Method and apparatus for compressed data storage and retrieval

Details Method and apparatus for compressed data storage and retrieval Method and apparatus for compressed data storage and retrieval

2007-01-09

2007-01-09

Nguyen, Kimbinh T. (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S420000, C345S427000, C382S232000

Reexamination Certificate

active

10621111

ABSTRACT:
Method and apparatus are provided for compressing and decompressing data representing a 3D unit vector. X, Y, and Z components are derived from the vector data and a determination made as to the octant in which that vector falls from a number of possible octant pairs. The vector is then scaled with a scaling factor and compressed data values are derived from the octant pair data and scaled vector data.

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Jeong-Hwan Ahn et al: “An efficient geometry compression method for 3D objects in the spherical coordinate system”, Image Processing, Oct. 24, 1999 (Abstract 1 page).

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