Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Pastuszczak, Anna"'
The usually reported pixel resolution of single pixel imaging (SPI) varies between $32 \times 32$ and $256 \times 256$ pixels falling far below imaging standards with classical methods. Low resolution results from the trade-off between the acceptable
Externí odkaz:
http://arxiv.org/abs/2206.02510
Publikováno v:
Opt. Express 29, 26685-26700 (2021)
The speed and quality of single-pixel imaging (SPI) are fundamentally limited by image modulation frequency and by the levels of optical noise and compression noise. In an approach to come close to these limits, we introduce a SPI technique, which is
Externí odkaz:
http://arxiv.org/abs/2205.12111
Publikováno v:
Optics Letters, Vol. 44(5), pp. 1241-1244 (2019)
We propose a method of reduction of experimental noise in single-pixel imaging by expressing the subsets of sampling patterns as linear combinations of vertices of a multidimensional regular simplex. This method may be also directly extended to compl
Externí odkaz:
http://arxiv.org/abs/1811.10348
Publikováno v:
Opt. Express vol. 26(16), pp. 20009-20022, (2018)
We present a closed-form image reconstruction method for single pixel imaging based on the generalized inverse of the measurement matrix. Its numerical cost scales linearly with the number of measured samples. Regularization is obtained by minimizing
Externí odkaz:
http://arxiv.org/abs/1804.10008
Publikováno v:
Sci. Rep. 8, 466 (2018)
Single-pixel imaging is an indirect imaging technique which utilizes simplified optical hardware and advanced computational methods. It offers novel solutions for hyper-spectral imaging, polarimetric imaging, three-dimensional imaging, holographic im
Externí odkaz:
http://arxiv.org/abs/1709.07739
Efficient adaptation of complex-valued noiselet sensing matrices for compressed single-pixel imaging
Publikováno v:
Appl. Opt. 55(19), 5141-5148 (2016)
Minimal mutual coherence of discrete noiselets and Haar wavelets makes this pair of bases an essential choice for the measurement and compression matrices in compressed-sensing-based single-pixel detectors. In this paper we propose an efficient way o
Externí odkaz:
http://arxiv.org/abs/1606.04535
Publikováno v:
Opt. Commun. vol. 383, pp. 446-452, (2017)
We introduce an efficient method for the reconstruction of the correlation between a compressively measured image and a phase-only filter. The proposed method is based on two properties of phase-only filtering: such filtering is a unitary circulant t
Externí odkaz:
http://arxiv.org/abs/1604.07751
Publikováno v:
Opto-Electron. Rev., 21, no. 4, pp. 355-366 (2013)
Layered metal-dielectric metamaterials have filtering properties both in the frequency domain and in the spatial frequency domain. Engineering their spatial filtering response is a way of designing structures with specific diffraction properties for
Externí odkaz:
http://arxiv.org/abs/1408.6344
Publikováno v:
Opt. Quant. Electron vol. 47, 89-97, (2015)
We derive periodic multilayer absorbers with effective uniaxial properties similar to perfectly matched layers (PML). This approximate representation of PML is based on the effective medium theory and we call it an effective medium PML (EM-PML). We c
Externí odkaz:
http://arxiv.org/abs/1406.1921
Autor:
Pastuszczak, Anna, Kotynski, Rafal
Publikováno v:
J. Appl. Phys. vol. 109, 084302 (2011)
We optimise the effective skin-depth and resolution of Ag-TiO2, Ag-SrTiO3, and Ag-GaP multilayers for imaging with sub-wavelength resolution. In terms of transmission and resolution the optimised multilayers outperform simple designs based on combine
Externí odkaz:
http://arxiv.org/abs/1102.3083