Three Dimensional Motion Tracking using Stereo Vision

1
Three Dimensional Motion Tracking using Stereo
Vision

• Sasakthi S. Abeysinghe
• Loganathan Krishanthan
• September 2004

2
Preamble

• 3D Motion Tracking Techniques
• Mechanical

Image courtesy of 4th Wave, Inc.
3
Preamble

• 3D Motion Tracking Techniques
• Mechanical
• Optical Fibre

Image courtesy of Fake Space, Inc.
4
Preamble

• 3D Motion Tracking Techniques
• Mechanical
• Optical Fibre
• Magnetic

Image courtesy of Polhemus, Inc.
5
Preamble

• 3D Motion Tracking Techniques
• Mechanical
• Optical Fibre
• Magnetic
• Acoustic

6
Preamble

• 3D Motion Tracking Techniques
• Mechanical
• Optical Fibre
• Magnetic
• Acoustic
• Optical

Image courtesy of ISCAN, Inc.
7
Preamble

• 3D Motion Tracking Techniques
• Optical Techniques need
• High Performance computers and optimised
  algorithms
• Adequate Lighting
• Line of Sight

8
Preamble

• 3D Motion Tracking Techniques
• Optical Techniques need
• High Performance computers
• Optimised algorithms
• Adequate Lighting
• However, Optical Techniques offer contact-free
  operation

9
Goal

• A generic platform for 3D motion tracking
• Use optical sensor based inputs
• Separate data processing from information use
• Make 3D information available to small and simple
  devices.

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Approach
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Design - 3D Positioning
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Design Communications Protocol
13
The Prototype

• Implementation Language
• Borland Delphi 7.0
• Technologies
• OpenGL, DirectX, RSA Encryption, XML
• Open Source Libraries
• DSPack, GLScene, Delphi HH Kit, Turbo Power
  Lockbox

14
The Prototype
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The Future

• Object Recognition Module
• Cross-Protocol Communications Module
• Data Compression in Communications
• More than two cameras
• Movable image sources
• Integrating with other Motion Tracking techniques
• Coordination between multiple Servers

16
Conclusion

• Academic and Commercial Potential
• Physical Automation
• Behavioural Analysis
• Surveillance
• Machine Vision
• Etc.