Raw laser scans contain all points returned from the scanner without processing. Many applications, however, are better served by filtered scans which remove unnecessary points (such as unreliable laser hits or hits on the robot itself), or pre-process the scans in some way (such as by median filtering). This tutorial will teach you how to apply pre-existing filters to laser scans.

Raw laser scans contain all points returned from the scanner without processing. Many applications, however, are better served by filtered scans which remove unnecessary points (such as unreliable laser hits or hits on the robot itself), or pre-process the scans in some way (such as by median filtering). This tutorial will teach you how to apply pre-existing filters to laser scans.