For high-fidelity single-pixel complex-amplitude measurement, we implement robust and regularized wavefront separation by integrating multi-distance correlated reconstruction with constrained alternating projection retrievals. An adaptive dynamic weighting mechanism for group-wise wavefront updates further reinforces the stability and accuracy of imaging convergence. Additionally, a compressed phase retrieval driven by sparsity priors markedly optimizes efficiency by enabling wavefront reconstruction with single-frame diffraction. The proposed method allows flexible imaging with different-frame diffraction, promising it as a plug-and-play solution for high-fidelity single-pixel complex-field detection.
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For high-fidelity single-pixel complex-amplitude measurement, we implement robust and regularized wavefront separation by integrating multi-distance correlated reconstruction with constrained alternating projection retrievals. An adaptive dynamic weighting mechanism for group-wise wavefront updates further reinforces the stability and accuracy of imaging convergence. Additionally, a compressed phase retrieval driven by sparsity priors markedly optimizes efficiency by enabling wavefront reconstruction with single-frame diffraction.
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Optical Encryption Using Attention-Inserted Physics-Driven Single-Pixel Imaging.
Sensors (Basel)
February 2024
Center for Quantum Technology Research, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement of Ministry of Education, School of Physics, Beijing Institute of Technology, Beijing 100081, China.
Optical encryption based on single-pixel imaging (SPI) has made great advances with the introduction of deep learning. However, the use of deep neural networks usually requires a long training time, and the networks need to be retrained once the target scene changes. With this in mind, we propose an SPI encryption scheme based on an attention-inserted physics-driven neural network.
View Article and Find Full Text PDFIt is well recognized that it is difficult to develop an optical system to retrieve effective information when dynamic and turbid water exists in an optical channel. It could be more challenging to incorporate dual or multiple modalities in one optical system. In this Letter, we report a dual-modality optical system for single-pixel imaging (SPI) and transmission through scattering media.
View Article and Find Full Text PDFIt is well recognized that it is challenging to realize high-fidelity and high-robustness ghost transmission through complex media in free space using coherent light source. In this paper, we report a new method to realize high-fidelity and high-robustness ghost transmission through complex media by generating random amplitude-only patterns as 2D information carriers using physics-driven untrained neural network (UNN). The random patterns are generated to encode analog signals (i.
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