A photometric stereo using re-projected images for active stereo vision system

Keonhwa Jung, Seokjung Kim, Sungbin Im, Taehwan Choi, Minho Chang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In optical 3D shape measurement, stereo vision with structured light can measure 3D scan data with high accuracy and is used in many applications, but fine surface detail is difficult to obtain. On the other hand, photometric stereo can capture surface details but has disadvantages, in that its 3D data accuracy drops and it requires multiple light sources. When the two measurement methods are combined, more accurate 3D scan data and detailed surface features can be obtained at the same time. In this paper, we present a 3D optical measurement technique that uses re-projection of images to implement photometric stereo without an external light source. 3D scan data is enhanced by combining normal vector from this photometric stereo method, and the result is evaluated with the ground truth.

Original languageEnglish
Article number1058
JournalApplied Sciences (Switzerland)
Volume7
Issue number10
DOIs
Publication statusPublished - 2017 Oct 13

Keywords

  • Active stereo vision
  • Image re-projection
  • Optical 3D measurement
  • Photometric stereo

ASJC Scopus subject areas

  • Materials Science(all)
  • Instrumentation
  • Engineering(all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

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