Patent ID: 8314794
Filing Date: 2012-11-20
Classification: A61B,G06T

Abstract:
1. A method for generating a digital representation of a surface of an object from point data indicative of coordinates of points on the surface, the method comprising: receiving a point data item indicative of coordinates of a point in a first sub-volume of a plurality of sub-volumes of a volume to be scanned; associating the point data item with the first sub-volume; determining whether a count of point data items associated with the first sub-volume and not having been used as an input for computing a local surface representation exceeds a first predetermined threshold; computing a local surface representation associated with the first sub-volume from received point data items associated with at least the first sub-volume based on an outcome of the determining whether the count of point data items exceeds the first predetermined threshold; determining whether a count of computed local surface representations that have not yet been used as input for computing a surface representation of the surface of the object exceeds a second predetermined threshold; and computing the surface representation of the surface of the object from a set of computed local surface representations associated with respective sub-volumes based on an outcome of the determining whether the count of computed local surface representations exceeds the second predetermined threshold, the computing including