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Free-form Light Actuators — Fabrication and Control of Actuation in Microscopic Scale
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Omnidirectional structured light in a flexible configuration.

Carmen Paniagua1, Luis Puig, José J Guerrero

  • 1Departamento de Informática e Ingeniería de Sistemas, Instituto de Investigacíon en Ingeniería de Aragón I3A, University of Zaragoza, E-50018, Spain. josechu.guerrero@unizar.es.

Sensors (Basel, Switzerland)
|October 17, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a flexible structured light system using an omnidirectional camera and conic patterns for 3D reconstruction. This innovation enables accurate depth and orientation recovery without rigid calibration, aiding applications like visual assistance.

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Area of Science:

  • Computer Vision
  • Robotics
  • 3D Sensing

Background:

  • Traditional structured light systems rely on rigid, pre-calibrated camera-emitter configurations.
  • This rigidity limits adaptability and real-world applicability in dynamic environments.

Purpose of the Study:

  • To develop a novel omnidirectional structured light system with a flexible configuration.
  • To enable 3D information acquisition without strict calibration requirements.

Main Methods:

  • Integration of an omnidirectional camera with a conic pattern light emitter.
  • Computation of the light emitter's location within the omnidirectional image.
  • Conic reconstruction to recover 3D surface depth and orientation.

Main Results:

  • Successful 3D reconstruction of surfaces with projected conic patterns.
  • Demonstration of flexible configuration overcoming traditional system limitations.
  • Accurate recovery of scene surface depth and orientation.

Conclusions:

  • The proposed flexible omnidirectional structured light system offers a versatile approach to 3D perception.
  • Potential applications include assistive technologies for the visually impaired through wearable systems.