Pre-computed shadow fields are described. In one aspect, shadow fields for multiple entities are pre-computed. The shadow fields are pre-computed independent of scene configuration. The multiple entities include at least one occluding object and at least one light source. A pre-computed shadow field for a light source indicates radiance from the light source. A pre-computed shadow field for an occluding object indicates occlusion of radiance from the at least one light source.

 
Web www.patentalert.com

< Transactional storage and workflow routing for medical image objects

> Shading correction method and system and digital camera

> Method and system for automatically identifying regions of trabecular bone tissue and cortical bone tissue of a target bone from a digital radiograph image

~ 00524