US Patent 11335063 Multiple maps for 3D object scanning and reconstruction

Described herein are methods and systems for generating multiple maps during object scanning for 3D object reconstruction. A sensor device captures RGB images and depth maps of objects in a scene. A computing device receives the RGB images and the depth maps from the sensor device. The computing device creates a first map using at least a portion of the depth maps, a second map using at least a portion of the depth maps, and a third map using at least a portion of the depth maps. The computing device finds key point matches among the first map, the second map, and the third map. The computing device performs bundle adjustment on the first map, the second map, and the third map using the matched key points to generate a final map. The computing device generates a 3D mesh of the object using the final map.