Practical testing of the precision and accuracy of target image centering algorithms

Mark R. Shortis; Timothy A. Clarke; Stuart Robson

doi:10.1117/12.220925

13 September 1995 Practical testing of the precision and accuracy of target image centering algorithms

Mark R. Shortis, Timothy A. Clarke, Stuart Robson

Proceedings Volume 2598, Videometrics IV; (1995) https://doi.org/10.1117/12.220925
Event: Photonics East '95, 1995, Philadelphia, PA, United States

Abstract

Close range photogrammetry and vision metrology often use signalized points in the form of active or passive targets. Many theoretical and some practical tests of different target image centering algorithms have been carried out. This paper will describe the empirical testing of several such algorithms using real data acquired for industrial measurement projects and camera calibrations. The precision and accuracy of the centering algorithms will be characterized by analysis of self calibrating network solutions using multiple camera stations and a target array. Particular emphasis will be placed on the comparison between centroiding and ellipse fitting to locate target image center.

Citation Download Citation

Mark R. Shortis, Timothy A. Clarke, and Stuart Robson "Practical testing of the precision and accuracy of target image centering algorithms", Proc. SPIE 2598, Videometrics IV, (13 September 1995); https://doi.org/10.1117/12.220925

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