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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10348

Title: Shadow Multiplexing for Real-Time Silhouette Extraction
Authors: CUYPERS, Tom
FRANCKEN, Yannick
TAELMAN, Johannes
BEKAERT, Philippe
Issue Date: 2009
Publisher: IEEE
Citation: 2009 IEEE COMPUTER SOCIETY CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION WORKSHOPS (CVPR WORKSHOPS 2009), VOLS 1 AND 2. p. 61-68.
Abstract: In this work we propose a real-time implementation for efficient extraction of multi-viewpoint silhouettes using a single camera. The method is based on our previously presented proof-of-concept shadow multiplexing method. We replace the cameras of a typical multi-camera setup with colored light sources and capture the multiplexed shadows. Because we only use a single camera, our setup is much cheaper than a classical setup, no camera synchronization is required, and less data has to be captured and processed. In addition, silhouette extraction is simple as we are segmenting the shadows instead of the texture of objects and background. Demultiplexing runs at 40 fps on current graphics hardware. Therefore this technique is suitable for real-time applications such as collision detection. We evaluate our method on both a real and a virtual setup, and show that our technique works for a large variety of objects and materials.
URI: http://hdl.handle.net/1942/10348
ISI #: 000274887100090
ISBN: 978-1-4244-3993-5
Category: C1
Type: Proceedings Paper
Validation: ecoom, 2011
Appears in Collections: Research publications

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