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Proceedings Paper

User region extraction from dynamic projected background for a virtual environment system
Author(s): Taeyoung Uhm; Hanhoon Park; Moon-Hyun Lee; Jong-Il Park
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Paper Abstract

There has been considerable interest in immersive and realistic virtual environment system and how to improve human and computer interaction has been a main challenge. For vision-based human-computer interaction, extraction of user region from camera images is an essential part. In this paper, we propose a background subtraction method that segments dynamic projected background in a rear-projection-based virtual environment system. In the projector-camera system, the projected background is inherently known by the projector input images although its appearance is changed by the geometric and radiometric transformation between projector and camera. Therefore, we can compute the expected background location and appearance based on geometric and radiometric calibration of projector-camera system and thus separate user region from dynamic projected background by simple subtraction between camera images and the computed background. Experimental results are given for verifying the usefulness of the proposed method.

Paper Details

Date Published: 26 February 2010
PDF: 6 pages
Proc. SPIE 7546, Second International Conference on Digital Image Processing, 75462I (26 February 2010); doi: 10.1117/12.853010
Show Author Affiliations
Taeyoung Uhm, Hanyang Univ. (Korea, Republic of)
Hanhoon Park, NHK STRL (Japan)
Moon-Hyun Lee, Hanyang Univ. (Korea, Republic of)
Jong-Il Park, Hanyang Univ. (Korea, Republic of)

Published in SPIE Proceedings Vol. 7546:
Second International Conference on Digital Image Processing
Kamaruzaman Jusoff; Yi Xie, Editor(s)

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