Method and apparatus for providing virtual contents in virtual space based on common coordinate system

A device comprising:

• a marker detection unit that detects a base marker, which is a marker for identifying a fixed point of an actual operation space, and a target marker, which is a marker for identifying an actual manipulation object, from initial image data indicating an initial state of the actual manipulation object in the actual operation space;
• a matrix calculation unit which calculates an initial model matrix of the target marker expressing an initial position and orientation of the target marker, and a model matrix of the base marker expressing a position and an orientation of the detected base marker in a virtual operation space having a common coordinate system which uses the detected base marker as a reference, and calculates a current model matrix of the target marker expressing a current position and orientation of the target marker by using the calculated model matrix of the base marker;
• and
• a virtual space processing unit that generates a virtual operation object within the virtual operation space, the virtual operation object comprising a three-dimensional model shape of the actual operation object, and mirrors changes in a position and an orientation of the actual operation object onto the virtual operation object;
• wherein the virtual space processing unit is configured to mirror changes in the position and the orientation of the actual operation object onto the virtual operation object by:
• detecting, via a camera module of a field device in the actual operation space, a difference between the current model matrix of the target marker and the initial model matrix of the target marker;
• and
• updating at least one of a position and an orientation of the virtual operation object according to the difference.