IGI: Technical Explanation
§ Estimates the incident
radiances of the surfaces in
a scene.
§ Radiance estimate used to
estimate the reflectance
properties of the surfaces in
the scene, by an iterative
procedure
§ Reflectance property
estimates can then be used
re-estimate the incident
radiances
§ Input to the algorithm:
§ geometric model of the
scene
§ a set of radiance maps
taken under known
direct illumination
§ a partitioning of the
scene into areas of
similar non-diffuse
reflectance properties
used to estimate the
reflectance properties of
the surfaces in the
scene, by an iterative
procedure