A Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging
Abstract Single-pixel imaging is an alternate imaging technique particularly well-suited to imaging modalities such as hyper-spectral imaging, depth mapping, 3D profiling. However, the single-pixel technique requires sequential measurements resulting in a trade-off between spatial resolution and acq...
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2017
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oai:doaj.org-article:b9c7b5e28dff47e0b21493b3f491c3fd2021-12-02T11:40:45ZA Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging10.1038/s41598-017-03725-62045-2322https://doaj.org/article/b9c7b5e28dff47e0b21493b3f491c3fd2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03725-6https://doaj.org/toc/2045-2322Abstract Single-pixel imaging is an alternate imaging technique particularly well-suited to imaging modalities such as hyper-spectral imaging, depth mapping, 3D profiling. However, the single-pixel technique requires sequential measurements resulting in a trade-off between spatial resolution and acquisition time, limiting real-time video applications to relatively low resolutions. Compressed sensing techniques can be used to improve this trade-off. However, in this low resolution regime, conventional compressed sensing techniques have limited impact due to lack of sparsity in the datasets. Here we present an alternative compressed sensing method in which we optimize the measurement order of the Hadamard basis, such that at discretized increments we obtain complete sampling for different spatial resolutions. In addition, this method uses deterministic acquisition, rather than the randomized sampling used in conventional compressed sensing. This so-called ‘Russian Dolls’ ordering also benefits from minimal computational overhead for image reconstruction. We find that this compressive approach performs as well as other compressive sensing techniques with greatly simplified post processing, resulting in significantly faster image reconstruction. Therefore, the proposed method may be useful for single-pixel imaging in the low resolution, high-frame rate regime, or video-rate acquisition.Ming-Jie SunLing-Tong MengMatthew P. EdgarMiles J. PadgettNeal RadwellNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-7 (2017) |
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Medicine R Science Q Ming-Jie Sun Ling-Tong Meng Matthew P. Edgar Miles J. Padgett Neal Radwell A Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging |
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Abstract Single-pixel imaging is an alternate imaging technique particularly well-suited to imaging modalities such as hyper-spectral imaging, depth mapping, 3D profiling. However, the single-pixel technique requires sequential measurements resulting in a trade-off between spatial resolution and acquisition time, limiting real-time video applications to relatively low resolutions. Compressed sensing techniques can be used to improve this trade-off. However, in this low resolution regime, conventional compressed sensing techniques have limited impact due to lack of sparsity in the datasets. Here we present an alternative compressed sensing method in which we optimize the measurement order of the Hadamard basis, such that at discretized increments we obtain complete sampling for different spatial resolutions. In addition, this method uses deterministic acquisition, rather than the randomized sampling used in conventional compressed sensing. This so-called ‘Russian Dolls’ ordering also benefits from minimal computational overhead for image reconstruction. We find that this compressive approach performs as well as other compressive sensing techniques with greatly simplified post processing, resulting in significantly faster image reconstruction. Therefore, the proposed method may be useful for single-pixel imaging in the low resolution, high-frame rate regime, or video-rate acquisition. |
format |
article |
author |
Ming-Jie Sun Ling-Tong Meng Matthew P. Edgar Miles J. Padgett Neal Radwell |
author_facet |
Ming-Jie Sun Ling-Tong Meng Matthew P. Edgar Miles J. Padgett Neal Radwell |
author_sort |
Ming-Jie Sun |
title |
A Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging |
title_short |
A Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging |
title_full |
A Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging |
title_fullStr |
A Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging |
title_full_unstemmed |
A Russian Dolls ordering of the Hadamard basis for compressive single-pixel imaging |
title_sort |
russian dolls ordering of the hadamard basis for compressive single-pixel imaging |
publisher |
Nature Portfolio |
publishDate |
2017 |
url |
https://doaj.org/article/b9c7b5e28dff47e0b21493b3f491c3fd |
work_keys_str_mv |
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