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Paper Abstract and Keywords
Presentation 2005-01-20 15:15
Adaptive Projecting onto Dynamic Scene using Embedded Pattern
Hirobumi Nagai, Yasuhiro Mukaigawa, Yuichi Ohta (Univ. of Tsukuba)
Abstract (in Japanese) (See Japanese page) 
(in English) In Projector-Based Mixed Reality, a method to deal with dynamic scenes is considered as an important factor to achieve interactive systems. We have developed a simple system which consists only of a camera and a projector to track the screen object and to project images onto the object. We propose a method for tracking the screen object based on the pattern embedding technique. This embedded pattern can be well recognized by the camera, despite it is invisible to human eyes. The embedded pattern is extracted from captured images and used for 3-D tracking of the object. Our method utilizes the difference of color sensitivity between camera and human eyes. To find optimal embedding color, we derive transformation functions of color space among projected color, observed color by the camera, and psychophysical color without troublesome calibration. Some experimental results show that the adaptive image projection onto dynamic scenes can be realized.
Keyword (in Japanese) (See Japanese page) 
(in English) projector / mixed reality / object tracking / invisible pattern / / / /  
Reference Info. IEICE Tech. Rep., vol. 104, no. 572, PRMU2004-159, pp. 31-36, Jan. 2005.
Paper # PRMU2004-159 
Date of Issue 2005-01-13 (PRMU) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee PRMU  
Conference Date 2005-01-20 - 2005-01-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To PRMU 
Conference Code 2005-01-PRMU 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive Projecting onto Dynamic Scene using Embedded Pattern 
Sub Title (in English)  
Keyword(1) projector  
Keyword(2) mixed reality  
Keyword(3) object tracking  
Keyword(4) invisible pattern  
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1st Author's Name Hirobumi Nagai  
1st Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
2nd Author's Name Yasuhiro Mukaigawa  
2nd Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
3rd Author's Name Yuichi Ohta  
3rd Author's Affiliation University of Tsukuba (Univ. of Tsukuba)
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Speaker Author-1 
Date Time 2005-01-20 15:15:00 
Presentation Time 30 minutes 
Registration for PRMU 
Paper # PRMU2004-159 
Volume (vol) vol.104 
Number (no) no.572 
Page pp.31-36 
#Pages
Date of Issue 2005-01-13 (PRMU) 


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