Mingda Liang, Li Chen, Weitao Lin, Yonghao Chen. A Speckle Noise Reduction Method for Lensless Fourier Transform Digital Holography[J]. Laser & Optoelectronics Progress, 2018, 55(11): 110901
- Laser & Optoelectronics Progress
- Vol. 55, Issue 11, 110901 (2018)
Fig. 1. Lensless Fourier transform digital hologram record optical path diagram
Fig. 2. Schematic of SDM method
Fig. 3. Schematic of digital hologram division
Fig. 4. Lensless Fourier transform digital holography optical path diagram
Fig. 5. Lensless Fourier transform digital holographic reconstructed images. (a) Coins; (b) dices
Fig. 6. Equivalent number of looks changes with the increase of the number of sub-reconstructed images. (a) Dice; (b) coin
Fig. 7. Reconstructed images using proposed method and SDM method. (a) Proposed method, dices; (b) proposed method, coins; (c) SDM method, dices; (d) SDM method, coins
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Table 1. Processing time of two methodss
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Table 2. Edge preservation index of reconstructed image improved by two methods
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