Real-Time Single Frame Range Finder Using Spatially Phase-Modulated Light

• Goto Kenji

  Department of Information Physics and Computing, Graduate School of Information Science and Technology, University of Tokyo

• Ono Nobutaka

  Department of Information Physics and Computing, Graduate School of Information Science and Technology, University of Tokyo

• Ando Shigeru

  Department of Information Physics and Computing, Graduate School of Information Science and Technology, University of Tokyo

Abstract

This paper proposes a novel 3-D measurement system using spatially phase-modulated light, which have a single frequency for time but have different phase according to the projection angle. Another key of our system is the three-phase correlation image sensor(3PCIS), which generates temporal correlations between light intensity and three external reference signals on each pixel. Within a frame, amplitude and phase of the spatially phase-modulated light are demodulated and output by the 3PCIS to compute the individual angle on each pixel. We implemented this system using our CMOS 32 × 32 -pixel 3PCIS, and successfully reconstructed the range map on each pixel.

Journal

• SICE Annual Conference Program and Abstracts

  SICE Annual Conference Program and Abstracts 2002 (0), 17-17, 2002

  The Society of Instrument and Control Engineers

Keywords

• range finder
• 3-D measurement
• spatial phase modulation
• correlation image sensor

Details

• CRID: 1390001205584345088
• NII Article ID: 130006960139
• DOI: 10.11499/sicep.2002.0.17.0
• Text Lang: en
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed