by a camera and its corresponding point-cloud map generated by a radar, a LiDAR, or a
heterogeneous sensor fusion is provided to be used for an HD map update. The method
includes steps of: a computing device instructing an initial operation layer to integrate the
image and its corresponding original point-cloud map, to generate a first fused feature map
and a first fused point-cloud map; instructing a transformation layer to apply a first …