Lighting-by-example with wavelets

Nam Ha Hai, Patrick Olivier

Research output: Contribution to journalConference articleResearchpeer-review

2 Citations (Scopus)

Abstract

Automatic lighting design aims to provide users with semi-automated approaches, and easy-to-use tools, to configure lighting for 3D scenes. We present LIGHTOPEX the first fully automatic example-based local illumination lighting design system. Utilizing a wavelet-based lighting design framework, by which image quality is modeled using a cognitively inspired objective function, this approach to lighting design both: (1) allows the declarative specification of lighting; and (2) facilitates intuitive and natural specification of scene lighting. LIGHTOPEX enables users to select the desired lighting for a scene using exemplar 2D images and uses the spatial distribution of the luminance in these images as the target values of an optimization step. We demonstrate the utility of LIGHTOPEX through a range of examples, and conduct a preliminary investigation of the performance of a number of different of optimization schemes.

Original languageEnglish
Pages (from-to)110-123
Number of pages14
JournalLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume4569 LNCS
Publication statusPublished - 1 Dec 2007
Event8th International Symposium on Smart Graphics, SG 2007 - Kyoto, Japan
Duration: 25 Jun 200727 Jun 2007

Cite this

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title = "Lighting-by-example with wavelets",
abstract = "Automatic lighting design aims to provide users with semi-automated approaches, and easy-to-use tools, to configure lighting for 3D scenes. We present LIGHTOPEX the first fully automatic example-based local illumination lighting design system. Utilizing a wavelet-based lighting design framework, by which image quality is modeled using a cognitively inspired objective function, this approach to lighting design both: (1) allows the declarative specification of lighting; and (2) facilitates intuitive and natural specification of scene lighting. LIGHTOPEX enables users to select the desired lighting for a scene using exemplar 2D images and uses the spatial distribution of the luminance in these images as the target values of an optimization step. We demonstrate the utility of LIGHTOPEX through a range of examples, and conduct a preliminary investigation of the performance of a number of different of optimization schemes.",
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Lighting-by-example with wavelets. / Hai, Nam Ha; Olivier, Patrick.

In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Vol. 4569 LNCS, 01.12.2007, p. 110-123.

Research output: Contribution to journalConference articleResearchpeer-review

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AB - Automatic lighting design aims to provide users with semi-automated approaches, and easy-to-use tools, to configure lighting for 3D scenes. We present LIGHTOPEX the first fully automatic example-based local illumination lighting design system. Utilizing a wavelet-based lighting design framework, by which image quality is modeled using a cognitively inspired objective function, this approach to lighting design both: (1) allows the declarative specification of lighting; and (2) facilitates intuitive and natural specification of scene lighting. LIGHTOPEX enables users to select the desired lighting for a scene using exemplar 2D images and uses the spatial distribution of the luminance in these images as the target values of an optimization step. We demonstrate the utility of LIGHTOPEX through a range of examples, and conduct a preliminary investigation of the performance of a number of different of optimization schemes.

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