High Dynamic Range Imaging

The human eye has the capability of seeing a wide range of luminances in any single gaze. This is because the eye is continually re-focussing as it sweeps the scene. High dynamic range imaging or HDRI or HDI, is exactly the same principle, applied to photography, or synthetic environments. Many different render passes, or photographs with different exposure times are taken, and combined into a single image of crystal clarity, far more realistic than a camera is capable of taking in any single frame.

These images are often then used to generate digital luminosity maps, that are translated directly into synthetic environments to guide lighting levels.

Below, we offer a selection of links from our resource databases which may match this term.

HDI HDRI High Dynamic Range Imaging

Tone Mapping

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High Dynamic Range Photography, and Use in Eye Emulation
H.D.R., or high dynamic range photography is a relatively new technique used by photographers to take high-quality full lighting range photos that are near-indistinguishable from paintings, for their ability to correctly replicate the lighting of a given scene, exactly how the human eye would see it.

Resource List: Medical Imaging

AR based Medical imaging technologies really began to take off in the early 2000s. There are a growing range of holographic, projective, interactive gesture recognition tools available, which can really make training and diagnosis so much easier.

Ultrasensitive Imaging: Hunting Every Photon
As the demands for precise imaging in fields such as medicine, astronomy, and real-time machine vision in hostile environments continue to increase, so the demands placed on imaging equipment become ever more stringent. An imaging method based on Single Photon Avalanche Photodiodes (SPAD) offers the potential to ease this bottleneck greatly.

The Brain Unveiled
Technology Review's long, and in depth look at the rise of diffusion spectrum imaging, and how this new neural interface imaging technique is rapidly accelerating the study of both human and animal brains to an extent unparalleled by any previous imaging technique, even fMRI.

Brain Reading: Diffusion Spectrum Imaging
Diffusion spectrum imaging is a new technique at time of writing, which allows magnetic resonance brain imaging, at a much higher level of fidelity than fMRI permits.

Using VR and Phased Imaging to Track Alzheimers Disease Progression in New Ways
In mid 2012, Swiss researchers turned the world of alzheimers plaque imaging on its head: by combining a phased imaging source and an integral VR model generator, for the first time ever we can now track the formation of Alzheimers plaques in real-time in living patients.

AI Cars, Driving Like Hooligans
Stanford's Junior AI, on handbrake skid parking, without a human influence on the system, in dynamic environments, with only a two foot variance in position at 25mph. Or, the first baby steps towards dynamic switching between open and closed loop systems.

Introductory Techniques for 3-D Computer Vision

An applied introduction to modern computer vision, focusing on a set of computational techniques for 3-D imaging. Covers a wide range of fundamental problems encountered within computer vision and provides detailed algorithmic and theoretical solutions for each. Each chapter concentrates on a specific problem and solves it by building on previous results.

Brain Reading: fMRI
fMRI or functional magnetic resonance imaging, is one of the newest brain imaging technologies for the first decade of the 21st century. It is a basic form of Brain-Computer Interaction.

Conference Proceedings: Medical Imaging and Augmented Reality (MIAR 2008)

These are the proceedings of the fourth international medical imaging and augmented reality conference, held in Tokyo, Japan, August 1-2, 2008.

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