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Practical Capture and Reproduction of Phosphorescent Appearance

Nalbach, O; Seidel, H-P; Ritschel, T; (2017) Practical Capture and Reproduction of Phosphorescent Appearance. Computer Graphics Forum , 36 (2) pp. 409-420. 10.1111/cgf.13136. Green open access

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Abstract

This paper proposes a pipeline to accurately acquire, efficiently reproduce and intuitively manipulate phosphorescent appearance. In contrast to common appearance models, a model of phosphorescence needs to account for temporal change (decay) and previous illumination (saturation). For reproduction, we propose a rate equation that can be efficiently solved in combination with other illumination in a mixed integro-differential equation system. We describe an acquisition system to measure spectral coefficients of this rate equation for actual materials. Our model is evaluated by comparison to photographs of actual phosphorescent objects. Finally, we propose an artist-friendly interface to control the behavior of phosphorescent materials by specifying spatiotemporal appearance constraints.

Type: Article
Title: Practical Capture and Reproduction of Phosphorescent Appearance
Open access status: An open access version is available from UCL Discovery
DOI: 10.1111/cgf.13136
Publisher version: http://dx.doi.org/10.1111/cgf.13136
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism—Color, shading, shadowing, and texture
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: http://discovery.ucl.ac.uk/id/eprint/1542080
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