The Virtual Point Light Source Model the Practical Realisation of Photometric Stereo for Dynamic Surface Inspection

  • Lyndon Smith
  • Melvyn Smith
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3617)


The implications of using commercially available non-collimated and distributed illuminates for the application of photometric stereo to dynamic surface inspection tasks are considered. A new form of lighting model, termed the virtual point light source model, is proposed for modelling real distributed illuminates in relative close proximity. The new technique has application for the two- and three-dimensional inspection of moving surfaces using an innovative technique known as dynamic photometric stereo. Such surface inspection tasks have previously been considered difficult or impossible to undertake using conventional imaging techniques. Experimental results are presented in the paper.


Photometric Stereo Virtual Point Surface Inspection Conventional Imaging Technique Strip Light 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Lyndon Smith
    • 1
  • Melvyn Smith
    • 1
  1. 1.Machine Vision Laboratory, Faculty of Computing, Engineering and Mathematical Sciences (CEMS)University of the West of EnglandBristolUK

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