Refocusing Algorithm for Correlation Plenoptic Imaging
Correlation plenoptic imaging (CPI) is a technique capable of acquiring the <i>light field</i> emerging from a scene of interest, namely, the combined information of intensity and propagation direction of light. This is achieved by evaluating correlations between the photon numbers measu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-09-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/17/6665 |
| _version_ | 1797493036676022272 |
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| author | Gianlorenzo Massaro Francesco V. Pepe Milena D’Angelo |
| author_facet | Gianlorenzo Massaro Francesco V. Pepe Milena D’Angelo |
| author_sort | Gianlorenzo Massaro |
| collection | DOAJ |
| description | Correlation plenoptic imaging (CPI) is a technique capable of acquiring the <i>light field</i> emerging from a scene of interest, namely, the combined information of intensity and propagation direction of light. This is achieved by evaluating correlations between the photon numbers measured by two high-resolution detectors. Volumetric information about the object of interest is decoded, through data analysis, from the measured four-dimensional correlation function. In this paper, we investigate the relevant aspects of the refocusing algorithm, a post-processing method that isolates the image of a selected transverse plane within the 3D scene, once applied to the correlation function. In particular, we aim at bridging the gap between existing literature, which only deals with refocusing algorithms in case of continuous coordinates, and the experimental reality, in which the correlation function is available as a discrete quantity defined on the sensors pixels. |
| first_indexed | 2024-03-10T01:14:14Z |
| format | Article |
| id | doaj.art-77d89370bc674d3db1a0159beb890f93 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T01:14:14Z |
| publishDate | 2022-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-77d89370bc674d3db1a0159beb890f932023-11-23T14:12:24ZengMDPI AGSensors1424-82202022-09-012217666510.3390/s22176665Refocusing Algorithm for Correlation Plenoptic ImagingGianlorenzo Massaro0Francesco V. Pepe1Milena D’Angelo2Dipartimento Interateneo di Fisica, Università degli Studi di Bari, 70125 Bari, ItalyDipartimento Interateneo di Fisica, Università degli Studi di Bari, 70125 Bari, ItalyDipartimento Interateneo di Fisica, Università degli Studi di Bari, 70125 Bari, ItalyCorrelation plenoptic imaging (CPI) is a technique capable of acquiring the <i>light field</i> emerging from a scene of interest, namely, the combined information of intensity and propagation direction of light. This is achieved by evaluating correlations between the photon numbers measured by two high-resolution detectors. Volumetric information about the object of interest is decoded, through data analysis, from the measured four-dimensional correlation function. In this paper, we investigate the relevant aspects of the refocusing algorithm, a post-processing method that isolates the image of a selected transverse plane within the 3D scene, once applied to the correlation function. In particular, we aim at bridging the gap between existing literature, which only deals with refocusing algorithms in case of continuous coordinates, and the experimental reality, in which the correlation function is available as a discrete quantity defined on the sensors pixels.https://www.mdpi.com/1424-8220/22/17/6665light-field imagingquantum imagingcorrelation imaging3D imaging |
| spellingShingle | Gianlorenzo Massaro Francesco V. Pepe Milena D’Angelo Refocusing Algorithm for Correlation Plenoptic Imaging Sensors light-field imaging quantum imaging correlation imaging 3D imaging |
| title | Refocusing Algorithm for Correlation Plenoptic Imaging |
| title_full | Refocusing Algorithm for Correlation Plenoptic Imaging |
| title_fullStr | Refocusing Algorithm for Correlation Plenoptic Imaging |
| title_full_unstemmed | Refocusing Algorithm for Correlation Plenoptic Imaging |
| title_short | Refocusing Algorithm for Correlation Plenoptic Imaging |
| title_sort | refocusing algorithm for correlation plenoptic imaging |
| topic | light-field imaging quantum imaging correlation imaging 3D imaging |
| url | https://www.mdpi.com/1424-8220/22/17/6665 |
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