FACE DETECTION DEVICE, FACE DETECTION SYSTEM, AND FACE DETECTION METHOD

• US 20180220939A1
• Filed: 05/10/2016
• Published: 08/09/2018
• Est. Priority Date: 06/19/2015
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Intellectual Property Management Co., Ltd. (Panasonic Holdings Corporation)
• Inventors: MATSUO, Masatoshi, NAKAMURA, Tsuyoshi, TEZUKA, Tadanori
• Granted Patent: US 10,441,198 B2
• Time in Patent Office: Days
• CPC Class Codes: A61B 2576/02 specially adapted for a particular organ or body part
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/1171 based on the shapes or appearances of their bodies or parts thereof
• CPC Class Codes: A61B 5/742 using visual displays A61B5/339 takes precedence
• CPC Class Codes: G06F 2218/12 Classification; Matching
• CPC Class Codes: G06V 10/56 relating to colour
• CPC Class Codes: G06V 40/15 Biometric patterns based on physiological signals, e.g. heartbeat, blood flow
• CPC Class Codes: G06V 40/161 Detection; Localisation; Normalisation
• CPC Class Codes: G06V 40/172 Classification, e.g. identification
• CPC Class Codes: G06V 40/40 Spoof detection, e.g. liveness detection
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing

Abstract

Face detection device that detects a face from an image including a person. The device includes a processor and a memory including instructions that, when executed by the processor, cause the processor to perform operations including: receiving captured images by a camera, detecting one face region or more in the captured images, extracting vital information which includes an index indicating a living state of a face imaged in the face region, based on image data regarding the detected face region; and determining whether or not the face in the face region is in a living state, based on the vital information. The face region detector recognizes a face region corresponding to the face which is determined to be in the living state by the vitality determiner among the one face region or more, as a face region based on a living body.

Claims

1. A face detection device that detects a face from an image including a person, the device comprising:

a processor; and

a memory including instructions that, when executed by the processor, cause the processor to perform operations including;

receiving captured images by a camera;

detecting one face region or more in the captured images;

extracting vital information which includes an index indicating a living state of a face imaged in the face region, based on image data regarding the detected face region; and

determining whether or not the face in the face region is in a living state, based on the vital information,

wherein the face region detector recognizes a face region corresponding to the face which is determined to be in the living state by the vitality determiner among the one face region or more, as a face region based on a living body.

2. The face detection device of claim 1,

the instructions further include estimating a pulse in the face imaged in the face region, based on the image data regarding the face region, and extracts the estimated pulse as the vital information.

3. The face detection device of claim 1, further comprising:

a display configured to display the captured image, and

instructions further include performing image processing for causing a user to distinguish a face region based on the living body from another face region among the one face region or more, on the captured image displayed in the display unit.

4. The face detection device of claim 1,

the instructions further include collating a feature quantity of a face in the face region with information of a face, which is previously registered,

only on the face which is determined to be in the living state by the vitality determiner.

5. The face detection device of claim 1,

the instructions further include collating a feature quantity of a face in the face region with information of a face, which is previously registered,

determining a face which is determined to be not in the living state by the vitality determiner, to be invalid or discrepant.

6. A face detection system comprising:

the face detection device of claim 1; and

a camera configured to input the captured image to the face detection device.

7. A face detection method of detecting a face from a captured image including a person, the method comprising:

receiving an input of captured images which include the person and are continuous in time;

detecting one face region or more in the captured image;

extracting vital information which includes an index indicating that a face imaged in the face region is in a living state, based on image data regarding the detected face region; and

determining whether or not the face in the face region is in the living state, based on the vital information,

wherein a face region corresponding to the face which is determined to be in the living state in the vitality determination step among the one face region or more is recognized as a face region based on a living body.