Accurate reconstruction of digital holography using frequency domain zero padding

Jun Geun Shin; Ju Wan Kim; Jae Hwi Lee; Byeong Ha Lee

doi:10.1117/12.2267539

23 April 2017 Accurate reconstruction of digital holography using frequency domain zero padding

Jun Geun Shin, Ju Wan Kim, Jae Hwi Lee, Byeong Ha Lee

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.

Citation Download Citation

Jun Geun Shin, Ju Wan Kim, Jae Hwi Lee, and 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); https://doi.org/10.1117/12.2267539

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