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학술지 Fast hologram reconstruction algorithm in digital in-line holography using Toeplitz matrix based deconvolution
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저자
Anik Ghosh, Rishikesh Kulkarni, 신승협, Pranab Kumar Mondal
발행일
202212
출처
Optics and Lasers in Engineering, v.159, pp.1-8
ISSN
0143-8166
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.optlaseng.2022.107198
협약과제
22ZH1300, 오감·감성 체험 초실감 상호작용 기술연구, 박중기
초록
A new hologram reconstruction algorithm is proposed for digital in-line holography configuration using the Toeplitz matrix based deconvolution. The variable separable property of the convolution kernel associated with hologram recording and reconstruction process allows the matrix formulation of deconvolution. A procedure to avoid the aliasing effect in the reconstructed images is discussed. The proposed method is found to provide improved computational efficiency in comparison to the conventional FFT based deconvolution approach without compromising the reconstruction quality. Simulation and experimental results substantiate the practical applicability of the proposed method.
KSP 제안 키워드
Aliasing effect, Computational Efficiency, Digital in-line holography, Hologram reconstruction, Matrix formulation, Reconstruction quality, convolution kernel, reconstructed image, reconstruction algorithm, reconstruction process, separable property