Methods and systems for labeling lidar point cloud data

A system for processing point cloud data, the system comprising:

• a display;
• a processor;
• and
• a non-transitory computer-readable medium comprising programming instructions that when executed by the processor cause the processor to:
• receive a 3D image comprising point cloud data;
• display, on the display, a 2D image associated with the 3D image;
• generate a 2D bounding box that envelops an object of interest in the 2D image;
• generate, by projecting a plurality of points in the 3D image on the 2D image in a first direction, a first projected image frame comprising a first projected plurality of points;
• display, on the display, an image frame that comprises the 2D image and the 2D bounding box superimposed by the first projected image frame;
• receive a first user input comprising an identification of a set of points in the first projected plurality of points that correspond to the object of interest;
• identify a label for the object of interest;
• and
• store, in a data store, the set of points that correspond to the object of interest in association with the label.