Sabry El-Hakim, Lorenzo Gonzo, Michel Picard, Stefano Girardi, Andrea Simoni
Название
Visualization of Frescoed Surfaces: Buonconsinglio Castle - Aquila Tower, "Circle of the Months"
Год издания
1997
Язык
английский
Аннотация
One of the major masterpieces of international Gothic art (1350-1450) is located in the Aquila tower in Buonconsiglio castle, Trento,
Italy. The main room in the tower is completely frescoed with the Cycle of the Months, a rare example of medieval painting on a
nonreligious subject. The frescos depict medieval time month by month with stunning details of the landscape, costumes, and every
element of daily life. As part of the PEACH (Personal Experience with Active Cultural Heritage) project, the objective of this work
is to acquire the most suitable data and generate a textured 3D model for interactive manipulation and creation of a photo-realistic
walkthrough movie. This will give a vista to scientists, conservationists, historians, and visitors for looking at and studying this room
and its frescos in virtual reality. Since photo-realism of the frescos is of utmost importance, it became apparent that many issues
related to geometric and radiometric distortions must be addressed. For example, texture data is typically collected as images
containing specific lighting conditions. When these images are stitched together, discontinuities are usually visible. Another
predicament is the real-time requirement of visualisation and manipulation of 3D models. Since it is important to maintain the best
texture quality to visualize the details of the frescos and at the same time have smooth interactive visualization, memory problems
had to be addressed. We build upon existing techniques developed for texture acquisition and reconstruction to generate efficient
maps of high visual quality. Results of the first phase of the project are presented.
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