Zobrazeno 1 - 10
of 493
pro vyhledávání: '"Wilkinson, Timothy D"'
Autor:
Soliman, Amr, Williams, C, Hopper, Richard, Udrea, Florin, Butt, Haider, Wilkinson, Timothy D.
Mid-infrared (MIR) spectroscopy is a powerful technique employed for a variety of applications, including gas sensing, industrial inspection, astronomy, surveillance, and imaging. Thin-film narrowband interference filters, targeted to specific absorp
Externí odkaz:
http://arxiv.org/abs/2409.05071
Publikováno v:
Appl. Opt. 64, A12-A18 (2025)
Computer-generated holography (CGH) is a promising technology for augmented reality displays, such as head-mounted or head-up displays. However, its high computational demand makes it impractical for implementation. Recent efforts to integrate neural
Externí odkaz:
http://arxiv.org/abs/2409.06711
Publikováno v:
Optics Letters Vol. 48, Issue 11, pp. 2945-2948 (2023)
Recent experimental work has demonstrated the potential to combine the merits of diffractive and on-chip photonic information processing devices in a single chip by making use of planar (or slab) waveguides. Researchers have adapted key results of 3D
Externí odkaz:
http://arxiv.org/abs/2303.08543
The demands of proliferating big data and massive deep learning models, against a backdrop of a mounting climate emergency and the abating of Moore's law, push technologists to develop high-speed, high-throughput, low energy and miniaturisable comput
Externí odkaz:
http://arxiv.org/abs/2303.08542
Publikováno v:
Digital Holography and 3-D Imaging 2022 Technical Digest Series (Optica Publishing Group, 2022), paper W3A.3
We implement a novel limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) optimisation algorithm with cross entropy (CE) loss function, to produce phase-only computer-generated hologram (CGH) for holographic displays, with validation on a binary-
Externí odkaz:
http://arxiv.org/abs/2205.05144
Publikováno v:
Journal of Imaging Science and Technology, 2023, pp 030405-1 - 030405-7
In a computer-generated holographic projection system, the image is reconstructed via the diffraction of light from a spatial light modulator. In this process, several factors could contribute to non-linearities between the reconstruction and the tar
Externí odkaz:
http://arxiv.org/abs/2204.06913
Holographic search algorithms such as direct search and simulated annealing allow high-quality holograms to be generated at the expense of long execution times. This is due to single iteration computational costs of $O(N_x N_y)$ and number of require
Externí odkaz:
http://arxiv.org/abs/2008.10894
Autor:
Christopher, Peter J., Lake, Jamie D., Dong, Daoming, Joyce, Hannah J., Wilkinson, Timothy D.
Traditional search algorithms for computer hologram generation such as Direct Search and Simulated Annealing offer some of the best hologram qualities at convergence when compared to rival approaches. Their slow generation times and high processing p
Externí odkaz:
http://arxiv.org/abs/2008.12213
The rise of mixed reality systems such as Microsoft HoloLens has prompted an increase in interest in the fields of 2D and 3D holography. Already applied in fields including telecommunications, imaging, projection, lithography, beam shaping and optica
Externí odkaz:
http://arxiv.org/abs/2008.12214
We present a novel algorithm for generating high quality holograms for Computer Generated Holography - Holographic Predictive Search. This approach is presented as an alternative to traditional Holographic Search Algorithms such as Direct Search (DS)
Externí odkaz:
http://arxiv.org/abs/2008.11518