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| DOI | 10.1016/J.OPTLASTEC.2025.113311 | ||
| Año | 2025 | ||
| Tipo |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Phase retrieval is a challenging inverse problem where amplitude and phase are estimated from diffracted intensities, with applications ranging from microscopy to astronomy. Current computational imaging techniques employ random complementary coded apertures to recover complex optical fields, but require at least 20 masks for effective reconstruction, limiting real-time applications. We propose a novel approach using eight binary Hadamard complementary coded apertures designed to minimize the condition number, thereby ensuring a well-conditioned inverse problem. Our method significantly reduces acquisition time while enhancing reconstruction quality. Using the Fresnel propagation regime and the hybrid input-output algorithm, we validate our approach through extensive simulations with 23 Kodak dataset images across various noise levels. Results demonstrate that our Hadamard approach outperforms conventional random coded methods in reducing the required number of masks. Furthermore, experimental results confirm our technique successfully recovers both simple phase objects like lenses and complex arbitrary phases displayed on spatial light modulators, achieving superior visual quality measured by naturalness image quality evaluation metrics compared to conventional patterns.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Romero, Bastián | - |
Pontificia Universidad Católica de Valparaíso - Chile
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| 2 | Scherz, Pablo | - |
Pontificia Universidad Católica de Valparaíso - Chile
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| 3 | Díaz, Nelson | - |
Pontificia Universidad Católica de Valparaíso - Chile
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| 4 | Tapia, Jorge | - |
Universidad Técnica Federico Santa María - Chile
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| 5 | Cofré, Aarón | - |
Pontificia Universidad Católica de Valparaíso - Chile
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| 6 | Peters, E. | - |
Universidad de Los Andes, Chile - Chile
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| 7 | Vera, Esteban | Hombre |
Pontificia Universidad Católica de Valparaíso - Chile
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| 8 | Pérez, Darío G. | - |
Pontificia Universidad Católica de Valparaíso - Chile
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| Fuente |
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| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Agencia Nacional de Investigación y Desarrollo |
| Agradecimiento |
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| This work was supported in part by Agencia Nacional de Investigaci\u00F3n y Desarrollo (ANID), Chile (ANILLO ATE220022; QUIMAL 220006; ALMA 31220004; EXPLORACION 13220234; FONDECYT 1211848; DOCTORADO NACIONAL 2024\u201321241559; FONDECYT Postdoctorado 3220561); FONDECYT Postdoctorado 3230489. |