Patent ID: 11869272
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A processor-implemented method, comprising:
generating a preprocessed infrared (IR) image by performing first preprocessing based on first feature points detected in a bounding region of an object included in an IR image;
generating a preprocessed depth image by performing second preprocessing based on second feature points detected in a bounding region of the object included in a depth image, the second feature points in the depth image being detected by matching positions of the first feature points detected in the IR image to the depth image; and
determining whether authentication of the object is successful based on the preprocessed IR image and the preprocessed depth image,
wherein the generating of the preprocessed IR image comprises:
generating a first intermediate image based on pixel values of a current pixel and neighboring pixels of the current pixel in the IR image;
generating a second intermediate image by performing normalization on the IR image; and
generating the preprocessed IR image based on the IR image, the first intermediate image, and the second intermediate image.