  We present a Virtual Reality (VR) application for labeling and handling point
cloud data sets. A series of room-scale point clouds are recorded as a video
sequence using a Microsoft Kinect. The data can be played and paused, and
frames can be skipped just like in a video player. The user can walk around and
inspect the data while it is playing or paused. Using the tracked hand-held
controller, the user can select and label individual parts of the point cloud.
The points are highlighted with a color when they are labeled. With a tracking
algorithm, the labeled points can be tracked from frame to frame to ease the
labeling process. Our sample data is an RGB point cloud recording of two people
juggling with pins. Here, the user can select and label, for example, the
juggler pins as shown in Figure 1. Each juggler pin is labeled with various
colors to indicate di erent labels.
