23 April 2017 Accurate reconstruction of digital holography using frequency domain zero padding
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Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103235H (2017) https://doi.org/10.1117/12.2267539
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of
Abstract
We propose an image reconstruction method of digital holography for getting more accurate reconstruction. Digital holography provides both the light amplitude and the phase of a specimen through recording the interferogram. Since the Fresenl diffraction can be efficiently implemented by the Fourier transform, zero padding technique can be applied to obtain more accurate information. In this work, we report the method of frequency domain zero padding (FDZP). Both in computer-simulation and in experiment made with a USAF 1951 resolution chart and target, the FDZD gave the more accurate rconstruction images. Even though, the FDZD asks more processing time, with the help of graphics processing unit (GPU), it can find good applications in digital holography for 3-D profile imaging.
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Jun Geun Shin, Jun Geun Shin, Ju Wan Kim, Ju Wan Kim, Jae Hwi Lee, Jae Hwi Lee, Byeong Ha Lee, Byeong Ha Lee, } "Accurate reconstruction of digital holography using frequency domain zero padding", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103235H (23 April 2017); doi: 10.1117/12.2267539; https://doi.org/10.1117/12.2267539
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