... by taking uncertainty into account explicitly.4.3.1.3 Range histogram featuresA histogram is a simple way to combine characteristic elements of an image. An angle his-togram, as presented in ... refer to [91, 131 ].For example, one segmentation technique is the merging, or bottom-up technique inwhich smaller features are identified and then merged together based on decision criteria to extract ... identifying a specific room in an office buildingapplies to the entire room, but has a location that is spatially limited to the one particularroom.In mobile robotics, features play an especially important...