Methods and apparatus for volume rendering

Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension

Reexamination Certificate

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C345S419000, C345S420000

Reexamination Certificate

active

07990378

ABSTRACT:
A method for performing a volume rendering of an image uses a computer having a processor, memory, and a display. The method includes globally segmenting image data that represents an image to thereby locate boundaries in the image, determining regional opacity functions using the image data in a vicinity of the boundaries, and volume rendering the image data utilizing the regional opacity functions to display an image. The method provides a presentation of improved images of structures. These improved images are obtained using a regional optimization of the opacity function such that the perceived object boundary coincides more closely with a segmented boundary.

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