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The suitability of lightfield camera depth maps for coordinate measurement applications

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conference contribution
posted on 21.01.2019, 12:04 by Shreedhar Rangappa, Mitul Tailor, Jon PetzingJon Petzing, Peter KinnellPeter Kinnell, Michael R. Jackson
Plenoptic cameras can capture 3D information in one exposure without the need for structured illumination, allowing grey scale depth maps of the captured image to be created. The Lytro, a consumer grade plenoptic camera, provides a cost effective method of measuring depth of multiple objects under controlled lightning conditions. In this research, camera control variables, environmental sensitivity, image distortion characteristics, and the effective working range of two Lytro first generation cameras were evaluated. In addition, a calibration process has been created, for the Lytro cameras, to deliver three dimensional output depth maps represented in SI units (metre). The novel results show depth accuracy and repeatability of +10.0 mm to -20.0 mm, and 0.5 mm respectively. For the lateral X and Y coordinates, the accuracy was +1.56 𝜇m to −2.59 𝜇m and the repeatability was 0.25 µm.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Eighth International Conference on Machine Vision Eighth International Conference on Machine Vision (ICMV 2015)

Citation

RANGAPPA, S. ... et al., 2015. The suitability of lightfield camera depth maps for coordinate measurement applications. Proceedings Volume 9875, Eighth International Conference on Machine Vision (ICMV 2015); 987523 (2015). https://doi.org/10.1117/12.2228593

Publisher

© SPIE

Version

VoR (Version of Record)

Publication date

2015

Notes

One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

ISSN

0277-786X

eISSN

1996-756X

Language

en