TY - JOUR
AU - Höhle, Joachim
AB - A new method for assessment of the absolute positional accuracy of lidar point clouds is described. It is based on the plane surfaces of building roofs which are derived from laser footprints. Three such planes intersect at a point and the coordinates of several of these well‐defined points are compared with points determined from aerial photography. From the differences obtained accuracy measures are derived. An analysis regarding the type of error distribution is carried out in order to determine whether to apply either standard or robust accuracy measures. Confidence intervals are derived for each accuracy measure by means of a unique computational method. A practical test with the proposed method revealed a high precision in the intersected points. The absolute positional accuracy of the lidar point cloud was determined with both standard and robust accuracy measures; the latter always produced smaller values. Suggestions for standards in the assessment of the positional accuracy of laser point clouds are made.
TI - Assessing The Positional Accuracy Of Airborne Laser Scanning in urban areas
JF - The Photogrammetric Record
DO - 10.1111/phor.12013
DA - 2013-06-01
UR - https://www.deepdyve.com/lp/wiley/assessing-the-positional-accuracy-of-airborne-laser-scanning-in-urban-s0v1iO0ZP5
SP - 196
EP - 210
VL - 28
IS - 142
DP - DeepDyve
ER -