Chris Dainty

Poster Session.-High resolution flood illumination retinal imaging system with adaptive optics

Marwan Suheimat, Chris Dainty

Locally adaptive super-resolution through spatially variant interpolation

Colm Lynch, Nicholas Devaney, Chris Dainty

Systems that do not meet the requirements of the sampling theorem produce images corrupted by aliasing. Higher resolution images are attainable by unfolding aliased spatial frequencies. Multiple-image super-resolution has seen much attention in the literature though with no clear optimum algorithm for …

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Adaptive Optics in Vision Science: A Look Back... and Forwards

Chris Dainty

A Review of Resolution Losses for AR/VR Foveated Imaging Applications

Timothée E. Cognard, Alexander V. Goncharov, Nicholas Devaney, Chris Dainty et autres

Foveated imaging is of great interest for Augmented and Virtual Reality applications. The resolution losses off-axis simulated in foveated imaging are modelled using cone density on the retina. This article reviews the other factors limiting the resolution off-axis in AR/VR, in particular …

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Estimating axial resolution with diffraction theory

Timothée E. Cognard, Chris Dainty, Nicholas Devaney

Depth estimation is a classic machine vision and image processing problem aiming at mapping the distances of objects from the camera. The accuracy of this depth map depends on the axial resolution achieved by the system, which is usually estimated using geometrical …

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Glass: A New Media for a New Era?

Patrick Anderson, Richard Black, Aušra Čerkauskaitė, Andromachi Chatzieleftheriou et autres

In the foreseeable future, major cloud vendors will need to store multiple zettabytes of data in their cloud storage infrastructure. Like all storage, cloud storage systems need to trade performance for cost, and they currently achieve this by using storage tiers backed …

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9. Instrumentation for adaptive optics

Chris Dainty

The explosive development of computing power over the last 50 years has already transformed ophthalmic instrumentation, and we speculate that its impact is destined to accelerate. A telling example comes from Smirnov’s landmark paper on the aberrations of the human eye in …

Multi-frame super-resolution for low resolution, aliased, thermal imagery

Colm Lynch, Nicholas Devaney, Chris Dainty

Consumer thermal imagers are yet to see a reduction in pixel size to yield Nyquistsampled imaging. We introduce a super-resolution method to extend spatial frequency content appreciably with as few as 6 images. © OSA 2016.

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Fifty Years of Image Science

Chris Dainty

In this talk I shall review a number of topics in imaging that have interested me over the years, including: the fundamental limits of imaging systems, imaging through turbulence, adaptive optics and mobile imaging cameras.

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Seeing optics in a new light: Johannes Kepler and the transition to modern optical theories

Chris Dainty

We wish to thank all of the reviewers who have generously and thoughtfully assisted the Editorial Board, our authors, and our readers during the past year. Their efforts have helped us get timely decisions to authors.

Gary W. Abrams, David H. Abramson, Nisha R. Acharya, James Acheson et autres

Measurement of the retinal arteriolar response to a hyperoxic provocation in nonsmokers and smokers, using a high-resolution confocal scanning laser ophthalmoscope

Margaret O’ Halloran, E O'Donoghue, Chris Dainty

We used a high-resolution confocal scanning laser ophthalmoscope to measure the magnitude of change in retinal arteriolar diameters in response to oxygen breathing in young, healthy nonsmokers and smokers. Image sequences were obtained before and during oxygen breathing. Image sequences were desinusoided, …

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