Correcting anatomical maps

A method for anatomical mapping, the method comprising:

• using a processor, computing a point P′ on a virtual surface of a point cloud representing an anatomical volume, by projecting another point P, which corresponds to a location on an anatomical surface of the anatomical volume, onto the virtual surface;
• defining a virtual sphere centered on a virtual line joining P to P′ such that P lies on a spherical surface of the virtual sphere;
• performing an operation selected from the group of operations consisting of:
• expanding the point cloud throughout the virtual sphere, and excluding the virtual sphere from the point cloud;
• and
• subsequently to performing the operation, regenerating the virtual surface such that, by virtue of having performed the operation, P lies on the virtual surface.

A computer software product comprising a tangible non-transitory computer-readable medium in which program instructions are stored, which instructions, when read by a processor, cause the processor to:

• compute a point P′ on a virtual surface of a point cloud representing an anatomical volume, by projecting another point P, which corresponds to a location on an anatomical surface of the anatomical volume, onto the virtual surface,
• define a virtual sphere centered on a virtual line joining P to P′ such that P lies on a spherical surface of the virtual sphere,
• perform an operation selected from the group of operations consisting of:
• expanding the point cloud throughout the virtual sphere, and excluding the virtual sphere from the point cloud, and
• subsequently to performing the operation, regenerate the virtual surface such that, by virtue of having performed the operation, P lies on the virtual surface.