Multi-Spectral Imaging by Optimized Wide Band Illumination

  • Cui Chi
  • Hyunjin Yoo
  • Moshe Ben-EzraEmail author


We present a novel active imaging approach that uses optimized wide band filtered illumination to obtain multi-spectral reflectance information. Our optimization algorithm utilizes light source and camera spectral information in order to maximize the signal strength and the robustness to noise. Through the use of active wide band illumination, our system can obtain material reflectance information in the presence of moderate (indoor) unknown ambient illumination. Our method is very simple and does not require special equipment. It can be used by photographers to obtain material properties in uncontrolled environment and to synthesize captured scenes under arbitrary illumination.


Multi-spectral imaging Multiplexed illumination 


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  1. 1.Tsinghua UniversityBeijingChina
  2. 2.Gwangju Institute of Science and TechnologyGwangjuSouth Korea
  3. 3.Microsoft Research AsiaBeijingChina

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