Quality Map

The quality map visualizes the quality of the mapping: it shows the trajectory estimate and capture locations and indicates the density of the Point cloud by showing densely scanned areas in different colors.

• Dark blue indicates floor coverage, with the blue color becoming brighter as more of the ceiling area is scanned.

• Objects are also shown. The visibility of an object in the quality map will depend on the amount of point cloud information scanned for that object as well as the height of the object along the z-axis. The greater the height of an object and the more point cloud information is available, the whiter that object will appear.

Each Dataset contains one small and one big version of the quality map. The big version has a higher resolution and, if processed with Mapping software version 1.6.5 or higher, includes additional information about the time elapsed since the start of the dataset, as well as the capture location index.

If the quality map contains bright stripes, patterns, or bright spots, it means that some parts of your environment were 'shadowed', so that the laser scanners could not ‘see’ it. This may happen if furniture is in the way, or if your room has a ceiling with a complex surface structure. Another possible cause is mapping outdoors: Here, no ceiling is present, meaning the point cloud is 'incomplete', and thus the quality map will be plain white. This does not mean that the point cloud does not exist or that its quality is bad.