A vehicle-borne and line-structure laser based two-dimensional surface roughness measurement instrument
by Xiaojie Li; Kai Zhao
International Journal of Vehicle Autonomous Systems (IJVAS), Vol. 13, No. 2, 2016

Abstract: Surface roughness is the description of surface irregularity and micro topographic randomness. It is an important factor affecting soil microwave radiation. Since both the microwave radiometer and radar detector measure a plane, using 3D data to calculate the 2D surface roughness will get better results. In this paper, we present a line-structure laser based vehicle-borne 2D surface roughness measurement instrument which can measure a much bigger size and thus bring higher accuracy and greater capability. Meanwhile, the portability is not affected since it is carried around by a vehicle. The precision test and field test showed that the maximum average relative error is only 1.3%. We also implemented a graphics processing unit version of the data processing program, which reduced the runtime to 540 seconds from 45,393 seconds on central processing unit.

Online publication date: Fri, 02-Sep-2016

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