Forged fingerprint identification method and forged fingerprint identification apparatus, and storage medium storing instructions to perform forged fingerprint identification method

A forged fingerprint identification apparatus, the apparatus comprising:

• a fingerprint image acquisition device configured to capture a fingerprint for an input finger of a target user at a fingerprint input area formed on at least a portion of a display screen and store the captured fingerprint for the input finger of the target user at the first position as a first fingerprint image of the target user;
• a touch sensor configured to sense a touch on a touch sensing area corresponding to the display screen;
• a memory configured to store one or more instructions;
• and
• a processor configured to execute the one or more instructions stored in the memory, wherein the instructions, when executed by the processor, cause the processor to:
• control the fingerprint image acquisition device to obtain the first fingerprint image of the target user;
• detect a movement for the input finger of the target user in a state of being in contact with the display screen through the touch sensor, and detect a second position at which the movement is stopped;
• control the fingerprint image acquisition device to capture the fingerprint for the input finger of the target user at the second position within the fingerprint input area, and storing the captured fingerprint for the input finger of the target user at the second position as a second fingerprint image of the target user;
• and
• determine whether the fingerprint of the target user is a forgery based on a result of comparison of a result of fingerprint comparison between the first fingerprint image and the second fingerprint image with predetermined threshold conditions.

A non-transitory computer readable storage medium storing computer executable instructions, wherein the instructions, when executed by a processor, cause the processor to perform a forged fingerprint identification method, the method comprising:

• capturing a fingerprint for an input finger of a target user at a first position within a fingerprint input area formed on at least a portion of a display screen, and storing the captured fingerprint for the input finger of the target user at the first position as a first fingerprint image of the target user;
• detecting a movement for the input finger of the target user in a state of being in contact with the display screen;
• determining a second position at which the movement is stopped;
• capturing the fingerprint for the input finger of the target user at the second position within the fingerprint input area, and storing the captured fingerprint for the input finger of the target user at the second position as a second fingerprint image of the target user;
• and
• determining whether the fingerprint of the target user is a forgery based on a result of comparison of a result of fingerprint comparison between the first fingerprint image and the second fingerprint image with predetermined threshold conditions.