Detail data pertaining to the shape of an object surface and related methods and systems

A method of forming detail data corresponding to a first vertex of a polygonal mesh representation of a first object surface, the mesh representation having a limit surface, and the first vertex converging to a limit point on the limit surface, comprising the following steps:

• forming difference data corresponding to the first vertex, the difference data corresponding to the first vertex formed from the difference between a corresponding point on a second object surface and the limit point of the vertex on the limit surface;
• assigning a prescribed weight to the vertex;
• weighting the difference data for the vertex with the prescribed weight assigned to that vertex;
• and
• deriving the detail data for the first vertex from the weighted difference data.

A method of forming detail data corresponding to a first vertex of a polygonal mesh representation of a first object surface, the mesh representation having a limit surface, comprising the following steps:

• forming difference data corresponding to one or more second vertices of the mesh representation, each converging to a limit point-on the limit surface, the difference data corresponding to a vertex formed from the difference between a corresponding point on a second object surface and the limit point of the vertex on the limit surface;
• assigning prescribed weights to the one or more second vertices;
• weighting the difference data for a second vertex with the prescribed weight assigned to that vertex;
• and
• deriving the detail data for the first vertex from the weighted difference data.

A method of forming detail data corresponding to a first vertex of a polygonal mesh representation of an object surface, the mesh representation having a limit surface, and the first vertex having a limit point on the limit surface, comprising the following steps:

• assigning prescribed weights to the one or more second vertices of the mesh representation;
• weighting detail data for a second vertex with the prescribed weight assigned to that vertex, the detail data for a vertex relating to the shape of the limit surface at the limit point for the vertex;
• and
• deriving the detail data for the first vertex from the weighted difference data.

A method of forming detail data corresponding to a first vertex of a polygonal mesh representation of an object surface, comprising the following steps:

• a step for forming difference data corresponding to one or more second vertices of the mesh representation;
• a step for assigning prescribed weights to the one or more second vertices;
• a step for weighting the difference data for a vertex with the prescribed weight assigned to that vertex;
• and
• a step for deriving the detail data for the first vertex from the weighted difference data.

A method of forming detail data corresponding to a first vertex of a polygonal mesh representation of an object surface comprising the following steps:

• a step for assigning prescribed weights to one or more second vertices;
• a step for weighting detail data for a vertex with the prescribed weight assigned to that vertex;
• and
• a step for deriving the detail data for the first vertex from the weighted detail data.