Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Imaging and Applied Optics

Plenoptic imaging from intensity correlations

Francesco Vincenzo Pepe, Francesco Di Lena, Aldo Mazzilli, Eitan Edrei, Augusto Garuccio, Giuliano Scarcelli, Milena D’Angelo

Published Jan 1, 2018• 0 citations
Publisher

Abstract

We demonstrate, theoretically and experimentally, the possibility to perform plenoptic imaging by measuring intensity correlations of light. Unlike standard plenoptic procedures, the technique we propose does not sacrifice spatial resolution to achieve directional resolution.
DOI
10.1364/cosi.2018.cth2d.1

Related papers

Plenoptic imaging with second-order correlations of light

Francesco Vincenzo Pepe, Giuliano Scarcelli, Augusto Garuccio +1 more

Abstract Plenoptic imaging is a promising optical modality that simultaneously captures the location and the propagation direction of light in order to enable tridimensional imaging in a single shot. We demonstrate that it is possible to implement plenoptic imaging through second-order correlations of chaotic light, thus enabling to overcome the typical limitations of classical plenoptic devices.

arXiv:1704.04400•Quantum Measurements and Quantum Metrology•Jan 1, 2016•18 citations

Correlation Plenoptic Imaging With Entangled Photons

Francesco Vincenzo Pepe, Francesco Di Lena, Augusto Garuccio +2 more

Plenoptic imaging is a novel optical technique for three-dimensional imaging in a single shot. It is enabled by the simultaneous measurement of both the location and the propagation direction of light in a given scene. In the standard approach, the maximum spatial and angular resolutions are inversely proportional, and so are the resolution and the maximum achievable depth of focus of the 3D image. We have recently proposed a method to overcome such fundamental limits by combining plenoptic imaging with an intriguing correlation remote-imaging technique: ghost imaging. Here, we theoretically demonstrate that correlation plenoptic imaging can be effectively achieved by exploiting the position-momentum entanglement characterizing spontaneous parametric down-conversion (SPDC) photon pairs. As a proof-of-principle demonstration, we shall show that correlation plenoptic imaging with entangled photons may enable the refocusing of an out-of-focus image at the same depth of focus of a standard plenoptic device, but without sacrificing diffraction-limited image resolution.

arXiv:1606.02263•Technologies•Jun 7, 2016•58 citations

Plenoptic imaging through correlation

Francesco Di Lena, Francesco Vincenzo Pepe, Aldo Mazzilli +3 more

Traditional optical imaging is characterized by the typical trade-off between resolution and depth of field (DOF). In order to increase resolution, high numerical apertures (NA) are needed, but the associated large angular uncertainty results in a limited range of depths that can be put in sharp focus. Plenoptic imaging (PI) is a promising optical modality that simultaneously captures the location and the propagation direction of light in order to enable refocusing of the acquired images. Thanks to its ability to simultaneously acquire multi-perspective images, plenoptic imaging is one of the most promising technologies for 3D imaging. However, the improvement offered by standard plenoptic imaging is practical rather than fundamental: the increased DOF leads to a proportional reduction of the resolution well above the diffraction limit imposed by the lens NA. We have recently demonstrated that the intrinsic correlation of both chaotic light and entangled photons enables pushing plenoptic imaging to its fundamental limits of both resolution and DOF. In this paper we demonstrate correlation plenoptic imaging (CPI) of a double slit and present the comparison between theoretical prediction and experimental images.

Il Nuovo Cimento C•May 1, 2018•0 citations

Quantum-enhanced plenoptic imaging

Gianlorenzo Massaro, Francesco Di Lena, Davide Giannella +4 more

We will show that photon correlations can be employed to overcome the typical limitations of conventional plenoptic imaging devices, thus leading to quantum-enhanced plenoptic imaging. In particular, we will show an unprecedented combination of resolution and depth of field combined with refocusing capability and depth extension. We will show experimental results obtained in different application scenarios, ranging from microscopy to photography-like protocols. Significant advances in acquisition speed will also be discussed, as achieved by both hardware (e.g., use of SPAD arrays, as opposed to common CMOS and CCD cameras) and software (e.g., compressive sensing, quantum tomography) solutions.

Quantum Communications and Quantum Imaging•Oct 3, 2022•0 citations

Correlation plenoptic imaging with entangled photons

Milena D’Angelo, Augusto Garuccio, Francesco Vincenzo Pepe +4 more

Plenoptic imaging (PI) is an optical technique to perform three-dimensional imaging in a single shot. It is enabled by the simultaneous measurement of both the location and the propagation direction of light in a given scene. Despite being very useful for extending the depth of field, such technique entails a strong trade- off between spatial and angular resolution. This makes the resolution and the maximum achievable depth of focus inversely proportional; hence, resolution cannot be diffraction-limited. We have recently proposed a new procedure, called Correlation Plenoptic Imaging (CPI), to overcome such fundamental limits by collecting plenoptic information through intensity correlation measurement. Using two correlated beams, from either a chaotic or an entangled photon source, we perform imaging in one arm and simultaneously obtain the angular information in the other arm. In this paper, we discuss the case in which the two correlated beams of light are generated by spontaneous parametric down-conversion. We review the principles of CPI with entangled photons and discuss its resolution and depth-of-field limits.

SPIE Quantum Technologies•May 21, 2018•2 citations

Quantum Imaging for Space Objects

Francesco Vincenzo Pepe, Alessio Scagliola, Augusto Garuccio +1 more

We aim at developing novel imaging instruments that exploit the intrinsic spatio-temporal correlations of astronomical light sources to bring the quantum advantage in space imaging. These novel instruments differ from standard imaging systems in the way images are retrieved. Conventional images are obtained from direct measurement of the intensity of light coming from the object of interest and recorded by a sensor. Here, instead, we first register optical intensities on two disjoint sensors, and then measure correlations between them. After a brief overview on the state of the art of quantum imaging for space objects, we describe the working principle of Correlation Plenoptic Imaging, which enables to perform 3D imaging and refocusing of out-of-focus objects, and a possible application to satellite imaging.

IEEE International Geoscience and Remote Sensing Symposium (IGARSS)•Sep 26, 2020•1 citation
Plenoptic imaging is a novel optical technique for three-dimensional imaging in a single shot. It is enabled by the simultaneous measurement of both the location and the propagation direction of light in a given scene. In the standard approach, the maximum spatial and angular resolutions are inversely proportional, and so are the resolution and the maximum achievable depth of focus of the 3D image. We have recently proposed a method to overcome such fundamental limits by combining plenoptic imaging with an intriguing correlation remote-imaging technique: ghost imaging. Here, we theoretically demonstrate that correlation plenoptic imaging can be effectively achieved by exploiting the position-momentum entanglement characterizing spontaneous parametric down-conversion (SPDC) photon pairs. As a proof-of-principle demonstration, we shall show that correlation plenoptic imaging with entangled photons may enable the refocusing of an out-of-focus image at the same depth of focus of a standard plenoptic device, but without sacrificing diffraction-limited image resolution.
Traditional optical imaging is characterized by the typical trade-off between resolution and depth of field (DOF). In order to increase resolution, high numerical apertures (NA) are needed, but the associated large angular uncertainty results in a limited range of depths that can be put in sharp focus. Plenoptic imaging (PI) is a promising optical modality that simultaneously captures the location and the propagation direction of light in order to enable refocusing of the acquired images. Thanks to its ability to simultaneously acquire multi-perspective images, plenoptic imaging is one of the most promising technologies for 3D imaging. However, the improvement offered by standard plenoptic imaging is practical rather than fundamental: the increased DOF leads to a proportional reduction of the resolution well above the diffraction limit imposed by the lens NA. We have recently demonstrated that the intrinsic correlation of both chaotic light and entangled photons enables pushing plenoptic imaging to its fundamental limits of both resolution and DOF. In this paper we demonstrate correlation plenoptic imaging (CPI) of a double slit and present the comparison between theoretical prediction and experimental images.
We will show that photon correlations can be employed to overcome the typical limitations of conventional plenoptic imaging devices, thus leading to quantum-enhanced plenoptic imaging. In particular, we will show an unprecedented combination of resolution and depth of field combined with refocusing capability and depth extension. We will show experimental results obtained in different application scenarios, ranging from microscopy to photography-like protocols. Significant advances in acquisition speed will also be discussed, as achieved by both hardware (e.g., use of SPAD arrays, as opposed to common CMOS and CCD cameras) and software (e.g., compressive sensing, quantum tomography) solutions.
Plenoptic imaging (PI) is an optical technique to perform three-dimensional imaging in a single shot. It is enabled by the simultaneous measurement of both the location and the propagation direction of light in a given scene. Despite being very useful for extending the depth of field, such technique entails a strong trade- off between spatial and angular resolution. This makes the resolution and the maximum achievable depth of focus inversely proportional; hence, resolution cannot be diffraction-limited. We have recently proposed a new procedure, called Correlation Plenoptic Imaging (CPI), to overcome such fundamental limits by collecting plenoptic information through intensity correlation measurement. Using two correlated beams, from either a chaotic or an entangled photon source, we perform imaging in one arm and simultaneously obtain the angular information in the other arm. In this paper, we discuss the case in which the two correlated beams of light are generated by spontaneous parametric down-conversion. We review the principles of CPI with entangled photons and discuss its resolution and depth-of-field limits.
We aim at developing novel imaging instruments that exploit the intrinsic spatio-temporal correlations of astronomical light sources to bring the quantum advantage in space imaging. These novel instruments differ from standard imaging systems in the way images are retrieved. Conventional images are obtained from direct measurement of the intensity of light coming from the object of interest and recorded by a sensor. Here, instead, we first register optical intensities on two disjoint sensors, and then measure correlations between them. After a brief overview on the state of the art of quantum imaging for space objects, we describe the working principle of Correlation Plenoptic Imaging, which enables to perform 3D imaging and refocusing of out-of-focus objects, and a possible application to satellite imaging.