Relightable texture for use in rendering an image

摘要

Relightable free-viewpoint rendering allows a novel view of a scene to be rendered and relit based on multiple views of the scene from multiple camera viewpoints. Image values from the multiple camera viewpoints can be separated into diffuse image components and specular image components, such that an intrinsic colour component of a relightable texture can be determined for a specular scene, by using the separated diffuse image components. The diffuse component is determined at each of a plurality of sample positions of the texture on the basis of the minimum of the image values at the sample position from a set of a plurality of images.