Improving laser triangulation sensors using polarization

J. Clark, E. Trucco, H. F. Cheung

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

15 Citations (Scopus)


We report a novel application of polarization-based vision addressing the robustness of laser triangulation range sensors. Such sensors are based on the accurate detection of a pattern of laser light projected onto a scene, usually a point or line. Typical problems arise with highly specularly reflective surfaces, which can generate visible reflections of the light in various parts of the image. This can confuse the detection algorithms and lead to wrong range measurements. This paper demonstrates experimentally the feasibility of polarization-based vision for disambiguating multiple specular inter-reflections of the laser light. We concentrate on metal components as they have high interest for inspection in manufacturing, and show positive results with situations of various complexities.

Original languageEnglish
Title of host publicationIEEE International Conference on Computer Vision
Subtitle of host publicationProceedings of the 5th International Conference on Computer Vision; Cambridge, MA, USA; ; 20 June 1995 through 23 June 1995
Number of pages6
Publication statusPublished - 1995
EventProceedings of the 5th International Conference on Computer Vision - Cambridge, MA, USA
Duration: 20 Jun 199523 Jun 1995


ConferenceProceedings of the 5th International Conference on Computer Vision
CityCambridge, MA, USA


Dive into the research topics of 'Improving laser triangulation sensors using polarization'. Together they form a unique fingerprint.

Cite this