Agile Spectrum Imaging: Programmable Wavelength Modulation for Cameras and Projectors

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Date
2008
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association and Blackwell Publishing Ltd
Abstract
We advocate the use of quickly-adjustable, computer-controlled color spectra in photography, lighting and displays. We present an optical relay system that allows mechanical or electronic color spectrum control and use it to modify a conventional camera and projector. We use a diffraction grating to disperse the rays into different colors, and introduce a mask (or LCD/DMD) in the optical path to modulate the spectrum. We analyze the trade-offs and limitations of this design, and demonstrate its use in a camera, projector and light source. We propose applications such as adaptive color primaries, metamer detection, scene contrast enhancement, photographing fluorescent objects, and high dynamic range photography using spectrum modulation.
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@article{
10.1111:j.1467-8659.2008.01169.x
, journal = {Computer Graphics Forum}, title = {{
Agile Spectrum Imaging: Programmable Wavelength Modulation for Cameras and Projectors
}}, author = {
Mohan, Ankit
and
Raskar, Ramesh
and
Tumblin, Jack
}, year = {
2008
}, publisher = {
The Eurographics Association and Blackwell Publishing Ltd
}, ISSN = {
1467-8659
}, DOI = {
10.1111/j.1467-8659.2008.01169.x
} }
Citation