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A FEASIBILITY STUDY ON USE OF GENERIC MOBILE LASER SCANNING SYSTEM FOR DETECTING ASPHALT PAVEMENT CRACKS

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Academic year: 2017

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Figure  4.  Principle  of  the  voxel-based  upward-growing  algorithm  (Adapted  from  Yu  et  al.,  2015b):  (a)  segmented  raw  point  cloud,  (b)  octree  spatial  index  in  a  local  block,  and  (c)  voxel-based upward-growing pattern
Figure 6. Illustration of the derived DTM high-pass convolution  result.
Figure 10. Results of a sample of alligator cracks: (a) detected  results containing the alligator cracks, (b) the corresponding  DTM high-pass convolution result

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