Biometrics-based identification method and apparatus
First Claim
1. A method of identification comprising:
- measuring a surface structure and an inner structure of a body member so as to obtain a surface-structure measurement result and an inner-structure measurement result, the inner structure of the body member being measured by means of a radiation that traverses the body member so as to obtain a transmission image of the body member;
comparing the surface-structure measurement result with a surface-structure reference result that distinguishes an individual from other individuals;
comparing the inner-structure measurement result with an inner-structure reference result that is associated with the same individual and that distinguishes the individual from other individuals;
applying a further radiation to an object that should normally be the body member so as to obtain a verification image, and comparing the verification image with the transmission image of the body member so as to ascertain that the verification image represents the inner structure of the body member less clearly than the transmission image.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention relates to an identification method carried out as follows. A surface structure and an inner structure of a body member are measured (ST1-ST4, ST7) so as to obtain a surface-structure measurement result (FPM) and an inner-structure measurement result (BVPM), respectively. The surface-structure measurement result (FPM) is compared (ST5) with a surface-structure reference result (FPR) that distinguishes an individual from other individuals. The inner-structure measurement result (BVPM) is compared (ST8) with an inner-structure reference result (BVPR) that is associated with the same individual and that distinguishes the individual from other individuals. The body member may be, for example, a finger. In that case, the surface structure comprises a fingerprint and the inner structure comprises a blood-vessel pattern.
11 Citations
9 Claims
-
1. A method of identification comprising:
-
measuring a surface structure and an inner structure of a body member so as to obtain a surface-structure measurement result and an inner-structure measurement result, the inner structure of the body member being measured by means of a radiation that traverses the body member so as to obtain a transmission image of the body member; comparing the surface-structure measurement result with a surface-structure reference result that distinguishes an individual from other individuals; comparing the inner-structure measurement result with an inner-structure reference result that is associated with the same individual and that distinguishes the individual from other individuals; applying a further radiation to an object that should normally be the body member so as to obtain a verification image, and comparing the verification image with the transmission image of the body member so as to ascertain that the verification image represents the inner structure of the body member less clearly than the transmission image. - View Dependent Claims (2, 3, 4, 5, 6, 9)
-
-
7. An identification apparatus comprising:
-
a measurement arrangement arranged to measure a surface structure and an inner structure of a body member so as to obtain a surface-structure measurement result and an inner-structure measurement result, the measurement arrangement being arranged to measure the inner structure of the body member by a radiation that traverses the body member so as to obtain a transmission image of the body member, the measurement arrangement being further arranged to apply a further radiation to an object that should normally be the body member so as to obtain a verification image; a processor arranged to compare the surface-structure measurement result with an surface-structure reference result that distinguishes an individual from other individuals, and to compare the inner-structure measurement result with an inner-structure reference result that is associated with the same individual and that distinguishes the individual from other individuals, the processor being further arranged to compare the verification image with the transmission image of the body member so as to ascertain that the verification image represents the inner structure of the body member less clearly than the transmission image. - View Dependent Claims (8)
-
Specification