Coding and decoding three-dimensional data

Details Coding and decoding three-dimensional data Coding and decoding three-dimensional data

2000-12-13

2003-05-06

Zimmerman, Mark (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics processing

Animation

C345S474000, C345S475000

Reexamination Certificate

active

06559848

ABSTRACT:

TECHNICAL FIELD
This invention relates to coding and decoding three-dimensional (3D) data, such as quaternions.
BACKGROUND
A 3D model includes a virtual skeleton, comprised of bones arranged in a hierarchical tree structure. Surrounding the bones are polygons, such as triangles, which represent the skin of the 3D model. Movement of the polygons is tied to the movement of the bones so that the 3D model approximates real-life movement during animation. To achieve this type of realism, a large amount of data is required to define the animation of the 3D model. Transporting such data over limited-bandwidth media, such as computer networks, can be problematic. Coding techniques have therefore been developed for reducing the amount of 3D data to be transported.


REFERENCES:
patent: 4600919 (1986-07-01), Stern
patent: 6057859 (2000-05-01), Handelman et al.
patent: 6337880 (2002-01-01), Cornog et al.
patent: 6388670 (2002-05-01), Naka et al.
Guenter et al., Motion Comprensated of Computer Animation Frames, 1993, pp. 1-8.

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