Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Reexamination Certificate
2006-04-04
2006-04-04
Nguyen, Phu K. (Department: 2673)
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
C382S128000, C358S001100
Reexamination Certificate
active
07023433
ABSTRACT:
In a computer-implemented method for constructing a three-dimensional model of an object volume, cubic voxels cooperatively define a three-dimensional solid of the three-dimensional model of the object volume. Each voxel has a plurality of voxel faces, and each voxel face is parallel to one of three axes of a rectangular coordinate system. Each voxel has a data structure that includes an object flag portion for describing the corresponding three-dimensional solid, a face flag portion for indicating which ones of the voxel faces serve as a boundary face of the corresponding three-dimensional solid, and a set of distance-levels that represent sample points of the voxel on the three axes of the rectangular coordinate system. The topology and geometry of a boundary of the three-dimensional solid are represented by the face flag portions and the distance-levels of the voxels that are positioned at the boundary.
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Hsieh Ming-Shium
Tsai Ming-Dar
Chung Yuan Christian University
Gallagher & Lathrop
Lathrop, Esq David N.
Nguyen Phu K.
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