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Journal of Electronic Imaging

Chroma key without color restrictions based on asynchronous amplitude modulation of background illumination on retroreflective screens
Author(s): Borja Vidal; Juan A. Lafuente
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Paper Abstract

A simple technique to avoid color limitations in image capture systems based on chroma key video composition using retroreflective screens and light-emitting diodes (LED) rings is proposed and demonstrated. The combination of an asynchronous temporal modulation onto the background illumination and simple image processing removes the usual restrictions on foreground colors in the scene. The technique removes technical constraints in stage composition, allowing its design to be purely based on artistic grounds. Since it only requires adding a very simple electronic circuit to widely used chroma keying hardware based on retroreflective screens, the technique is easily applicable to TV and filming studios.

Paper Details

Date Published: 28 March 2016
PDF: 5 pages
J. Electron. Imag. 25(2) 023009 doi: 10.1117/1.JEI.25.2.023009
Published in: Journal of Electronic Imaging Volume 25, Issue 2
Show Author Affiliations
Borja Vidal, Univ. Politècnica de València (Spain)
Juan A. Lafuente, Univ. Politècnica de València (Spain)

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