The nature of noise in single-pixel cameras and their application in imaging through scattering media
Imaging through scattering media has been a longstanding issue in many scientific fields and several optical techniques have emerged to retrieve the information of objects hidden in highly scattering media. Single-pixel imaging (SPI) techniques have proved to be a potential approach for imaging thro...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2019 |
| País: | España |
| Institución: | CBUC, CESCA |
| Repositorio: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/667330 |
| Acceso en línea: | http://hdl.handle.net/10803/667330 http://dx.doi.org/10.6035/14104.2019.679915 |
| Access Level: | acceso abierto |
| Palabra clave: | Single-pixel cameras Light scattering Photodiodes Fourier spatial filtering Infrared imaging noise in SPCs Ciències naturals, químiques, físiques i matemàtiques 535 |
| Sumario: | Imaging through scattering media has been a longstanding issue in many scientific fields and several optical techniques have emerged to retrieve the information of objects hidden in highly scattering media. Single-pixel imaging (SPI) techniques have proved to be a potential approach for imaging through scattering media. In this context, the objective of this thesis has been to study the nature of noise in SPI and to address the challenge of recovering the image of an object hidden behind a scattering media using visible and NIR light. In particular, we have developed a numerical model of a single-pixel camera (SPC) taking into account the properties of both the incident light and the photodiode. Moreover, we have proposed a novel approach for imaging through scattering media that combines SPI techniques with Fourier spatial filtering. Finally, we have studied the properties of a SPC in reflection configuration for imaging through scattering media. |
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