Transcript 下載/瀏覽

1
PSD Motion Capture Device
This paper appears in:
Microwave Conference, 2007. APMC 2007. Asia-Pacific
Issue Date: 11-14 Dec. 2007
On page(s): 1 - 4
Location: Bangkok
E-ISBN: 978-1-4244-0749-1
Print ISBN: 978-1-4244-0748-4
References Cited: 7
INSPEC Accession Number: 10056512
Digital Object Identifier: 10.1109/APMC.2007.4554680
Date of Current Version: 27 2008
Professor ： Yih – Ran Sheu
Student ： Shih-Ping Chou
Student Id ：MA020211
PTT Production Rate：100 ％
2
Outline
• Abstract
• Introduction
• System Overviews
• Estimation of 3D marker positions
• Experimental Results
• Conclusion
3
Abstract
• PSD Module
• Compact 、 Low Cost
• One-time calibration
• PSD 、 IR LED
4
Introduction
• Controlling virtual human motion including joysticks,
mice, keyboards and custom console controllers.
• Capture systems designed for movie production,
simpler infrared sensor-based systems .
• Includes an analog electro-optical sensor and IR
LED markers that are placed on the object to be
tracked.
5
System Overviews(1/4)
• PSD Camera Module
• Active IR LED Markers
• Operating Procedures
6
System Overviews(2/4)
。
Fig 1. An active marker
7
System Overviews(3/4)
Fig2. PSD motion capture system(1)
8
System Overviews(4/4)
Fig3. PSD motion capture system(2)
9
3D marker positions(1/4)
Fig4.
10
3D marker positions(2/4)
Fig5.
11
3D marker positions(3/4)
Fig6.
12
3D marker positions(4/4)
Fig7. Distance measurement by using the detected intensity
13
Prototype of the proposed system(1/2)
Fig9. Measure from 75cm to 150cm
14
Prototype of the proposed system(2/2)
Fig8. Experimental to evaluate sensor performance
15
Distance between PSD and marker(1/3)
Fig9. Measure from 75cm~150cm
16
Distance between PSD and marker(2/3)
Fig10. Measure from 175cm~225cm
17
Distance between PSD and marker(3/3)
Fig11. Measurement error table
18
Conclusion
• Simple, low-cost, high speed motion
capture system.
• PSD sensor module and active markers.
• Average error less than 30cm.
• Distance and large angles to be upgraded.
19
References
• [1] http://www.cqnestq.cqm.
• [2] Michiel de Bakker, Piet W. Verbeek, Gijs K. Steenvoorden, and Ian T. Young,
"The PSD Transfer Function," IEEE Trans. on Electron Device, 49(1), 202 206,(2002).
• [3] Dahong Qian, Wanjun Wang, Ilene J. Busch-Vishniac and A. Bruce Buckman,
"A Method for Measurement of Multiple Light Spot Positions on One Sensitive
Detector (PSD)," IEEE Trans on Instrument and Measurement, 42(1), 14 18,(1993).
• [4] Chellappan Narayanan, A. Bruce Buckman, and Ilene Busch-Vishniac, "Position Detection of
Multiple Light Beams Using Phase Detection,"IEEE Trans on Instrument and Measurement, 43(6),
830 836, (1994).
• [5] J. H. Kim, Y. K. Ryu and H. S. Cho, "Development of real-time motion capture system for 3D
on-line games linked with virtual character,"Proc. ofSPIE, Vol. 5603, 243-252, (2004).
• [6] X. H. Ying and Zy Hu, "Distortion correction of fisheye lens using nonparametric
imaging model," Proc. Asian Conference on Computer Vision, Jeju, Korea, 527-532(2004)
• [7] E. Schwalbe, "Geometric modeling and calibration of fisheye lens camera systems," Proc. ISPRS,
(2005).
20