Panagiotis D. Ritsos

MEng PhD Essex, FHEA

Lecturer in Visualization

Visualization, Data, Modelling and
Graphics (VDMG) research group,

School of Computer Science
and Electronic Engineering,

Bangor University,
Dean Street, Bangor,
Gwynedd, UK, LL57 1UT

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Papers at EG CGVC 2019

We presented one full paper and one short paprt in the Eurographics Conference on Computer Graphics and Visual Computing 2019 (CGVC 2019), to be held in Bangor, UK, on the 12th - 13th of September, 2019. The full paper received the Rob Fletcher Prize for Best Student Application Paper.

B. R. Williams, P. D. Ritsos, and C. Headleand, “Evaluating Models for Virtual Forestry Generation and Tree Placement in Games,” in Proceedings of the Eurographics Conference in Computer Graphics and Visual Computing (CGVC) 2019, Bangor, UK, 2019. A handful of approaches have been previously proposed to generate procedurally virtual forestry for virtual worlds and computer games, including plant growth models and point distribution methods. However, there has been no evaluation to date which assesses how effective these algorithms are at modelling real-world phenomena. In this paper we tackle this issue by evaluating three algorithms used in the generation of virtual forests – a randomly uniform point distribution method (control), a plant competition model, and an iterative random point distribution technique. Our results show that a plant competition model generated more believable content when viewed from an aerial perspective. We also found that a randomly uniform point distribution method produced forest visualisations which were rated highest in playability and photorealism, when viewed from a first-person perspective. Our results indicate that when it comes to believability, the relationship between viewing perspective and procedural generation algorithm is more important than previously thought.
[Abstract]   [PDF]   [BibTex]   [URL]   [Best Student Paper]

J. R. Jackson, P. D. Ritsos, and J. C. Roberts, “Towards a tool for the creation of micro-visualisations,” in Proceedings of the Eurographics Conference in Computer Graphics and Visual Computing (CGVC) 2019, Bangor, UK, 2019. As the every day use of mobile and small screen devices becomes more common, it is necessary to explore how we can visualise data effectively in small design spaces. These screens are often used in situations where it is necessary to convey information in a concise, readable, reliable and visually appealing way. Our work focuses on the design and development of a tool to facilitate the creation and manipulation of new micro-visualisations. The results show that the tool is suitable for creating large number of outputs quickly and efficiently.
[Abstract]   [PDF]   [BibTex]   [URL]