Data compression for animated three dimensional objects

Details Data compression for animated three dimensional objects Data compression for animated three dimensional objects

1997-02-13

1998-10-06

Vo, Cliff N.

Computer graphics processing and selective visual display system

Computer graphics processing

Animation

G06T 1300

Patent

active

058184635

ABSTRACT:
Data which represents an animation sequence of a three dimensional object at a series of discrete time frames is compressed by identifying characteristic features of the object; generating a quadrangular mesh representation of the object, whereby the object is mathematically defined by dividing it into one or more regions and hierarchically representing each region by a mesh, each mesh including three coordinate matrices which define the positions of nodes within the mesh; selecting from the mesh representation of the features a set of animation parameters which are capable of specifying changes in the mesh corresponding to the animation of the object; compressing each region mesh by applying pyramid progressive coding to the coordinate matrices for the mesh; storing the initial values for the animation parameters at the beginning of the animation sequence; and, at each time frame after the beginning of the animation sequence, estimating the current values of the parameters and compressing each parameter by estimating the change in the value of the parameter by subtracting its stored value for the previous time frame from its current value, quantizing the estimated difference, applying entropy coding to the quantized difference and updating the stored value with the decoded value.

REFERENCES:
patent: 5655067 (1997-08-01), Takahashi et al.
patent: 5687097 (1997-11-01), Mizusawa et al.
patent: 5692212 (1997-11-01), Roach
patent: 5739827 (1998-04-01), Nagano et al.
patent: 5754190 (1998-05-01), Dutton et al.

Affiliated with

Also associated with

Rating

Data compression for animated three dimensional objects does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Data compression for animated three dimensional objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data compression for animated three dimensional objects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-83950