Biological information acquisition device and biological information acquisition method
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTaichi YAMADA, Hideyuki NAKAMURA
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Abstract
A biometric information acquisition device captures an image of a fingertip in a non-contact state under a first focus control or a second focus control, acquires a first captured image captured under the first focus control and first focus distance information in which the first captured image is captured, determines a focus section for perform imaging under the second focus control based on the first focus distance information, performs imaging at each predetermined focus distance, and acquires and records any one second captured image among M (M is an integer of 2 or more) second captured images captured under the second focus control.
Claims12
A biometric information acquisition device comprising:
- a camera that captures an image of a fingertip of a subject in a non-contact state under each of a first focus control and a second focus control;
- an acquisition unit that acquires a first captured image captured under the first focus control and first focus distance information in which the first captured image is captured;
- a determination unit that determines a focus section for performing imaging under the second focus control based on the first focus distance information and cause the camera to perform imaging across the focus section at each predetermined focus distance under the second focus control;
- and
- a control unit that acquires and records any one second captured image among M (M is an integer of 2 or more) second captured images captured under the second focus control.
A biometric information acquisition method performed by a biometric information acquisition device capable of acquiring a captured image in which a fingertip of a subject is captured, the biological information acquisition method comprising:
- capturing an image of a finger of a subject in a non-contact state under a first focus control by a camera;
- acquiring a first captured image captured under the first focus control and first focus distance information in which the first captured image is captured;
- determining a focus section for performing imaging under a second focus control different from the first focus control based on the first focus distance information;
- performing imaging across the focus section at each predetermined focus distance under the second focus control by the camera;
- and
- acquiring and recording any one second captured image among M (M is an integer of 2 or more) second captured images captured under the second focus control.
Dependencies are inferred from the claim text.