Abstract: A method of determining a match between a candidate template and a super-template involves using the super-template to identify i) spatial coordinates for a plurality of minutiae that define an object, and ii) a quality associated with each minutiae. For sets of the super-template minutiae having at least two defined minutiae qualities, at least one Delaunay triangle is computed for each set. A match between the candidate template and the super-template is determined by determining a correspondence of Delaunay triangles in the candidate and super-templates, which correspondence results in an alignment of at least some minutiae of the candidate template with at least some minutiae of the super-template. Related methods, articles and apparatus are also disclosed.