Method of embedding data in a virtual object

A computer-implemented method of extracting embedded data from a virtual object, the virtual object being generated from a mesh of polygons, the polygons comprising edges meeting at vertices, each of the vertices being represented by initial coordinates in 3D space, the computer-implemented method comprising:

• receiving adjusted coordinates of at least some of the vertices of the virtual object;
• comparing the adjusted coordinates to a known baseline for the virtual object and using the comparison to determine spatial adjustments applied to the adjusted coordinates,
• extracting the embedded data from the spatial adjustments;
• and
• decoding the embedded data using an error and deletion correction code.

An apparatus for embedding data in a virtual object, the virtual object being generated from a mesh of polygons, the polygons comprising edges meeting at vertices, each of the vertices being represented by initial coordinates in 3D space, the apparatus comprising:

• at least one memory;
• and
• at least one processor coupled to the at least one memory and configured to:
• receive the initial coordinates of the vertices of the virtual object;
• receive the data to be embedded in the virtual object;
• determine a respective set of spatial adjustments for the initial coordinates of a plurality of the vertices, the set of spatial adjustments corresponding to the data being embedded;
• adjust the initial coordinates of the plurality of the vertices by the respective set of spatial adjustments, to generate adjusted coordinates of the vertices;
• and
• encode the data using an error and deletion correction code.