All Outputs (18)

A wide spectral range sky radiance model (2022)
Journal Article

Pre-computed models of sky radiance are a tool to rapidly determine incident solar irradiance in applications as diverse as movie VFX, lighting simulation for architecture, experimental biology, and flight simulators. Several such models exist, but m... Read More about A wide spectral range sky radiance model.

Deep synthesis of cloud lighting (2022)
Journal Article

Current appearance models for the sky are able to represent clear sky illumination to a high degree of accuracy. However, these models all lack a common feature of real-skies: clouds. These are an essential component for many applications which rely... Read More about Deep synthesis of cloud lighting.

Ensemble metropolis light transport (2021)
Journal Article

This article proposes a Markov Chain Monte Carlo (MCMC) rendering algorithm based on a family of guided transition kernels. The kernels exploit properties of ensembles of light transport paths, which are distributed according to the lighting in the s... Read More about Ensemble metropolis light transport.

Deception in network defences using unpredictability (2021)
Journal Article

In this article, we propose a novel method that aims to improve upon existing moving-target defences by making them unpredictably reactive using probabilistic decision-making. We postulate that unpredictability can improve network defences in two key... Read More about Deception in network defences using unpredictability.

A fitted radiance and attenuation model for realistic atmospheres (2021)
Journal Article

We present a fitted model of sky dome radiance and attenuation for realistic terrestrial atmospheres. Using scatterer distribution data from atmospheric measurement data, our model considerably improves on the visual realism of existing analytical cl... Read More about A fitted radiance and attenuation model for realistic atmospheres.

Deep HDR hallucination for inverse tone mapping (2021)
Journal Article

Inverse Tone Mapping (ITM) methods attempt to reconstruct High Dynamic Range (HDR) information from Low Dynamic Range (LDR) image content. The dynamic range of well-exposed areas must be expanded and any missing information due to over/under-exposure... Read More about Deep HDR hallucination for inverse tone mapping.

Assessing a decision support tool for SOC analysts (2020)
Journal Article

It is difficult to discern real-world consequences of attacks on an enterprise when investigating network-centric data alone. In recent years, many tools have been developed to help understand attacks using visualization, but few aim to predict real-... Read More about Assessing a decision support tool for SOC analysts.

Per-pixel classification of clouds from whole sky HDR images (2020)
Journal Article

© 2020 Elsevier B.V. Accurately identifying cloud types in images has multiple uses from meteorological science to computer graphics, especially as clouds are a major factor influencing atmospheric radiative transport. Understanding which cloud types... Read More about Per-pixel classification of clouds from whole sky HDR images.

Anomaly detection using pattern-of-life visual metaphors (2019)
Journal Article

Complex dependencies exist across the technology estate, users and purposes of machines. This can make it difficult to efficiently detect attacks. Visualization to date is mainly used to communicate patterns of raw logs, or to visualize the output of... Read More about Anomaly detection using pattern-of-life visual metaphors.

Learning preferential perceptual exposure for HDR displays (2019)
Journal Article

High Dynamic Range (HDR) displays are capable of displaying a wider dynamic range of values than conventional displays. As HDR content becomes more ubiquitous, the use of these displays is likely to accelerate. As HDR displays can present a wider ran... Read More about Learning preferential perceptual exposure for HDR displays.

Audio-visual-olfactory resource allocation for tri-modal virtual environments (2019)
Journal Article

© 2019 IEEE. Virtual Environments (VEs) provide the opportunity to simulate a wide range of applications, from training to entertainment, in a safe and controlled manner. For applications which require realistic representations of real world environm... Read More about Audio-visual-olfactory resource allocation for tri-modal virtual environments.

Uniform Color Space-Based High Dynamic Range Video Compression (2018)
Journal Article

© 1991-2012 IEEE. Recently, there has been a significant progress in the research and development of the high dynamic range (HDR) video technology and the state-of-the-art video pipelines are able to offer a higher bit depth support to capture, store... Read More about Uniform Color Space-Based High Dynamic Range Video Compression.

ExpandNet: A deep convolutional neural network for high dynamic range expansion from low dynamic range content (2018)
Journal Article

© 2018 The Author(s) and 2018 The Eurographics Association and John Wiley & Sons Ltd. High dynamic range (HDR) imaging provides the capability of handling real world lighting as opposed to the traditional low dynamic range (LDR) which struggles to... Read More about ExpandNet: A deep convolutional neural network for high dynamic range expansion from low dynamic range content.

Audiovisual resource allocation for bimodal virtual environments (2018)
Journal Article

© 2017 The Authors and 2017 The Eurographics Association and John Wiley & Sons Ltd. Fidelity is of key importance if virtual environments are to be used as authentic representations of real environments. However, simulating the multitude of senses... Read More about Audiovisual resource allocation for bimodal virtual environments.

Subjective evaluation of high-fidelity virtual environments for driving simulations (2017)
Journal Article

© 2013 IEEE. Virtual environments (VEs) grant the ability to experience real-world scenarios, such as driving, in a virtual, safe, and reproducible context. However, in order to achieve their full potential, the fidelity of the VE must provide confid... Read More about Subjective evaluation of high-fidelity virtual environments for driving simulations.

Frame rate vs resolution: A subjective evaluation of spatiotemporal perceived quality under varying computational budgets (2017)
Journal Article

© 2017 The Authors and 2017 The Eurographics Association and John Wiley & Sons Ltd. Maximizing performance for rendered content requires making compromises on quality parameters depending on the computational resources available. Yet, it is current... Read More about Frame rate vs resolution: A subjective evaluation of spatiotemporal perceived quality under varying computational budgets.

Olfaction and selective rendering (2017)
Journal Article

© 2017 The Authors & 2017 The Eurographics Association and John Wiley & Sons Ltd. Published by John Wiley & Sons Ltd. Accurate simulation of all the senses in virtual environments is a computationally expensive task. Visual saliency models have... Read More about Olfaction and selective rendering.

Mixing tone mapping operators on the GPU by differential zone mapping based on psychophysical experiments (2016)
Journal Article

© 2016 In this paper, we present a new technique for displaying High Dynamic Range (HDR) images on Low Dynamic Range (LDR) displays in an efficient way on the GPU. The described process has three stages. First, the input image is segmented into lumin... Read More about Mixing tone mapping operators on the GPU by differential zone mapping based on psychophysical experiments.