Chunyang WANG, Yong KONG, Huan LI, Hu WU, He ZHANG, Meng WANG. Digital holographic speckle denoising method based on compound modulation of object light[J]. Journal of Applied Optics, 2023, 44(2): 275
- Journal of Applied Optics
- Vol. 44, Issue 2, 275 (2023)
Fig. 1. Formation principle of speckle noises
Fig. 2. Random phase superposition
Fig. 3. Structure diagram of quartz depolarizer
Fig. 4. Structure diagram of electronically controlled liquid crystal diffuser
Fig. 5. Structure diagram of optical path
Fig. 6. Comparison of reconstruction images of several methods
Fig. 7. 3D spectrogram obtained by normalized processing of figure 6
Fig. 8. 3D frequency spectrum cross-section diagram corresponding to figure 7
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Table 1. Objective indicators of reconstructed images of dice under different methods
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Table 2. Objective indicators of reconstructed images of coin under different methods
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