Now showing items 1-5 of 13

  • Ameliorating Systematic Errors in Full-Field AMCW Lidar

    Godbaz, John Peter (University of Waikato, 2012)
    This thesis presents an analysis of systematic error in full-field amplitude modulated continuous wave range-imaging systems. The primary focus is on the mixed pixel/multipath interference problem, with digressions into ...
  • Blind deconvolution of depth-of-field limited full-field lidar data by determination of focal parameters

    Godbaz, John Peter; Cree, Michael J.; Dorrington, Adrian A. (Society of Photo-Optical Instrumentation Engineers, 2010)
    We present a new two-stage method for parametric spatially variant blind deconvolution of full-field Amplitude Modulated Continuous Wave lidar image pairs taken at different aperture settings subject to limited depth of ...
  • Closed-form inverses for the mixed pixel/multipath interference problem in AMCW lidar

    Godbaz, John Peter; Cree, Michael J.; Dorrington, Adrian A. (SPIE, 2012)
    We present two new closed-form methods for mixed pixel/multipath interference separation in AMCW lidar systems. The mixed pixel/multipath interference problem arises from the violation of a standard range-imaging assumption ...
  • Defocus restoration for a full-field heterodyne ranger via multiple return separation

    Godbaz, John Peter; Cree, Michael J.; Dorrington, Adrian A.; Künnemeyer, Rainer (IVCNZ, 2007)
    Full-field heterodyne time-of-flight range-imagers allow a large number of range measurements to be taken simultaneously across an entire scene; these range measurements may be corrupted due to limited depth of field. We ...
  • Extending AMCW lidar depth-of-field using a coded aperture

    Godbaz, John Peter; Cree, Michael J.; Dorrington, Adrian A. (Springer-Verlag Berlin Heidelberg, 2011)
    By augmenting a high resolution full-field Amplitude Modulated Continuous Wave lidar system with a coded aperture, we show that depth-of-field can be extended using explicit, albeit blurred, range data to determine PSF ...