Testing spatial modulations in a compressive single-pixel hyperspectral microscope with optical fiber light collection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F25%3A00648065" target="_blank" >RIV/61389021:_____/25:00648065 - isvavai.cz</a>

Alternative codes found

RIV/46747885:24220/25:00014070

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/2040-8986/ade4d6" target="_blank" >https://iopscience.iop.org/article/10.1088/2040-8986/ade4d6</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/2040-8986/ade4d6" target="_blank" >10.1088/2040-8986/ade4d6</a>

Result language

angličtina

Original language name

Testing spatial modulations in a compressive single-pixel hyperspectral microscope with optical fiber light collection

Original language description

A single-pixel camera offers an alternative method for image acquisition by using a series of modulation patterns on the scene. When combined with compressive sensing, it can significantly reduce the number of required measurements to reconstruct the image. Various modes of spatial modulations in compressive imaging can vastly affect the measurement quality and reduce the number of measurements needed. While previous studies have explored various modulation approaches, they often examined only a limited subset under inconsistent conditions. In this work, we provide a thorough comparison of the performance of 20 different modes of modulations and their modifications using a unified testing scheme. These were implemented via a digital micromirror device (DMD), and the DMD-modulated light was collected into an optical fiber. First, we evaluated the modulation patterns through simulations to study the impact of noise on image reconstruction. Next, we experimentally tested the entire set of patterns using the previously developed dual hyperspectral compressive microscope. We observed that the experimental results were highly affected by the diffraction on DMD, which highly depended on the character of a pattern. To ensure a thorough analysis, all modulation modes were tested on three different samples and at three distinct resolutions. Additionally, we identified individual challenges and limitations associated with specific modulation modes, offering practical insights for their testing and application. This study provides valuable guidance for optimizing modulation patterns in compressive imaging systems.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Optics

ISSN

2040-8978

e-ISSN

2040-8986

Volume of the periodical

27

Issue of the periodical within the volume

7

Country of publishing house

US - UNITED STATES

Number of pages

17

Pages from-to

075401

UT code for WoS article

001524487900001

EID of the result in the Scopus database

2-s2.0-105010165104