pcl.PointCloud	Represents a class of points, supporting the PointXYZ type.
pcl.Segmentation	Segmentation class for Sample Consensus methods and models
pcl.SegmentationNormal	Segmentation class for Sample Consensus methods and models that require the
pcl.StatisticalOutlierRemovalFilter	Filter class uses point neighborhood statistics to filter outlier data.
pcl.MovingLeastSquares	Smoothing class which is an implementation of the MLS (Moving Least Squares)
pcl.PassThroughFilter	Passes points in a cloud based on constraints for one particular field of the point type
pcl.VoxelGridFilter	Assembles a local 3D grid over a given PointCloud, and downsamples + filters the data