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Wearable Augmented Reality Platform for Aiding Complex 3D Trajectory Tracing.

Sara Condino1, Benish Fida1, Marina Carbone1

  • 1Information Engineering Department, University of Pisa, 56126 Pisa, Italy.

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Summary

This study validates a new augmented reality (AR) platform for high-precision manual tasks. The AR Head-Mounted Display (HMD) system accurately guides users in complex 3D trajectory tracing with over 94% accuracy.

Keywords:
3D trajectory tracinghead-mounted displayoptical trackingvideo see-throughvisual augmented reality

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Area of Science:

  • Medical Engineering
  • Human-Computer Interaction
  • Augmented Reality

Background:

  • Augmented reality (AR) Head-Mounted Displays (HMDs) show promise for manual tasks but face limitations for high-precision work.
  • Technological and human-factor challenges hinder the routine use of AR HMDs in peripersonal space for intricate procedures.

Purpose of the Study:

  • To validate a novel AR platform designed for guiding complex 3D trajectory tracing tasks.
  • To assess the qualitative and quantitative performance of the AR system in supporting high-precision manual operations.

Main Methods:

  • Developed a new AR platform featuring a video see-through (VST) HMD and a dedicated software framework.
  • Conducted a user study where participants performed 3D trajectory tracing on 3D-printed anatomical models.
  • Evaluated tracing accuracy using custom templates against the surface of the phantoms.

Main Results:

  • The AR platform demonstrated high precision, with over 94% of traced trajectories falling within a 1 mm error margin on average.
  • Quantitative results indicate the system's capability to guide complex 3D manual tasks effectively.

Conclusions:

  • The validated AR platform shows significant potential for guiding high-precision manual tasks in the peripersonal space.
  • This technology is poised to accelerate the adoption of AR HMDs in fields requiring meticulous manual dexterity.