Methods and systems for generating electrophysiological maps

A computer-implemented method of generating an electrophysiological map of a geometric structure, the method comprising:

• receiving a set of original location data points corresponding to respective locations on a surface of the geometric structure;
• generating a geometric surface model of the geometric structure based on the received original location data points;
• acquiring electrical information at a plurality of diagnostic landmark points;
• assigning a color value, based on the acquired electrical information, to each of the diagnostic landmark points;
• creating a first three-dimensional (3D) texture region storing floats for a weighted physiological metric;
• creating a second 3D texture region storing floats for a total weight;
• for each diagnostic landmark point, additively blending the color value of the diagnostic landmark point into voxels of the first 3D texture region that are within a predetermined distance from the diagnostic landmark point;
• normalizing the colored voxels using the second 3D texture region to generate a normalized 3D texture map;
• applying the normalized 3D texture map to the geometric surface model to produce the electrophysiological map;
• and
• displaying the electrophysiological map.

A processing apparatus for generating an electrophysiological map of a geometric structure, the processing apparatus configured to:

• receive a set of original location data points corresponding to respective locations on a surface of the geometric structure;
• generate a geometric surface model of the geometric structure based on the received original location data points;
• acquire electrical information at a plurality of diagnostic landmark points;
• assign a color value, based on the acquired electrical information, to each of the diagnostic landmark points;
• create a first three-dimensional (3D) texture region storing floats for a weighted physiological metric;
• create a second 3D texture region storing floats for a total weight;
• for each diagnostic landmark point, additively blend the color value of the diagnostic landmark point into voxels of the first 3D texture region that are within a predetermined distance from the diagnostic landmark point;
• normalize the colored voxels using the second 3D texture region to generate a normalized 3D texture map;
• apply the normalized 3D texture map to the geometric surface model to produce the electrophysiological map;
• and
• display the electrophysiological map.