Real time digital twin system and method

A method of computing a digital twin, the method comprising:

• capturing, at a plurality of capture devices (108), image frames representing the subject at respective scanning times;
• establishing a root in at least one of the image frames, and estimating pose information for each image frame, relative to the root;
• transmitting the image frames from the plurality of capture devices (108) to a digital twin engine (104);
• aligning the image frames with existing frames in the digital twin based on feature matching and the pose estimation;
• building an intermediate digital twin, at the digital twin engine (104), based on the alignment of the image frames;
• and
• aligning image frames, at the digital twin engine (104), according to the respective scanning times to build the final digital twin.