US 9,811,871 B2
System and method of watermarking
Stephen Andrew Humphries, London (GB)
Assigned to Sony Interactive Entertainment Europe Limited, (GB)
Filed by Sony Interactive Entertainment Europe Limited, London (GB)
Filed on Oct. 12, 2015, as Appl. No. 14/880,606.
Claims priority of application No. 1418712.4 (GB), filed on Oct. 21, 2014.
Prior Publication US 2016/0110838 A1, Apr. 21, 2016
Int. Cl. G06K 9/00 (2006.01); G06T 1/00 (2006.01)
CPC G06T 1/005 (2013.01) [G06T 1/0028 (2013.01); G06T 2201/0051 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method of watermarking video images of a particular instance of a virtual environment, comprising the steps of:
selecting, by at least one processor, a plurality of virtual objects for inclusion within the virtual environment;
respectively altering, by the at least one processor, a physical property of the selected virtual objects from a reference value to a respective different value,
wherein the respective different value is selected responsive to a respective identification value of identification data associated with that particular instance of the virtual environment, and
wherein the physical property has a visible effect on an appearance of the virtual objects; and
rendering for display, by the at least one processor, the virtual environment comprising the altered virtual objects;
in which the physical property is type of virtual object, and the type of virtual object is altered by one selected from the list consisting of:
i. selecting a respective type allocated to a corresponding identification value; and
ii. selecting a type from a respective set of types allocated to a corresponding identification value.