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

Claim 25:
26. An apparatus, comprising:
one or more image sensors configured to acquire an infrared (IR) image including an object and a depth image including the object; and
a processor configured to:
generate a preprocessed IR image by performing first preprocessing based on first feature points detected in a bounding region of an object included in the IR image,
generate a preprocessed depth image by performing second preprocessing based on second feature points detected in a bounding region of the object included in the depth image, the second feature points being detected by matching positions of the first feature points detected in the IR image to the depth image, and
determine either one or both of a liveness test result and an authentication result with respect to the object 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.