/**
\mainpage
This package is designed to provide helper functions/classes for working with laser scans.  It provides library functionality only.  


\section projection Laser Scan Projection to Point Cloud
laser_scan::LaserProjection provides a simple method to project laser scans into point clouds while discarding out-of-range measurements.  


\section filters Laser Scan Filters 

There are a number of filters that this class provides. 
There is also a factory class to provide easy creation and chaining of laser scan filter
as a input to any process.
\todo implement and document (they're currently basically standalone nodes)

\subsection median Median Filter
laser_scan::LaserMedianFilter applies a median filter to scans both in range and intensity.  

\subsection mean Mean Filter
\todo Document

\subsection shadows Scan Shadows Filter
\todo document

\subsection intensity Intensity Filter
\todo document

*/