Hybrid light coding for fast and high-accuracy shape acquisition

Lulu He*, Sen Wang, Paul Kane, Thrasyvoulos N Pappas

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We present a high-accuracy shape acquisition approach that uses a combined Gray code and phase-shifting structured light projection. The Gray code pattern coarsely divides the projected plane into local regions, whereas phase-shifting precisely determines the pixel-accurate index for each point on the plane. The combination of the two codifications greatly decreases the number of patterns as compared to Gray code alone. It also retains high resolution without the required phase unwrapping step in the phase-shifting algorithm, which is time consuming. Most importantly, it works for multiple objects or discontinuous surfaces without using markers, as employed by the phase-shifting method. Experimental results with real objects and human faces indicate the effectiveness of the proposed approach.

Original languageEnglish (US)
Title of host publicationICIP 2011
Subtitle of host publication2011 18th IEEE International Conference on Image Processing
Pages349-352
Number of pages4
DOIs
StatePublished - Dec 1 2011
Event2011 18th IEEE International Conference on Image Processing, ICIP 2011 - Brussels, Belgium
Duration: Sep 11 2011Sep 14 2011

Other

Other2011 18th IEEE International Conference on Image Processing, ICIP 2011
CountryBelgium
CityBrussels
Period9/11/119/14/11

Keywords

  • 3D modeling
  • Gray code
  • phase-shifting
  • Structured lighting

ASJC Scopus subject areas

  • Software
  • Computer Vision and Pattern Recognition
  • Signal Processing

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