JSTS:Journal of Semiconductor Technology and Science

  • 제12권2호
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  • Pages.193-202
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  • 2012
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  • 1598-1657(pISSN)
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  • 2233-4866(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
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A Real-time Compact Structured-light based Range Sensing System

  • Hong, Byung-Joo (Sungkyunkwan University - Department of Electronic and Electrical Engineering) ;
  • Park, Chan-Oh (Sungkyunkwan University - Department of Electronic and Electrical Engineering) ;
  • Seo, Nam-Seok (Sungkyunkwan University - Department of Electronic and Electrical Engineering) ;
  • Cho, Jun-Dong (Sungkyunkwan University - Department of Electronic and Electrical Engineering)
  • 투고 : 2011.09.01
  • 발행 : 2012.06.30
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초록

In this paper, we propose a new approach for compact range sensor system for real-time robot applications. Instead of using off-the-shelf camera and projector, we devise a compact system with a CMOS image-sensor and a DMD (Digital Micro-mirror Device) that yields smaller dimension ($168{\times}50{\times}60mm$) and lighter weight (500g). We also realize one chip hard-wired processing of projection of structured-light and computing the range by exploiting correspondences between CMOS images-ensor and DMD. This application-specific chip processing is implemented on an FPGA in real-time. Our range acquisition system performs 30 times faster than the same implementation in software. We also devise an efficient methodology to identify a proper light intensity to enhance the quality of range sensor and minimize the decoding error. Our experimental results show that the total-error is reduced by 16% compared to the average case.

키워드

참고문헌

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  7. Yi Xu, Daniel G. Aliaga, "An Adaptive Correspondence Algorithm for Modeling Scenes with Strong Interreflections," IEEE Transactions on Visualization and Computer Graphics, Vol.15, No.3, pp.465-480, 2009. https://doi.org/10.1109/TVCG.2008.97
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  10. Chanho Lee, "Smart Bus Arbiter for QoS control in H.264 decoders," Journal of Semiconductor Technology and Science, Vol.11, No.1, pp.33-39, 2011. https://doi.org/10.5573/JSTS.2011.11.1.033

피인용 문헌

  1. Color Image Enhancement Based on Adaptive Nonlinear Curves of Luminance Features vol.15, pp.1, 2015, https://doi.org/10.5573/JSTS.2015.15.1.060
  2. Hot photoluminescence in quantum-well structures under continuous wave pumping vol.7, pp.10, 1999, https://doi.org/10.1088/0268-1242/7/10/001
  3. FPGA Based Adaptive Rate and Manifold Pattern Projection for Structured Light 3D Camera System vol.18, pp.4, 2018, https://doi.org/10.3390/s18041139