Diameter fitting by least square algorithm based on the data acquired with a 2-D laser scanner

摘要

For improving the working efficiency of the forestry harvester, a laser scanner was used to collect the 2-d scan data of the target living-trees. First of all, the noise of the scanning data are filtered with a extraction algorithm. Furthermore, the diameters of the living-trees are calculated out with the least square algorithm and the curve fitting. The results of the research and experiment show that the extraction algorithm the least square algorithm are accurate; the mean error of the calculation is 4.29 millimetre.