Image capture device, biometric authentication apparatus, and image capture method

A biometric authentication apparatus comprising:

• a casing;
• an image sensor provided to a surface of the casing;
• and
• a processor configured to:
• detect a location with which a subject is in contact on the surface,
• cause the image sensor to perform image capture processing when a distance between a first portion of the subject and the image sensor meets a certain criterion, the first portion being different from a second portion of the subject, the second portion being in contact with the surface in the location, and
• perform authentication using biometric information extracted from data of a first image captured by the image capture processing,
• wherein the certain criterion is set based on first distance information indicating a first distance between the location and the image sensor and second distance information indicating a second distance between a certain location on the surface and the image sensor.

An image capture method executed by a computer including a casing and an image sensor provided to a surface of the casing, the image capture method comprising:

• detecting a location with which a subject is in contact on the surface;
• and
• causing the image sensor to perform image capture processing by a processor when a distance between a first portion of the subject and the image sensor meets a certain criterion, the first portion being different from a second portion of the subject, the second portion being in contact with the surface in the location,
• wherein the certain criterion is set based on first distance information indicating a first distance between the location and the image sensor and second distance information indicating a second distance between a certain location on the surface and the image sensor.