Progressive compression of clustered multi-resolution polygonal

Details Progressive compression of clustered multi-resolution polygonal Progressive compression of clustered multi-resolution polygonal

1997-11-21

1999-12-28

Homere, Jean R.

Data processing: database and file management or data structures

Database design

Data structure types

345420, 345423, 345428, G06F 1500

Patent

active

060094354

ABSTRACT:
A computer system progressively stores and transmits compressed clustered multi-resolution polygonal models. The computer uses a data structure that represents a clustered multi-resolution polygonal model in n-dimensional space. The data structure has a connectivity record which encodes the connectivity information of the highest level of detail. The data structure also has a clustering record which encodes how the vertices of each level of detal are clustered to obtain the vertices of the next lower level of detail. The clustering record is organized in decreasing order of level of detail. The data structure also has a data record with information describing the vertex positions of the levels of detail, and optionally the corresponding properties. The fields of the data record are organized in increasing order of level of detail. The system also includes ways for creating this data structure from a clustered multi-resolution polygonal model, transmitting this information between computers, and compressing and decompressing this transmitted information.

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