Existing fingerprint identification algorithms require higher quality fingerprint image and they are not robust for transformed fingerprint recognition. The topology pattern

which is based on the fingerprint topological properties and relationships has different levels of geometric invariance from the complete image to the local image parts and has a higher robustness in recognizing deformed fingerprints. In this paper

two different topology patterns

which are based on the attributions and topological relationship among the fingerprint minutiae and ridges are constructed. The experiment results show that the two constructed topological patterns have strong robustness for the deformed fingerprint image and can be used very well with images of poor quality especially for the slightly transformed fingerprint recognition.