Computational Light Painting Using a Virtual Exposure

Computer Graphics Forum (Proceedings of Eurographics), Volume 36, Number 2 - 2017
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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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BibTex references

@Article { SLE17,
  author       = "Salamon, Nestor Z. and Lancelle, Marcel and Eisemann, Elmar",
  title        = "Computational Light Painting Using a Virtual Exposure",
  journal      = "Computer Graphics Forum (Proceedings of Eurographics)",
  number       = "2",
  volume       = "36",
  year         = "2017",
  key          = "10.1111/cgf.13101",
  url          = ""

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