Optimized reconstruction with noise suppression for interferenceless coded aperture correlation holography
| Autor: | Chao Liu, Tianlong Man, Yuhong Wan |
|---|---|
| Přispěvatelé: | LaserLaB - Molecular Biophysics, Physics of Living Systems |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
business.industry
Image quality Computer science Holography Image processing Iterative reconstruction 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics Noise Amplitude Optics Optical imaging law Temporal resolution 0103 physical sciences Coded aperture Electrical and Electronic Engineering business Engineering (miscellaneous) |
| Zdroj: | Liu, C, Man, T & Wan, Y 2020, ' Optimized reconstruction with noise suppression for interferenceless coded aperture correlation holography ', Applied Optics, vol. 59, no. 6, pp. 1769-1774 . https://doi.org/10.1364/AO.381635 Applied Optics, 59(6), 1769-1774. The Optical Society |
| ISSN: | 2155-3165 1559-128X |
| DOI: | 10.1364/AO.381635 |
| Popis: | A modified nonlinear reconstruction technique with a noise modulation parameter is proposed for interferenceless coded aperture correlation holography (I-COACH), and thus the signal-to-noise ratio of a reconstructed image is improved without sacrifice of the field of view and temporal resolution of the system. In order to obtain the optimal reconstructed image, no-reference structural sharpness (NRSS) is introduced as the evaluation metric of reconstructed image quality during nonlinear reconstruction. On the other hand, the noise modulation function is built in order to analyze the effect of phase on noise when the amplitude of the point spread hologram and object hologram is unity of 1. Both the NRSS and noise modulation functions are combined with nonlinear reconstruction in I-COACH for improving imaging performance. The validities of the proposed method under different experimental conditions have been demonstrated by experiments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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