Patent ID: 9734379
Date: 2017-08-15
CPC Classifications: G06K

Claim:
1. A method in a fingerprint sensing system, the fingerprint sensing system comprising a two-dimensional fingerprint sensor, the method comprising: obtaining initial fingerprint data, calculating, based on the initial fingerprint data, a finger size of a finger of a user, calculating, based on the finger size, an appropriate area of the finger for obtaining fingerprint enrollment data, obtaining a plurality of finger positions, the finger positions being in relation to the sensor, providing, to the user, position guidance information for guiding the user to position the finger in relation to the sensor according to the finger positions, wherein the provision of the position guidance information is performed such that the finger positions are indicated to the user in a pseudo random order, obtaining, while providing the position guidance information, further fingerprint data from the sensor until an amount of fingerprint data has been obtained that exceeds a coverage threshold associated with the appropriate area of the finger, and calculating, based on any of the initial fingerprint data and the further fingerprint data, the fingerprint enrollment data.