| 摘要 |
Method for detecting a protrusion of at least a part of a surface of an internal part of a human or animal body from three dimensional digital data representing said surface or said part thereof, comprising the steps of: detecting a surface region from the three dimensional digital data, wherein the surface region has at least one point at which a first and second normal curvature intersect that both have an original curvature value that is larger than zero or both have an original curvature value that is smaller than zero, wherein the second normal curvature has a curvature value that is closer to zero than the curvature value of the first normal curvature; digitally modifying the second normal curvature such that it has a modified curvature value that is closer to zero than its original curvature value, by which modification the surface region is digitally deformed such that a deformed surface region is formed, wherein the extent of deformation of the deformed surface region as compared to the detected surface region is related to an amount of protrusion. |
