Augmented reality processing device and method

An augmented reality processing device, comprising:

• an image capturing circuit, configured to capture a first environment image and a second environment image;
• and
• a processor, connected to the image capturing circuit, and execute operations of:
• generating an original point cloud image according to the first environment image and a physical object in the first environment image, wherein the original point cloud image comprises a physical object point cloud set and a physical scene point cloud set which correspond to the physical object, wherein a virtual object is superimposed with the physical object according to the physical object point cloud set;
• generating a first physical object feature set corresponding to the physical object point cloud set according to the first environment image and the physical object point cloud set;
• generating an expanded point cloud image corresponding to the physical object from the second environment image according to the first physical object feature set, and generating a superimposed point cloud image according to the expanded point cloud image and the original point cloud image;
• and
• generating a transformation matrix according to the original point cloud image and the expanded point cloud image, and superimposing the virtual object to the second environment image according to the superimposed point cloud image and the transformation matrix.