Method and system for generating and/or repairing a surface model of a geometric structure

A system for generating a surface model of an anatomic structure, the system comprising:

• a processing apparatus configured to:
• receive, from a first sensor and a second sensor of a catheter, a plurality of location data points corresponding to respective locations on the surface of said anatomic structure, said plurality of location data points forming a point cloud;
• generate a first surface model of said anatomic structure based on said plurality of location data points;
• add a plurality of additional data points to said point cloud by adding the plurality of additional points to at least one of;
• an area between a first of said plurality of location data points and a second of said plurality of location data points;
• an area beyond a first of said plurality of location data points;
• and
• an area beyond a second of said plurality of location data points;
• and
• update said first surface model by constructing a second surface model based on said plurality of additional data points;
• wherein said first surface model comprises a plurality of facets each having at least one edge, said processing apparatus further configured to:
• evaluate said at least one edge of one of said facets to determine if said edge has a length that exceeds a predetermined threshold value;
• divide said edge into a plurality of segments, responsive to said evaluation, if said edge has a length that exceeds said predetermined threshold value, each of said segments having a length that is equal to or less than said predetermined threshold value;
• and
• add at least one refined data point on said edge to define said plurality of segments;
• and
• display the surface model of the anatomic structure by causing at least one of a portion of the first surface model and a portion of second surface model to be displayed for a user.

A method of repairing a surface model of an anatomic structure, the method comprising:

• acquiring said surface model of said anatomic structure, said model based on a plurality of location data points corresponding to respective locations on the surface of said anatomic structure, said location data points collectively forming a point cloud, wherein the plurality of location data points are received from a first sensor and a second sensor of a catheter;
• adding a plurality of additional data points to said point cloud by adding the plurality of additional points to at least one of;
• an area between a first of said plurality of location data points and a second of said plurality of location data points;
• an area beyond a first of said plurality of location data points;
• and
• an area beyond a second of said plurality of location data points;
• and
• updating said surface model by constructing a second surface model based on said plurality of additional data points;
• wherein said first surface model comprises a plurality of triangularly-shaped facets each defined by a first, a second, and a third data point and a first, a second, and a third edge, said method further comprising:
• reflecting at least one of said first, second, and third data points of one of said facets across the one of said first, second and third edges of said facet that is opposite said data point being reflected;
• and
• placing a new data point at the location where said reflected data point is disposed;
• and
• displaying the surface model of the anatomic structure by causing at least a portion of said first surface model to be displayed for a user.

A method for generating a surface model of a geometric structure, the method comprising:

• acquiring a plurality of location data points corresponding to respective locations on the surface of said geometric structure, said plurality of location data points forming a point cloud;
• generating a first surface model of said geometric structure based on said plurality of location data points;
• adding a plurality of additional data points to said point cloud wherein each of said additional data points is disposed a distance from at least one of said plurality of location data points that is equal to a radius of a catheter used to collect said plurality of location data points;
• updating said first surface model by constructing a second surface model based on said plurality of additional data points;
• and
• causing at least a portion of said first surface model, at least a portion of said second surface model, or both a portion of said first surface model and a portion of said second surface model to be displayed for a user.