A Delaunay Keyer for Colorspace-Local Matte Extraction and Spill Suppression
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Date
2026
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
Keying is a fundamental, common, and expensive problem in visual effects, consisting of two tasks: matte extraction and screen spill removal. Today’s keyers often fall short on common edge cases including unevenly lit screens, fine edge detail, and sky replacements. Keying thus continues to be a laborious, complex and expensive problem. Our keying algorithm interpolates over a Delaunay tetrahedralization of user-given sample colors to increase flexibility and expressive power. We compare our method to the visual effects industry’s standard keyers, achieving comparable or superior results for matting and spill suppression.
Description
@inproceedings{10.2312:egs.20261009,
booktitle = {Eurographics 2026 - Short Papers},
editor = {Musialski, Przemyslaw and Lim, Isaak},
title = {{A Delaunay Keyer for Colorspace-Local Matte Extraction and Spill Suppression}},
author = {Criddle, Isaac and Holladay, Seth and Egbert, Parris},
year = {2026},
publisher = {The Eurographics Association},
ISSN = {2309-5059},
ISBN = {978-3-03868-299-8},
DOI = {10.2312/egs.20261009}
}