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

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.

[1]  Stuart Robson,et al.  Seeing the wood from the trees - an example of optimised digital photogrammetric deformation detection , 1995 .

[2]  A. W. Burner,et al.  Calibration Tests of Industrial and Scientific CCD Cameras , 1991 .

[3]  David J. Purll,et al.  Design Of A Polaris Star Sensor Using Charge-Coupled Device (CCD) Imaging, And LSI And Microprocessor-Based Signal Processing , 1979, Other Conferences.

[4]  John G. Fryer,et al.  Estimator for the random error in subpixel target location and its use in the bundle adjustment , 1994, Other Conferences.

[5]  Jin Chen,et al.  Suitability of the Pulnix TM6CN CCD camera for photogrammetric measurement , 1993, Other Conferences.

[6]  H. Beyer.  Geometric and radiometric analysis of a CCD-camera based photogrammetric close-range system , 1992 .

[7]  Edwin W. Dennison,et al.  Optical tracking using charge-coupled devices , 1987 .

[8]  Wolfgang Riechmann,et al.  Photogrammetric investigation of CCD cameras , 1990, ISPRS International Conference on Computer Vision and Remote Sensing.

[9]  Timothy A. Clarke,et al.  Comparison of some techniques for the subpixel location of discrete target images , 1994, Other Conferences.

[10]  Geoff West,et al.  A survey and examination of subpixel measurement techniques , 1990, ISPRS International Conference on Computer Vision and Remote Sensing.

[11]  S. El-Hakim.  Real-time image metrology with CCD cameras , 1986 .

[12]  Wei-Hsin Ho,et al.  Close-range mapping with a solid state camera , 1986 .

[13]  Clive S. Fraser,et al.  METRIC EXPLOITATION OF STILL VIDEO IMAGERY , 1995 .

[14]  C. Fraser,et al.  Variation of distortion within the photographic field , 1992 .

[15]  Walter L. Snow,et al.  Calibration of CCD cameras for field and frame capture modes , 1995, Other Conferences.

[16]  Mark R. Shortis,et al.  Multisensor system self-calibration , 1995, Other Conferences.

[17]  J. Trinder,et al.  Precision of digital target location , 1989 .

[18]  T. A. Clarke.  Analysis of the properties of targets used in digital close-range photogrammetric measurement , 1994, Other Conferences.

[19]  Brooks A. Childers,et al.  The calibration of video cameras for quantitative measurements , 1993 .

[20]  Walter L. Snow,et al.  COMPARATIVE GEOMETRIC TESTS OF INDUSTRIAL AND SCIENTIFIC CCD CAMERAS USING PLUMB LINE AND TEST RANGE CALIBRATIONS , 1995 .

[21]  Ivar Maalen-Johansen.  Precision of subpixel measurements in videometry , 1994, Other Conferences.

[22]  J. M. Raynor,et al.  The technology and practical problems of pixel-synchronous CCD data acquisition for optical metrology applications , 1990, ISPRS International Conference on Computer Vision and Remote Sensing.

[23]  Xinchi Wang,et al.  Analysis of subpixel target location accuracy using Fourier-transform-based models , 1995, Other Conferences.