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Perception-based illumination information measurement and light source placement

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Vázquez Alcocer, Pere PauMés informacióMés informacióMés informació
Sbert Cassasayas, Mateu
Document typeConference report
Defense date2003
Rights accessRestricted access - publisher's policy
All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder
Abstract
The automatic selection of good viewing parameters is very complex. In most cases, the notion of good strongly depends on the concrete application. Moreover, when an intuitive definition of good view is available, it is often difficult to establish a measure that brings it to the practice. Commonly, two kind of viewing parameters must be set: the position and orientation of the camera, and the ones relative to light sources. The first ones will determine how much of the geometry can be captured and the latter will influence on how much of it is revealed (i. e. illuminated) to the user. In this paper we will define a metric to calculate the amount of information relative to an object that is communicated to the user given a fixed camera position. This measure is based on an information-based concept, the Shannon entropy, and will be applied to the problem of automatic selection of light positions in order to adequately illuminate an object.
CitationVázquez, P.; Sbert, M. Perception-based illumination information measurement and light source placement. A: International Conference on Computational Science and its Applications. "International Conference on Computational Science and its Applications 2003". Montreal: 2003, p. 306-316. 
URIhttp://hdl.handle.net/2117/10196
ISBN978-3-540-40156-8
Publisher versionhttp://www.springerlink.com/content/p95ytwna18w11le3
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  • Departament de Ciències de la Computació - Ponències/Comunicacions de congressos [1.191]
  • MOVING - Grup de Recerca en Modelatge, Interacció i Visualització en Realitat Virtual - Ponències/Comunicacions de congressos [86]
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