三维激光扫描技术在土木工程领域的应用(3)

2020-11-29 00:05

三维激光扫描技术在土木工程领域的应用

ABSTRACT

ABSTRACT

3D-LaserScanningsystemisoneofthemeasuringinstrumentsintheindustrialmeasuringinstruments.It

spacial

thenCallcapturesthethree-dimensionalgeometricaldataofobjectorterrainusingtheahi曲-speedlasermeasuringinaveryshorttime.andsavethedatainformofpointclouds.

Inordertoapplythisnewtechniqueincivilengineering.thispaperassociates、蕊t11theFARO3D—LaserScanningsysteI玛researchesthebasicprinciplesandthestructurecmposingofthesystem,andthemature

asoftwaresoftheReverseEngineeringarealsostudied,finallypresentintegratemethodofapplication

includingthehardwareandsoftware,someeffectivearithmeticindifferentimportantaspectsbelongtothepreprocessingofpo缸cloudsaredeveloped,suchasNoise

areducing,Multi-viewpo硫cloudsregistration.Inresult,inthetightofthe

deficiencyinsoftware,anewpoimcloudspreprocessingsoftwareisdesignedandprogrammingintheconditionoftheVisualC++.net、Matlab、OpenGL,andthenusingthefactualdataofaarchitecturetoprovethefeasibilityofthenewsoftware.Followingworkshavebeendoneinthispaper:

andthestructure1)Summarizethebasicprinciplescomposingof3D-Laser

Scanningsystem,theachievementsinthefieldsofCivilEngineering,explorethedeficiency.

2)Researchthehardware

processingofofmostkindsof3D-LaserScanningsystem,andthepo硫clouds,compareandanalyzetheerrorsource、factorsofinfluencingtheaccuracyof3D—LaserScanningsystem.

3)Research

methodthepreprocessingofofmagnanimitydifferentpointclouds,andintroducetheofpoilltclouds,presentnoise-reducingforkinds

distance—dividedmethodtoeliminateerror

ofpointsandself-adjustingarithmeticGaussian—Shapedfiltering.Itisprovedthatinpracticethisarithmeticisfar

amorefastthanothers,andbaringbettereffectofnoise-reducing.Ⅱ


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