Patent ID: 11875598
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method, comprising:
obtaining, by an electronic device, a fingerprint image and a multi-frame touch signal; and
determining, by the electronic device based on the fingerprint image and the multi-frame touch signal, whether the fingerprint image is of a real finger or of a fake finger;
wherein the electronic device stores a multi-modal network, and the multi-modal network comprises a fingerprint image subnetwork and a touch signal subnetwork; and
wherein determining, by the electronic device, whether the fingerprint image is of a real finger or a fake finger comprises:
inputting, by the electronic device, the fingerprint image into the fingerprint image subnetwork for processing, to obtain a first eigenvector;
inputting, by the electronic device, the multi-frame touch signal into the touch signal subnetwork for processing, to obtain a second eigenvector;
fusing, by the electronic device, the first eigenvector with the second eigenvector to obtain a third eigenvector;
classifying, by the electronic device, the third eigenvector to obtain a classification result; and
determining, by the electronic device based on the classification result, whether the fingerprint image is of a real finger or of a fake finger.