US 6,983,082 B2
Reality-based light environment for digital imaging in motion pictures
Haarm-Pieter Duiker, San Francisco, Calif. (US)
Assigned to Warner Bros. Entertainment Inc., Burbank, Calif. (US)
Filed on Nov. 17, 2003, as Appl. No. 10/715,775.
Claims priority of provisional application 60/426560, filed on Nov. 15, 2002.
Prior Publication US 2004/0150641 A1, Aug. 05, 2004
Int. Cl. G06K 9/36 (2006.01); G09G 5/00 (2006.01)
U.S. Cl. 382—284 28 Claims
OG exemplary drawing
 
1. A method for defining lighting for rendering a digital object, the method comprising:
reading image datasets each corresponding to a substantially different location or a substantially different lighting condition within a limited physical space, each image dataset comprising a plurality of correlated images captured at different exposures;
defining a plurality of panoramic maps, each panoramic map comprising a map of color and intensity information derived from images in a corresponding one of the image sets;
modeling a dynamic lighting model from the plurality of panoramic maps, the dynamic lighting model defining lighting for digital rendering as a function of virtual coordinates of a modeled space, wherein the modeled space corresponds to the limited physical space, and the virtual coordinates are selected from the group consisting of space coordinates, time coordinates, and any combination of space and time coordinates; and
rendering at least a single frame using the dynamic lighting model.