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Can I read Dual photography on EtoBox?
Dual photography by Pradeep Sen; Billy Chen; Gaurav Garg; Stephen R. Marschner; Mark Horowitz; Marc Levoy; Hendrik P. A. Lensch is a Computer Science article available to read on EtoBox.
What is Dual photography about?
We present a novel photographic technique called dual photography, which exploits Helmholtz reciprocity to interchange the lights and cameras in a scene. With a video projector providing structured illumination, reciprocity permits us to generate pictures from the viewpoint of the projector, even though no camera was present at that location. The technique is completely image-based, requiring no knowledge of scene geometry or surface properties, and by its nature automatically includes all transport paths, including shadows, inter-reflections and caustics. In its simplest form, the technique can be used to take photographs without a camera; we demonstrate this by capturing a photograph using a projector and a photo-resistor. If the photo-resistor is replaced by a camera, we can produce a 4D dataset that allows for relighting with 2D incident illumination. Using an array of cameras we can produce a 6D slice of the 8D reflectance field that allows for relighting with arbitrary light fields. Since an array of cameras can operate in parallel without interference, whereas an array of light sources cannot, dual photography is fundamentally a more efficient way to capture such a 6D datase
Who reads Dual photography?
It is typically read by researchers, students, and practitioners in Computer Science.
- Author
- Pradeep Sen; Billy Chen; Gaurav Garg; Stephen R. Marschner; Mark Horowitz; Marc Levoy; Hendrik P. A. Lensch
- Publisher
- ACM
- Published
- 2005
- Language
- EN
- Field
- Computer Science (Physical Sciences)