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对于3D点云处理来说,PCL完全是一个的模块化的现代C++模板库。其基于以下第三方库:Boost、Eigen、FLANN、VTK、CUDA、OpenNI、Qhull,实现点云相关的获取、滤波、分割、配准、检索、特征提取、识别、追踪、曲面重建、可视化等。
PCL利用OpenMP、GPU、CUDA等先进高性能计算技术,通过并行化提高程序实时性。K近邻搜索操作的构架是基于FLANN (Fast Library for Approximate Nearest Neighbors)所实现的,速度也是技术中最快的。PCL中的所有模块和算法都是通过Boost共享指针来传送数据的,因而避免了多次复制系统中已存在的数据的需要,从0.6版本开始,PCL就已经被移入到Windows,MacOS和Linux系统,并且在Android系统也已经开始投入使用,这使得PCL的应用容易移植与多方发布。(来自于百度百科搜索)
在配置时应多加注意pcl版本问题和安装文件位置问题,否则后面改环境配置问题时会有很多小细节错误,会花费较多的时间。
点击下方网址进入PCL下载端,一定要注意版本问题,我装的是PCL1.12.0版本。如下图所示,要下载ALLInOne和pdb两个文件。
https://github.com/PointCloudLibrary/pcl/releases
图 1
在下载完成后,双击打开ALLInOne那个文件,打开界面如下图所示。
图 2
接着下一步后选择第二个再点下一步。
图 3
这里的安装目录尤为重要,要记住自己的安装位置,我是将安装位置放在D盘,在选择D盘后会自动在后面加上PCL 1.12.0文件,如下图4和图5所示。
图 4
图 5
接着点击安装就可。如图6所示。
图 6
在安装好的文件夹里,在3rdParty里找到OpenNI2文件如图7所示,里面有个程序,双击打开显示界面如图8所示。
图 7
图 8
点击下一步,然后点击remove,把安装位置改到与该程序同一个文件夹里,如图9和图10所示。在安装完成后结果如图11所示。然后将前面下载的pdb压缩文件解压到pcl\bin目录下。
图 9
图 10
图 11
图 12
Pcl下载已经完成,接下来进行电脑环境配置,打开电脑属性,选择高级设置,选择环境变量,如下图13所示。找到path选项如图14,然后点击编辑,在路径下依次添加环境,如图15所示。电脑环境配置也就完成了。
%PCL_ROOT%\3rdParty\FLANN\bin
%PCL_ROOT%\3rdParty\VTK\bin
%OPENNI2_REDIST64%
%OPENNI2_LIB64%
%OPENNI2_INCLUDE64%
(我安装的文件在D盘中,所以是这样的环境,如果安装在其他盘,要自行修改)
图 13
图 14
图 15
上面完成了PCL 1.12.0安装和电脑环境配置,一般按照步骤,然后留意一下文件安装位置即可。
意思就是在VS2019中可以调用点云库里的函数以及功能,实现对点云的数据处理。接下来分步骤讲解怎么配置。
首先打开安装好的VS2019,建立一个空项目如图16所示。我的空项目命名为PCLelement,然后在源文件下添加一个空项目。然后右击打开PCLelement选择属性,出现如图17所示界面,然后将配置改成Debug,平台改成x64。接着点击配置属性——调试——环境,在环境中添加如下路径。
PATH=D:\PCL1.12.0\\bin;
D:\PCL1.12.0\\3rdParty\FLANN\bin;
D:\PCL1.12.0\\3rdParty\VTK\bin;
D:\PCL 1.12.0\\3rdParty\OpenNI2\Tools
图 16
图 17
接着打开C/C++选项选择语言,将符合模式改成否,如图18所示。接着所有选项中SDL检查也改成否。如图19所示。
图 18
图 19
这是项目的属性就已经配好了,但是还没有加入pcl的库,为了以后使用方便,不用每次打开一个需要pcl的新项目都要加入一次pcl库,我接下来介绍的方法就是保存一个这样的属性,可以随时调用的。选择VS2019界面中的视图——其他视图——属性管理器,打开如下图20所示界面。我先配置debug环境,一般在学校里自己用的配置的都是debug环境,在公司里开源的就用release环境。所以点开debug,然后右击选择添加新的项目,保存为PCL1.12.0(文件命名随意,为了方便后面调用比较明白,所以命名为这个)。接着双击打开PCL1.12.0属性页。
图 20
添加包含目录:VC++目录——包含目录——点击右列,出现一个下拉列表,点击后出现编辑,点击进入。
图 21
D:\PCL 1.12.0\include\pcl-1.12
D:\PCL 1.12.0\3rdParty\Boost\include\boost-1_76
D:\PCL 1.12.0\3rdParty\Eigen\eigen3
D:\PCL 1.12.0\3rdParty\FLANN\include
D:\PCL 1.12.0\3rdParty\Qhull\include
D:\PCL 1.12.0\3rdParty\VTK\include\vtk-9.0
D:\PCL 1.12.0\3rdParty\OpenNI2\Include
添加库目录:VC++目录——库目录——点击右列,出现一个下拉列表,点击后出现编辑,点击进入。
图 22
D:\PCL 1.12.0\lib
D:\PCL 1.12.0\3rdParty\Boost\lib
D:\PCL 1.12.0\3rdParty\FLANN\lib
D:\PCL 1.12.0\3rdParty\Qhull\lib
D:\PCL 1.12.0\3rdParty\OpenNI2\Lib
D:\PCL 1.12.0\3rdParty\VTK\lib
这里出现的问题就是一定要看清楚自己下载的pcl是什么版本的,不要胡乱粘贴复制,还有你下载的文件位置也要看清楚。
接着打开链接器——常规——附加库目录加入.lib库,和上方的一样。
图 23
最后就是配置附加依赖项:在链接器——输入——附加依赖项中添加如下:
图 24
(注意这是在debug环境下)
pcl_commond.lib
pcl_featuresd.lib
pcl_filtersd.lib
pcl_iod.lib
pcl_io_plyd.lib
pcl_kdtreed.lib
pcl_keypointsd.lib
pcl_mld.lib
pcl_octreed.lib
pcl_outofcored.lib
pcl_peopled.lib
pcl_recognitiond.lib
pcl_registrationd.lib
pcl_sample_consensusd.lib
pcl_searchd.lib
pcl_segmentationd.lib
pcl_stereod.lib
pcl_surfaced.lib
pcl_trackingd.lib
pcl_visualizationd.lib
libboost_atomic-vc142-mt-gd-x64-1_76.lib
libboost_bzip2-vc142-mt-gd-x64-1_76.lib
libboost_chrono-vc142-mt-gd-x64-1_76.lib
libboost_container-vc142-mt-gd-x64-1_76.lib
libboost_context-vc142-mt-gd-x64-1_76.lib
libboost_contract-vc142-mt-gd-x64-1_76.lib
libboost_coroutine-vc142-mt-gd-x64-1_76.lib
libboost_date_time-vc142-mt-gd-x64-1_76.lib
libboost_exception-vc142-mt-gd-x64-1_76.lib
libboost_fiber-vc142-mt-gd-x64-1_76.lib
libboost_filesystem-vc142-mt-gd-x64-1_76.lib
libboost_graph-vc142-mt-gd-x64-1_76.lib
libboost_graph_parallel-vc142-mt-gd-x64-1_76.lib
libboost_iostreams-vc142-mt-gd-x64-1_76.lib
libboost_json-vc142-mt-gd-x64-1_76.lib
libboost_locale-vc142-mt-gd-x64-1_76.lib
libboost_log-vc142-mt-gd-x64-1_76.lib
libboost_log_setup-vc142-mt-gd-x64-1_76.lib
libboost_math_c99-vc142-mt-gd-x64-1_76.lib
libboost_math_c99f-vc142-mt-gd-x64-1_76.lib
libboost_math_c99l-vc142-mt-gd-x64-1_76.lib
libboost_math_tr1-vc142-mt-gd-x64-1_76.lib
libboost_math_tr1f-vc142-mt-gd-x64-1_76.lib
libboost_math_tr1l-vc142-mt-gd-x64-1_76.lib
libboost_mpi-vc142-mt-gd-x64-1_76.lib
libboost_nowide-vc142-mt-gd-x64-1_76.lib
libboost_numpy38-vc142-mt-gd-x64-1_76.lib
libboost_prg_exec_monitor-vc142-mt-gd-x64-1_76.lib
libboost_program_options-vc142-mt-gd-x64-1_76.lib
libboost_python38-vc142-mt-gd-x64-1_76.lib
libboost_random-vc142-mt-gd-x64-1_76.lib
libboost_regex-vc142-mt-gd-x64-1_76.lib
libboost_serialization-vc142-mt-gd-x64-1_76.lib
libboost_stacktrace_noop-vc142-mt-gd-x64-1_76.lib
libboost_stacktrace_windbg-vc142-mt-gd-x64-1_76.lib
libboost_stacktrace_windbg_cached-vc142-mt-gd-x64-1_76.lib
libboost_system-vc142-mt-gd-x64-1_76.lib
libboost_test_exec_monitor-vc142-mt-gd-x64-1_76.lib
libboost_thread-vc142-mt-gd-x64-1_76.lib
libboost_timer-vc142-mt-gd-x64-1_76.lib
libboost_type_erasure-vc142-mt-gd-x64-1_76.lib
libboost_unit_test_framework-vc142-mt-gd-x64-1_76.lib
libboost_wave-vc142-mt-gd-x64-1_76.lib
libboost_wserialization-vc142-mt-gd-x64-1_76.lib
libboost_zlib-vc142-mt-gd-x64-1_76.lib
flann-gd.lib
flann_cpp-gd.lib
flann_cpp_s-gd.lib
flann_s-gd.lib
qhullcpp_d.lib
qhullstatic_d.lib
qhullstatic_rd.lib
qhull_rd.lib
vtkChartsCore-9.0d.lib
vtkCommonColor-9.0d.lib
vtkCommonComputationalGeometry-9.0d.lib
vtkCommonCore-9.0d.lib
vtkCommonDataModel-9.0d.lib
vtkCommonExecutionModel-9.0d.lib
vtkCommonMath-9.0d.lib
vtkCommonMisc-9.0d.lib
vtkCommonSystem-9.0d.lib
vtkCommonTransforms-9.0d.lib
vtkDICOMParser-9.0d.lib
vtkDomainsChemistry-9.0d.lib
vtkDomainsChemistryOpenGL2-9.0d.lib
vtkdoubleconversion-9.0d.lib
vtkexodusII-9.0d.lib
vtkexpat-9.0d.lib
vtkFiltersAMR-9.0d.lib
vtkFiltersCore-9.0d.lib
vtkFiltersExtraction-9.0d.lib
vtkFiltersFlowPaths-9.0d.lib
vtkFiltersGeneral-9.0d.lib
vtkFiltersGeneric-9.0d.lib
vtkFiltersGeometry-9.0d.lib
vtkFiltersHybrid-9.0d.lib
vtkFiltersHyperTree-9.0d.lib
vtkFiltersImaging-9.0d.lib
vtkFiltersModeling-9.0d.lib
vtkFiltersParallel-9.0d.lib
vtkFiltersParallelImaging-9.0d.lib
vtkFiltersPoints-9.0d.lib
vtkFiltersProgrammable-9.0d.lib
vtkFiltersSelection-9.0d.lib
vtkFiltersSMP-9.0d.lib
vtkFiltersSources-9.0d.lib
vtkFiltersStatistics-9.0d.lib
vtkFiltersTexture-9.0d.lib
vtkFiltersTopology-9.0d.lib
vtkFiltersVerdict-9.0d.lib
vtkfreetype-9.0d.lib
vtkGeovisCore-9.0d.lib
vtkgl2ps-9.0d.lib
vtkglew-9.0d.lib
vtkhdf5-9.0d.lib
vtkhdf5_hl-9.0d.lib
vtkImagingColor-9.0d.lib
vtkImagingCore-9.0d.lib
vtkImagingFourier-9.0d.lib
vtkImagingGeneral-9.0d.lib
vtkImagingHybrid-9.0d.lib
vtkImagingMath-9.0d.lib
vtkImagingMorphological-9.0d.lib
vtkImagingSources-9.0d.lib
vtkImagingStatistics-9.0d.lib
vtkImagingStencil-9.0d.lib
vtkInfovisCore-9.0d.lib
vtkInfovisLayout-9.0d.lib
vtkInteractionImage-9.0d.lib
vtkInteractionStyle-9.0d.lib
vtkInteractionWidgets-9.0d.lib
vtkIOAMR-9.0d.lib
vtkIOAsynchronous-9.0d.lib
vtkIOCityGML-9.0d.lib
vtkIOCore-9.0d.lib
vtkIOEnSight-9.0d.lib
vtkIOExodus-9.0d.lib
vtkIOExport-9.0d.lib
vtkIOExportGL2PS-9.0d.lib
vtkIOExportPDF-9.0d.lib
vtkIOGeometry-9.0d.lib
vtkIOImage-9.0d.lib
vtkIOImport-9.0d.lib
vtkIOInfovis-9.0d.lib
vtkIOLegacy-9.0d.lib
vtkIOLSDyna-9.0d.lib
vtkIOMINC-9.0d.lib
vtkIOMotionFX-9.0d.lib
vtkIOMovie-9.0d.lib
vtkIONetCDF-9.0d.lib
vtkIOOggTheora-9.0d.lib
vtkIOParallel-9.0d.lib
vtkIOParallelXML-9.0d.lib
vtkIOPLY-9.0d.lib
vtkIOSegY-9.0d.lib
vtkIOSQL-9.0d.lib
vtkIOTecplotTable-9.0d.lib
vtkIOVeraOut-9.0d.lib
vtkIOVideo-9.0d.lib
vtkIOXML-9.0d.lib
vtkIOXMLParser-9.0d.lib
vtkjpeg-9.0d.lib
vtkjsoncpp-9.0d.lib
vtklibharu-9.0d.lib
vtklibproj-9.0d.lib
vtklibxml2-9.0d.lib
vtkloguru-9.0d.lib
vtklz4-9.0d.lib
vtklzma-9.0d.lib
vtkmetaio-9.0d.lib
vtknetcdf-9.0d.lib
vtkogg-9.0d.lib
vtkParallelCore-9.0d.lib
vtkParallelDIY-9.0d.lib
vtkpng-9.0d.lib
vtkpugixml-9.0d.lib
vtkRenderingAnnotation-9.0d.lib
vtkRenderingContext2D-9.0d.lib
vtkRenderingContextOpenGL2-9.0d.lib
vtkRenderingCore-9.0d.lib
vtkRenderingFreeType-9.0d.lib
vtkRenderingGL2PSOpenGL2-9.0d.lib
vtkRenderingImage-9.0d.lib
vtkRenderingLabel-9.0d.lib
vtkRenderingLOD-9.0d.lib
vtkRenderingOpenGL2-9.0d.lib
vtkRenderingSceneGraph-9.0d.lib
vtkRenderingUI-9.0d.lib
vtkRenderingVolume-9.0d.lib
vtkRenderingVolumeOpenGL2-9.0d.lib
vtkRenderingVtkJS-9.0d.lib
vtksqlite-9.0d.lib
vtksys-9.0d.lib
vtkTestingRendering-9.0d.lib
vtktheora-9.0d.lib
vtktiff-9.0d.lib
vtkverdict-9.0d.lib
vtkViewsContext2D-9.0d.lib
vtkViewsCore-9.0d.lib
vtkViewsInfovis-9.0d.lib
vtkWrappingTools-9.0d.lib
vtkzlib-9.0d.lib
如果是release的文件添加如下:
pcl_common.lib
pcl_features.lib
pcl_filters.lib
pcl_io.lib
pcl_io_ply.lib
pcl_kdtree.lib
pcl_keypoints.lib
pcl_ml.lib
pcl_octree.lib
pcl_outofcore.lib
pcl_people.lib
pcl_recognition.lib
pcl_registration.lib
pcl_sample_consensus.lib
pcl_search.lib
pcl_segmentation.lib
pcl_stereo.lib
pcl_surface.lib
pcl_tracking.lib
pcl_visualization.lib
libboost_atomic-vc142-mt-x64-1_76.lib
libboost_bzip2-vc142-mt-x64-1_76.lib
libboost_chrono-vc142-mt-x64-1_76.lib
libboost_container-vc142-mt-x64-1_76.lib
libboost_context-vc142-mt-x64-1_76.lib
libboost_contract-vc142-mt-x64-1_76.lib
libboost_coroutine-vc142-mt-x64-1_76.lib
libboost_date_time-vc142-mt-x64-1_76.lib
libboost_exception-vc142-mt-x64-1_76.lib
libboost_fiber-vc142-mt-x64-1_76.lib
libboost_filesystem-vc142-mt-x64-1_76.lib
libboost_graph-vc142-mt-x64-1_76.lib
libboost_graph_parallel-vc142-mt-x64-1_76.lib
libboost_iostreams-vc142-mt-x64-1_76.lib
libboost_json-vc142-mt-x64-1_76.lib
libboost_locale-vc142-mt-x64-1_76.lib
libboost_log-vc142-mt-x64-1_76.lib
libboost_log_setup-vc142-mt-x64-1_76.lib
libboost_math_c99-vc142-mt-x64-1_76.lib
libboost_math_c99f-vc142-mt-x64-1_76.lib
libboost_math_c99l-vc142-mt-x64-1_76.lib
libboost_math_tr1-vc142-mt-x64-1_76.lib
libboost_math_tr1f-vc142-mt-x64-1_76.lib
libboost_math_tr1l-vc142-mt-x64-1_76.lib
libboost_mpi-vc142-mt-x64-1_76.lib
libboost_nowide-vc142-mt-x64-1_76.lib
libboost_numpy38-vc142-mt-x64-1_76.lib
libboost_prg_exec_monitor-vc142-mt-x64-1_76.lib
libboost_program_options-vc142-mt-x64-1_76.lib
libboost_python38-vc142-mt-x64-1_76.lib
libboost_random-vc142-mt-x64-1_76.lib
libboost_regex-vc142-mt-x64-1_76.lib
libboost_serialization-vc142-mt-x64-1_76.lib
libboost_stacktrace_noop-vc142-mt-x64-1_76.lib
libboost_stacktrace_windbg-vc142-mt-x64-1_76.lib
libboost_stacktrace_windbg_cached-vc142-mt-x64-1_76.lib
libboost_system-vc142-mt-x64-1_76.lib
libboost_test_exec_monitor-vc142-mt-x64-1_76.lib
libboost_thread-vc142-mt-x64-1_76.lib
libboost_timer-vc142-mt-x64-1_76.lib
libboost_type_erasure-vc142-mt-x64-1_76.lib
libboost_unit_test_framework-vc142-mt-x64-1_76.lib
libboost_wave-vc142-mt-x64-1_76.lib
libboost_wserialization-vc142-mt-x64-1_76.lib
libboost_zlib-vc142-mt-x64-1_76.lib
flann.lib
flann_cpp.lib
flann_cpp_s.lib
flann_s.lib
qhullcpp.lib
qhullstatic.lib
qhullstatic_r.lib
qhull_r.lib
vtkChartsCore-9.0.lib
vtkCommonColor-9.0.lib
vtkCommonComputationalGeometry-9.0.lib
vtkCommonCore-9.0.lib
vtkCommonDataModel-9.0.lib
vtkCommonExecutionModel-9.0.lib
vtkCommonMath-9.0.lib
vtkCommonMisc-9.0.lib
vtkCommonSystem-9.0.lib
vtkCommonTransforms-9.0.lib
vtkDICOMParser-9.0.lib
vtkDomainsChemistry-9.0.lib
vtkDomainsChemistryOpenGL2-9.0.lib
vtkdoubleconversion-9.0.lib
vtkexodusII-9.0.lib
vtkexpat-9.0.lib
vtkFiltersAMR-9.0.lib
vtkFiltersCore-9.0.lib
vtkFiltersExtraction-9.0.lib
vtkFiltersFlowPaths-9.0.lib
vtkFiltersGeneral-9.0.lib
vtkFiltersGeneric-9.0.lib
vtkFiltersGeometry-9.0.lib
vtkFiltersHybrid-9.0.lib
vtkFiltersHyperTree-9.0.lib
vtkFiltersImaging-9.0.lib
vtkFiltersModeling-9.0.lib
vtkFiltersParallel-9.0.lib
vtkFiltersParallelImaging-9.0.lib
vtkFiltersPoints-9.0.lib
vtkFiltersProgrammable-9.0.lib
vtkFiltersSelection-9.0.lib
vtkFiltersSMP-9.0.lib
vtkFiltersSources-9.0.lib
vtkFiltersStatistics-9.0.lib
vtkFiltersTexture-9.0.lib
vtkFiltersTopology-9.0.lib
vtkFiltersVerdict-9.0.lib
vtkfreetype-9.0.lib
vtkGeovisCore-9.0.lib
vtkgl2ps-9.0.lib
vtkglew-9.0.lib
vtkhdf5-9.0.lib
vtkhdf5_hl-9.0.lib
vtkImagingColor-9.0.lib
vtkImagingCore-9.0.lib
vtkImagingFourier-9.0.lib
vtkImagingGeneral-9.0.lib
vtkImagingHybrid-9.0.lib
vtkImagingMath-9.0.lib
vtkImagingMorphological-9.0.lib
vtkImagingSources-9.0.lib
vtkImagingStatistics-9.0.lib
vtkImagingStencil-9.0.lib
vtkInfovisCore-9.0.lib
vtkInfovisLayout-9.0.lib
vtkInteractionImage-9.0.lib
vtkInteractionStyle-9.0.lib
vtkInteractionWidgets-9.0.lib
vtkIOAMR-9.0.lib
vtkIOAsynchronous-9.0.lib
vtkIOCityGML-9.0.lib
vtkIOCore-9.0.lib
vtkIOEnSight-9.0.lib
vtkIOExodus-9.0.lib
vtkIOExport-9.0.lib
vtkIOExportGL2PS-9.0.lib
vtkIOExportPDF-9.0.lib
vtkIOGeometry-9.0.lib
vtkIOImage-9.0.lib
vtkIOImport-9.0.lib
vtkIOInfovis-9.0.lib
vtkIOLegacy-9.0.lib
vtkIOLSDyna-9.0.lib
vtkIOMINC-9.0.lib
vtkIOMotionFX-9.0.lib
vtkIOMovie-9.0.lib
vtkIONetCDF-9.0.lib
vtkIOOggTheora-9.0.lib
vtkIOParallel-9.0.lib
vtkIOParallelXML-9.0.lib
vtkIOPLY-9.0.lib
vtkIOSegY-9.0.lib
vtkIOSQL-9.0.lib
vtkIOTecplotTable-9.0.lib
vtkIOVeraOut-9.0.lib
vtkIOVideo-9.0.lib
vtkIOXML-9.0.lib
vtkIOXMLParser-9.0.lib
vtkjpeg-9.0.lib
vtkjsoncpp-9.0.lib
vtklibharu-9.0.lib
vtklibproj-9.0.lib
vtklibxml2-9.0.lib
vtkloguru-9.0.lib
vtklz4-9.0.lib
vtklzma-9.0.lib
vtkmetaio-9.0.lib
vtknetcdf-9.0.lib
vtkogg-9.0.lib
vtkParallelCore-9.0.lib
vtkParallelDIY-9.0.lib
vtkpng-9.0.lib
vtkpugixml-9.0.lib
vtkRenderingAnnotation-9.0.lib
vtkRenderingContext2D-9.0.lib
vtkRenderingContextOpenGL2-9.0.lib
vtkRenderingCore-9.0.lib
vtkRenderingFreeType-9.0.lib
vtkRenderingGL2PSOpenGL2-9.0.lib
vtkRenderingImage-9.0.lib
vtkRenderingLabel-9.0.lib
vtkRenderingLOD-9.0.lib
vtkRenderingOpenGL2-9.0.lib
vtkRenderingSceneGraph-9.0.lib
vtkRenderingUI-9.0.lib
vtkRenderingVolume-9.0.lib
vtkRenderingVolumeOpenGL2-9.0.lib
vtkRenderingVtkJS-9.0.lib
vtksqlite-9.0.lib
vtksys-9.0.lib
vtkTestingRendering-9.0.lib
vtktheora-9.0.lib
vtktiff-9.0.lib
vtkverdict-9.0.lib
vtkViewsContext2D-9.0.lib
vtkViewsCore-9.0.lib
vtkViewsInfovis-9.0.lib
vtkWrappingTools-9.0.lib
vtkzlib-9.0.lib
我在网上下载了一个兔子的点云文件:rabbit.pcd文件,在VS2019中用代码进行打开如图25所示:
图 25
然后用简单的点云3D重构算法对该兔子的点云进行处理后得到的图像为如图26所示:
图 26
至此测试完成。
在这次配置环境过程中我学到了如何配置电脑环境,如何配置软件环境来使用相应软件没有自带的库,接触了读取.pcd文件的算法,以及简单的点云3D重构算法,由图27可以看出,该重构效果还是有待改进,在红框框住地方仍有大片出现断层的现象。
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