Patent ID: 6215503
Filing Date: 2001-04-10
Classification: G06T

Abstract:
A method for generating an image given a list of objects that form an occlusion cycle without binary occlusions and image layers representing renderings of the objects, the method comprising:selecting one of the objects in the list of objects that form an occlusion cycle;finding a first subset of the objects that occlude the selected object and a second subset formed by removing the selected object from the list of objects that form an occlusion cycle;generating a first image by using an atop image operation to combine the image layers of the one or more objects in the first subset of the objects that occlude the selected object with the image layer of the selected object; andcombining the first image with the image layers of the objects in the second subset formed by removing the selected object from the list using an over image operation to compute an image representing the objects in the occlusion cycle.