Embedding information in three-dimensional geometric model

A method for embedding information in a three-dimensional geometric model, comprising the steps of:

• a) preparing a three-dimensional geometric model wherein said three-dimensional geometric model comprises a plurality of primitives,
• b) embedding said information in said three-dimensional geometric model by changing the geometric parameter of said three-dimensional geometric model wherein said means of embedding information includes the steps of;
• i) searching a start primitive for ordering primitives,
• ii) ordering sets of primitives in the plurality of primitives, and
• iii) selecting a primitive from one of the sets in accordance with said order and changing a geometric parameter of the selected primitive correspondingly to said information.

A system for disembedding information embedded in a three-dimensional geometric model, comprising:

• a) means for preparing a three-dimensional geometric model in which said information is embedded;
• and
• b) means for disembedding said information from said three-dimensional geometric model by detection a geometric parameter of said three-dimensional geometric model wherein the information disembedding means includes;
• i) means for searching a start primitive for ordering primitive,
• ii) means for ordering sets of primitives in the plurality, and
• iii) means for selecting primitives in accordance with said order and disembedding said information from the geometric parameter of said selective primitives.

A method for disembedding information embedded in a three-dimensional geometric model, comprising the steps of:

• a) preparing a three-dimensional geometric model in which said information is embedded wherein said three-dimensional geometric model comprises a plurality of primitives;
• and
• b) disembedding said information from said three-dimensional geometric model by detecting a geometric parameter of said three-dimensional geometric models wherein disembedding said information includes the steps of:
• i) searching a start primitive for ordering primitives,
• ordering sets of primitives in the plurality, and
• iii) selecting a primitive in a set in accordance with said order and disembedding said information from a geometric parameter of the selected primitive.

A computer program on a computer usable medium for making a computer embed information in a three-dimensional geometric model, wherein said program has;

• a) model software for preparing a three-dimensional geometric model wherein said three-dimensional geometric model includes a plurality of primitives, and
• b) embedding software for embedding said information in said three-dimensional geometric model by changing a geometric parameter of said three-dimensional geometric model wherein said embedding software includes:
• i) software for searching for a start primitive for ordering primitives,
• ii) software for ordering sets of primitives in the plurality of primitives,
• iii) software for selecting a primitive from one of the sets in accordance with said order and changing a geometric parameter of said primitive corresponding to said information.

A computer program on a computer usable medium for making a computer disembed information embedded in a three-dimensional geometric model, wherein said program has;

• 1) model software for preparing a three-dimensional geometric model in which said information is embedded in ordered sets of primitives comprising the geometric model, and
• 2) disembedding software for disembedding said information from said three-dimensional geometric model by detecting a geometric parameter of said three-dimensional geometric model wherein the disembedding software includes software for,
• i) searching for a start primitive, and
• ii) locating primitives in sets in accordance with the geometric parameter of said selected primitives.