Search results for "Holografia"
showing 4 items of 4 documents
Roadmap on digital holography [Invited]
2021
This Roadmap article on digital holography provides an overview of a vast array of research activities in the field of digital holography. The paper consists of a series of 25 sections from the prominent experts in digital holography presenting various aspects of the field on sensing, 3D imaging and displays, virtual and augmented reality, microscopy, cell identification, tomography, label-free live cell imaging, and other applications. Each section represents the vision of its author to describe the significant progress, potential impact, important developments, and challenging issues in the field of digital holography.
Single-shot color digital holography based on the fractional Talbot effect
2011
We present a method for recording on-axis color digital holograms in a single shot. Our system performs parallel phase-shifting interferometry by using the fractional Talbot effect for every chromatic channel simultaneously. A two-dimensional binary amplitude grating is used to generate Talbot periodic phase distributions in the reference beam. The interference patterns corresponding to the three chromatic channels are captured at once at different axial distances. In this scheme, one-shot recording and digital reconstruction allow for real-time measurement. Computer simulations and experimental results confirm the validity of our method.
Holografia en línea mediante multiplexado en longitud de onda. Aplicación a la microscopia sin lentes
2020
Esta tesis se enmarca de lleno en la holografía digital, tanto en captura como en la reconstrucción de los hologramas, para realizar unos desarrollos novedosos tanto a nivel de hardware como de procesado de los hologramas capturados con idea de mejorar, o aportar, un pequeño paso más a la mejora de las técnicas de captura y procesado de la holografía digital. Además, aplicamos a la microscopia los conceptos teóricos tratados, y lo haremos sin el uso de lentes en el proceso de reconstrucción. Para ello, presentaremos un algoritmo de procesado iterativo de rápida convergencia dando como resultado imágenes de fase, sin pérdida de resolución, mejora del ruido coherente por promedio de distintos…