Single-pixel digital ghost holography

Clemente, Pere; Durán, Vicente; Tajahuerce, Enrique; Torres-Company, Víctor; Láncis, Jesús

doi:10.1103/physreva.86.041803

Cited by 114 publications

(51 citation statements)

References 31 publications

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“…It is interesting that the SNR curves all exhibit some slight oscillations, as also observed in Ref. [15]. To our knowledge, this is partly due to experimental errors and partly because the information in the CCD matrix frames is actually redundant for retrieving the object.…”

supporting

confidence: 72%

“…This notwithstanding, GI displays great potential because it allows imaging of the object in harsh environments, e.g., in a scattering medium [10] or turbulent atmosphere [11][12][13], where standard imaging methods fail. Computational GI may also be used in optical encryption [14], as well as in ghost holography, where both intensity and phase information may be retrieved [15]. The disadvantage is that very long measurement times are needed, while the visibility and signal-to-noise ratio (SNR) are low, especially with thermal light, which are serious drawbacks for practical applications.…”

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confidence: 99%

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Time-correspondence differential ghost imaging

Zhang

Luo

et al. 2013

Phys. Rev. A

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Experimental data with digital masks and a theoretical analysis are presented for an imaging scheme that we call time-correspondence differential ghost imaging (TCDGI). It is shown that by conditional averaging of the information from the reference detector but with the negative signals inverted, the quality of the reconstructed images is in general superior to all other ghost imaging (GI) methods to date. The advantages of both differential GI and time-correspondence GI are combined, plus less data manipulation and shorter computation time are required to obtain equivalent quality images under the same conditions. This TCDGI method offers a general approach applicable to all GI techniques, especially when objects with continuous gray tones are involved.Comment: Title changed, and some corresponding modifications made. 5 pages, 5 figure

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confidence: 72%

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confidence: 99%

Time-correspondence differential ghost imaging

Zhang

Luo

et al. 2013

Phys. Rev. A

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“…The programmed patterns are used as generalized measurement modes where the object information is expressed. The same principle enables retrieval of the spatial information of an object with the use of a single-pixel detector in ghost [16,17] and compressive imaging [18,19]. In the latter case, the development of data collection strategies based on compressive sampling allows image compression to be performed at the sensing stage [20].…”

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confidence: 99%

Image transmission through dynamic scattering media by single-pixel photodetection

et al. 2014

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Smart control of light propagation through highly scattering media is a much desired goal with major technological implications. Since interaction of light with highly scattering media results in partial or complete depletion of ballistic photons, it is in principle impossible to transmit images through distances longer than the extinction length. Nevertheless, different methods for image transmission, focusing, and imaging through scattering media by means of wavefront control have been published over the past few years. In this paper we show that single-pixel optical systems, based on compressive detection, can also overcome the fundamental limitation imposed by multiple scattering to successfully transmit information. But, in contrast with the recently introduced schemes that use the transmission matrix technique, our approach does not require any a-priori calibration process that ultimately makes the present method suitable to use with dynamic scattering media. This represents an advantage over previous methods that rely on optical feedback wavefront control, especially for short speckle decorrelation times.

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“…The key point is to formulate the measurement problem in terms of the complex amplitude transmittance rather than using the intensity, which is the variable of choice for conventional CS-based single-pixel imaging. The above proposition constitutes the generalization of our previously reported ghost holography technique [13]. Experimental results are validated by retrieving the phase map corresponding to a conventional ophthalmic lens.…”

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confidence: 82%

Compressive holography with a single-pixel detector

et al. 2013

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This Letter develops a framework for digital holography at optical wavelengths by merging phase-shifting interferometry with single-pixel optical imaging based on compressive sensing. The field diffracted by an input object is sampled by Hadamard patterns with a liquid crystal spatial light modulator. The concept of a single-pixel camera is then adapted to perform interferometric imaging of the sampled diffraction pattern by using a Mach-Zehnder interferometer. Phase-shifting techniques together with the application of a backward light propagation algorithm allow the complex amplitude of the object under scrutiny to be resolved. A proof-of-concept experiment evaluating the phase distribution of an ophthalmic lens with compressive phase-shifting holography is provided.

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Single-pixel digital ghost holography

Cited by 114 publications

References 31 publications

Time-correspondence differential ghost imaging

Time-correspondence differential ghost imaging

Image transmission through dynamic scattering media by single-pixel photodetection

Compressive holography with a single-pixel detector

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