This paper is the study which is head tracker using pattern matching. Proposal algorithm obtains initial attitude of head tracker using pattern matching. Optical head tracker consists of infrared LEDs(features) which are attached helmet as pattern, stereo infrared cameras. Proposal algorithm analyzes patterns by error rate of feature distance and estimates feature characteristic number. Initial attitude of head tracker is obtained to compare map data and feature characteristic number.

/pdf/optical-head-tracker-using-pattern-matching-for-initial-cu5ascwm7y.pdf

A real-time optical head tracker based on 3D prediction and correction

Optical Head Tracker using Pattern Matching for Initial Attitude

methods

An Algorithm for Least-Squares Estimation of Nonlinear Parameters

From the Publisher:
A basic problem in computer vision is to understand the structure of a real world scene given several images of it. Recent major developments in the theory and practice of scene reconstruction are described in detail in a unified framework. The book covers the geometric principles and how to represent objects algebraically so they can be computed and applied. The authors provide comprehensive background material and explain how to apply the methods and implement the algorithms directly.

Multiple view geometry in computer vision

A new stereo vision tracker setup for virtual and augmented reality applications is presented in this paper. The performance, robustness and accuracy of the system are achieved under real-time constraints. The method is based on blobs extraction, two-dimensional prediction, the epipolar constraint and three-dimensional reconstruction. Experimental results using a stereo rig setup (equipped with IR capabilities) and retroreflective targets are presented to demonstrate the capabilities of our optical tracking system. The system tracks up to 25 independent targets at 30 Hz.

/pdf/a-new-optical-tracking-system-for-virtual-and-augmented-9s3bgi2uls.pdf

A real-time optical head tracker based on 3D prediction and correction

Citations

Optical Head Tracker using Pattern Matching for Initial Attitude

References

An Algorithm for Least-Squares Estimation of Nonlinear Parameters

Multiple view geometry in computer vision

A new optical tracking system for virtual and augmented reality applications

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