Patent ID: 6816851
Filing Date: 2004-11-09
Classification: G06F,Y10S

Abstract:
A method for assigning an identity to an object (10) in a database (1), which object includes a plurality of coordinate points in a coordinate system representing a multidimensional reality, characterised byidentifying a first subset of the object's coordinate points that have an extreme value in one of the dimensions of the coordinate system (step 41); if said subset includes more than one coordinate point (step 42), further identifying from said subset a second subset of object points that have an extreme value in a second of the dimensions of the coordinate system (step 41); repeating the preceding steps until a subset consisting of a single coordinate point (P0) has been identified; and assigning the object an identity (11) based on the coordinates (x0, y0, z0, t0) of said coordinate point (P0) so that a one-to-one mapping exists between the identity (11) and the coordinate point (P0).