Patent ID: 9224229
Filing Date: 2015-12-29
Classification: G06T

Abstract:
1. A process of bringing first and second data sets into registration or conformity with each other by electronic methods, each of the first and second data sets being a representation of a particular physical object, the process comprising: having a plurality of candidate data sets, each candidate data set being a differently shifted or distorted form of a reference data set, the reference data set being a representation of the physical object; comparing the first data set with each of the candidate data sets and in dependence on the comparisons determining a first transformation that brings into registration or conformity with each other the reference data set and a particular candidate data set out of the plurality of candidate data sets which provides a best match with the first data set; comparing the second data set with each of the candidate data sets and in dependence on the comparisons determining a second transformation that brings into registration or conformity with each other the reference data set and a particular candidate data set out of the plurality of candidate data sets which provides a best match with the second data set; and bringing the first and second data sets into registration or conformity with each other in dependence on the first and second transformations, wherein the plurality of candidate data sets are generated by applying a transformation to the reference data set, the transformation being changed from one application of the transformation to another application of the transformation such that each of a plurality of candidate data sets is a differently shifted or distorted reference data set, and wherein said applications of the transformation comprises a first main application of the transformation such that at least one predetermined variable of the transformation is changed in a substantially constant manner from one application of the transformation to another application of the transformation; and a second main application of the transformation such that the at least one predetermined variable is changed in a varying manner from one application of the transformation to another application of the transformation.