Systems and methods for generating a refined 3d model using radar and optical camera data

A system, comprising:

• a processor;
• and
• a non-transitory computer-readable storage medium comprising programming instructions that are configured to cause the processor to implement a method for generating a refined 3D model, wherein the programming instructions comprise instructions to:
• construct a subject point cloud using at least optical camera data acquired by scanning a subject;
• using radar depth data to modify the subject point cloud to represent an occluded portion of the subject's real surface;
• generate a plurality of reference point clouds using (1) a first 3D model of a plurality of 3D models that represents an object belonging to a general object class or category to which the subject belongs and (2) a plurality of different setting vectors;
• identify a first reference point cloud from the plurality of reference point clouds that is a best fit for the subject point cloud;
• obtain a setting vector associated with the first reference point cloud;
• and
• transform the first 3D model into the refined 3D model using the setting vector.