Recovering high dynamic range radiance maps from photographs
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
LogLuv encoding for full-gamut, high-dynamic range images
Journal of Graphics Tools
Realistic visualisation of the Pompeii frescoes
AFRIGRAPH '01 Proceedings of the 1st international conference on Computer graphics, virtual reality and visualisation
Very realistic graphics for visualising archaeological site reconstructions
SCCG '02 Proceedings of the 18th spring conference on Computer graphics
Comparing Real & Synthetic Scenes using Human Judgements of Lightness
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
High fidelity reconstruction of the ancient Egyptian temple of Kalabsha
AFRIGRAPH '04 Proceedings of the 3rd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa
A local model of eye adaptation for high dynamic range images
AFRIGRAPH '04 Proceedings of the 3rd international conference on Computer graphics, virtual reality, visualisation and interaction in Africa
Enhanced illumination of reconstructed dynamic environments using a real-time flame model
AFRIGRAPH '06 Proceedings of the 4th international conference on Computer graphics, virtual reality, visualisation and interaction in Africa
High Dynamic Range Imaging: Acquisition, Display, and Image-Based Lighting (The Morgan Kaufmann Series in Computer Graphics)
High dynamic range display of authentically illuminated Byzantine art from cyprus
VAST'07 Proceedings of the 8th International conference on Virtual Reality, Archaeology and Intelligent Cultural Heritage
Accurate modelling of Roman lamps in conimbriga using high dynamic range
VAST'08 Proceedings of the 9th International conference on Virtual Reality, Archaeology and Cultural Heritage
High fidelity lighting of Knossos
VAST'03 Proceedings of the 4th International conference on Virtual Reality, Archaeology and Intelligent Cultural Heritage
Communication of digital cultural heritage in public spaces by the example of Roman cologne
EuroMed'10 Proceedings of the Third international conference on Digital heritage
Cultural Heritage Predictive Rendering
Computer Graphics Forum
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In the last few years, the number of projects involving historical reconstruction has increased significantly. Recent technologies have proven a powerful tool for a better understanding of our cultural heritage through which to attain a glimpse of the environments in which our ancestors lived. However, to accomplish such a purpose, these reconstructions should be presented to us as they may really have been perceived by a local inhabitant, according to the illumination and materials used back then and, equally important, the characteristics of the human visual system. The human visual system has a remarkable ability to adjust itself to almost all everyday scenarios. This is particularly evident in extreme lighting conditions, such as bright light or dark environments. However, a major portion of the visible spectra captured by our visual system cannot be represented in most display devices. High dynamic range imagery is a field of research which is developing techniques to correct such inaccuracies. This new viewing paradigm is perfectly suited for archaeological interpretation, since its high contrast and chromaticity can present us with an enhanced viewing experience, closer to what an inhabitant of that era may have seen. In this article we present a case study of the reconstruction of a Roman site. We generate high dynamic range images of mosaics and frescoes from one of the most impressive monuments in the ruins of Conimbriga, Portugal, an ancient city of the Roman Empire. To achieve the requisite level of precision, in addition to having a precise geometric 3D model, it is crucial to integrate in the virtual simulation authentic physical data of the light used in the period under consideration. Therefore, in order to create a realistic physical-based environment, we use in our lighting simulations real data obtained from simulated Roman luminaries of that time.