MoTrack 3D Three Dimensional Motion Tracking using Stereo Vision

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MoTrack 3DThree Dimensional Motion Tracking
using Stereo Vision

• S. S. Abeysinghe
• 2004
• Manchester Metropolitan University, UK

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Agenda

• Project Background
• Approach
• Analysis
• Implementation
• The Future

• Aim and Objectives
• Input from the Literature
• Design
• Evaluation
• Conclusion

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Project Background

• 3D Motion Tracking Techniques
• Mechanical
• Optical Fibre
• Acoustic
• Magnetic
• Optical
• Optical Techniques need
• High Performance computers
• Optimised algorithms
• Adequate Lighting
• Optical Techniques offer contact-free operation

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Aim

• To create and evaluate a generic platform using
  optical sensor based inputs and image processing
  techniques, in order to capture the motion of any
  visible three-dimensional object, and securely
  distribute that information among hardware
  devices and software applications which will
  thereafter react to the motion of the target.

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Objectives

• Prepare a Terms of Reference
• Conduct a Literature Survey
• Feasibility Study and Requirement Analysis
• Prototype Design
• Prototype Implementation
• Testing and Evaluation
• Present the Prototype
• Present an Interim Report
• Present the final Report

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Approach
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Input from Literature

• Why use
• Optical Motion Tracking Techniques
• RSA for secure communication
• Communication with Hardware Devices
• OpenGL for 3D Display
• DirectInput for image capture

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Analysis and Requirements Capture

• Tracking of 3D objects
• Reliance on Low-cost optical sensor based inputs
• Provide location information to external devices
• Secure client-server communication
• A generic platform
• Easy Deployment
• User Authentication and customisable settings
• Event Logging

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Design - 3D Positioning
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Design - Communications
Recipient
Sender
Connect to Recipient
Accept Connection Request
Connection Successful
Request for Encryption requirement and public key
Send Encryption requirement and public key
Connection Failure or Timeout
Do not use Encryption
Connection Failure or Timeout
Use Encryption
Encrypt Message
Send Message
Receive and Process Message
Log Error
Log Error
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Design Communications Protocol
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Implementation

• Borland Delphi 7.0
• Open Source Libraries
• DSPack, GLScene, Delphi HH Kit, Turbo Power
  Lockbox
• Problems
• Processing Power
• Parallel Cameras
• True 320x240 resolution web cameras
• Microsoft Windows port restrictions
• Multithreaded execution problems in Microsoft
  Controls

13
Evaluation

• Expert Evaluation using four user-groups
• Academic
• Software Engineering
• Management
• System Administration
• Evaluation Criteria
• The Solution
• The Features offered
• The Prototype
• The Potential

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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 MoTrack 3D Servers

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Conclusion

• Research, the true definition
• Hardware is no longer a limitation
• Vision Based 3D Motion Tracking is now more
  accessible to the Commercial and Academic Worlds