12 January 2018 Light field measurement based on the single-lens coherent diffraction imaging
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Abstract
Plenoptic camera and holography are popular light field measurement techniques. However, the low resolution or the complex apparatus hinders their widespread application. In this paper, we put forward a new light field measurement scheme. The lens is introduced into coherent diffraction imaging to operate an optical transform, extended fractional Fourier transform. Combined with the multi-image phase retrieval algorithm, the scheme is proved to hold several advantages. It gets rid of the support requirement and is much easier to implement while keeping a high resolution by making full use of the detector plane. Also, it is verified that our scheme has a superiority over the direct lens focusing imaging in amplitude measurement accuracy and phase retrieval ability.
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Cheng Shen, Jiubin Tan, Zhengjun Liu, "Light field measurement based on the single-lens coherent diffraction imaging", Proc. SPIE 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 106200K (12 January 2018); doi: 10.1117/12.2295577; https://doi.org/10.1117/12.2295577
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