Systems and methods for processing images of objects using global lighting estimates

A method of determining an intrinsic colour component of one or more objects for use in rendering the one or more objects, the method comprising:

• receiving one or more input images each representing a view of the one or more objects, wherein values of each of the one or more input images are separable into intrinsic colour estimates and corresponding shading estimates;
• determining a set of surface normals for the one or more objects of said one or more input images, said determined set of surface normals being for use in rendering the one or more objects;
• in accordance with the values of the one or more input images and the determined set of surface normals, determining a global lighting estimate which provides consistent corresponding intrinsic colour estimates for a plurality of regions of the one or more objects from the one or more input images;
• and
• in accordance with the values of the one or more input images and the determined global lighting estimate, determining said intrinsic colour component for use in rendering the one or more objects.

A non-transitory computer readable storage medium having stored thereon processor executable instructions that when executed cause at least one processor to determine an intrinsic colour component of one or more objects for use in rendering the one or more objects, the determining an intrinsic colour component comprising:

• receiving one or more input images each representing a view of the one or more objects, wherein values of each of the one or more input images are separable into intrinsic colour estimates and corresponding shading estimates;
• determining a set of surface normals for the one or more objects of said one or more input images, said determined set of surface normals being for use in rendering the one or more objects;
• in accordance with the values of the one or more input images and the determined set of surface normals, determining a global lighting estimate which provides consistent corresponding intrinsic colour estimates for a plurality of regions of the one or more objects from the one or more input images;
• and
• in accordance with the values of the one or more input images and the determined global lighting estimate, determining said intrinsic colour component for use in rendering the one or more objects.