Computational Light Painting Using a Virtual Exposure

Light painting is an artform where a light source is moved during a long‐exposure shot, creating trails resembling a stroke on a canvas. It is very difficult to perform because the light source needs to be moved at the intended speed and along a precise trajectory. Additionally, images can be corrup...

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Bibliographic Details
Published inComputer graphics forum Vol. 36; no. 2; pp. 1 - 8
Main Authors Salamon, Nestor Z., Lancelle, Marcel, Eisemann, Elmar
Format Journal Article
LanguageEnglish
Published Oxford Blackwell Publishing Ltd 01.05.2017
Subjects
Animation
Art & technology
Categories and Subject Descriptors (according to ACM CCS)
Computation
Exposure
I.3.4 [Computer Graphics]: Graphics Utilities—Paint systems
Light
Photography
Production planning
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Summary:Light painting is an artform where a light source is moved during a long‐exposure shot, creating trails resembling a stroke on a canvas. It is very difficult to perform because the light source needs to be moved at the intended speed and along a precise trajectory. Additionally, images can be corrupted by the person moving the light. We propose computational light painting, which avoids such artifacts and is easy to use. Taking a video of the moving light as input, a virtual exposure allows us to draw the intended light positions in a post‐process. We support animation, as well as 3D light sculpting, with high‐quality results.
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SourceType-Scholarly Journals-1
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ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.13101