Patent ID: 11881052
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 3:
4. The face search device according to claim 3, wherein before the training the second feature mapping model, based on the face sample image, the first face sample feature, and the target feature corresponding to the face sample image, to obtain the first feature mapping model, the operations further comprise:
inputting the face sample image into N second feature extraction models to output N second face sample features, wherein N is a positive integer greater than or equal to 2;
multiplying the N second face sample features by N preset coefficients in one-to-one correspondence;
concatenating N second face sample features obtained through multiplication to obtain a concatenated face sample feature; and
obtaining, based on the concatenated face sample feature, a target feature corresponding to the face sample image, wherein a dimension quantity of the target feature is less than or equal to a sum of dimension quantities of the N second feature extraction models.