhang
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  2. Hua Bao
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Correspondence to Changhui Rao.

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Zhang, Q., Bao, H., Rao, C. et al. A fast calculation method of optical transfer function using GPU parallel computation. Opt Rev 22, 903–910 (2015). https://doi.org/10.1007/s10043-015-0141-2

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  • DOI: https://doi.org/10.1007/s10043-015-0141-2

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