Journal
OPTIK
Volume 228, Issue -, Pages -Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2020.165490
Keywords
Coherent diffractive imaging; Scattering media; Single-shot; Power-spectrum; Complex structures
Categories
Funding
- National Science Foundation of China [7301506]
- [61070040]
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The study presents an optimized single-shot coherent power-spectrum imaging method for real-time imaging of hidden objects with complex structures, demonstrating quick reconstruction of clear object images with low error rate by applying nonlinear modulus and necessary optimized algorithm, leading to significantly improved success rate and resuming time for image reconstruction of complex objects hidden by scattering media.
The single-shot coherent power-spectrum imaging method has the potential to improve the algorithm speed for obtaining images of objects hidden by opaque scattering media under coherent illumination. In order to extend the single-shot coherent power-spectrum imaging method for real-time imaging of hidden objects with complex structures and large non-sparsity, we propose an optimized method. By applying strengthened Fourier-domain constraints with nonlinear modulus and corresponding necessary optimized algorithm to the method, the experimental results demonstrate that, with only one piece of power-spectrum pattern obtained by a camera separated by scattering media from the object with complex structures, our imaging method can quickly reconstruct the clear object image with low error rate. Furthermore, the success rate and the resuming time of the image reconstruction process for complex objects hidden by scattering media had been much improved, which make the method prospective for wide application range of real-time coherent scattering imaging of practical objects.
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