Patent ID: 6919889
Filing Date: 2005-07-19
Classification: G06T

Abstract:
1. A method of representing surface radiance of an object based on acquired images of the object taken from a view point with lighting provided from a lighting point, the method comprising: accessing data representing the acquired images; calculating, from the data representing the acquired images, radiance functions representing the surface radiance of the object, wherein each radiance function has a first dimensionality; partitioning the radiance functions based on a mesh topology to create a number of a vertex radiance functions; reparameterizing each vertex radiance function to a local coordinate system based on the view point and the lighting point to produce reparameterized vertex radiance functions; and decomposing the reparameterized vertex radiance functions into a first representation having a second dimensionality and a second representation having a third dimensionality, wherein each of the second and third dimensionalities has fewer dimensions than the first dimensionality.