Computer Graphics Forum

Computational Light Painting Using a Virtual Exposure

Nestor Z. Salamon, Marcel Lancelle, and Elmar Eisemann

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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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@article{bib:salamon:2017,
    author       = { Salamon, Nestor Z. and Lancelle, Marcel and Eisemann, Elmar },    
    title        = { Computational Light Painting Using a Virtual Exposure },
    journal      = { Computer Graphics Forum },
    volume       = { 36 },
    year         = { 2017 },
    pages        = { 1--8 },
    doi          = { 10.1111/cgf.13101 },
    dblp         = { journals/cgf/SalamonLE17 },
    url          = { https://publications.graphics.tudelft.nl/papers/229 },
}