Method and apparatus for biometric authentication based on face recognition

Patent metadata

Field	Value
Publication number	US-9600064-B2
Application number	US-201414586039-A
Country	US
Kind code	B2
Filing date	Dec 30, 2014
Priority date	Jun 11, 2014
Publication date	Mar 21, 2017
Grant date	Mar 21, 2017

Abstract

A method for biometric authentication based on face recognition, the method includes changing a first processor to an active state to try a detection of face area of a subject for a preset time period with respect to image information of the subject that is successively acquired; changing the second processor to an idle state when the face area is not detected for the preset time period and allowing a second processor in an active state to try a detection of face area; and returning the first processor to the active state and resuming biometric authentication using the detected face area when the face area is detected by the second processor.

First claim

What is claimed is:

1. A method for biometric authentication based on face recognition, the method comprising:
changing a first processor to an active state to try a detection of face area of a subject for a preset time period with respect to image information of the subject that is successively acquired;
changing the first processor to an idle state when the face area is not detected for the preset time period and allowing a second processor in an active state to try a detection of the face area; and
returning the first processor to the active state and resuming biometric authentication using the detected face area when the face area is detected by the second processor.

2. The method of claim 1 , further comprising:
returning the first processor to the active state to try again the detection of the face area when a value of detection trial time of the face area taken by the second processor exceeds a threshold time value, although the face area is not detected by the second processor.

3. An apparatus for biometric authentication based on face recognition, the apparatus comprising:
an image capturing unit configured to acquire image information with respect to a subject;
a controller configured to:
change a first processor to an active state in order to try a detection of face area of the subject for a preset time period with respect to image information of the subject that is successively acquired,
change the first processor to an idle state when the face area is not detected for the preset time period,
allow a second processor in an active state to try a detection of face area, and
return the first processor to the activate state to resume biometric authentication using the detected face area when the face area is detected by the second processor; and
an authentication interworking unit configured to interwork with a load device depending on the authentication result of the face area by the controller.

4. The apparatus of claim 3 , wherein the controller is further configured to return the first processor to the active state to try again the detection of the face area when a value of detection trial time of the face area taken by the second processor exceeds a threshold time value, although the face area is not detected by the second processor.

Assignees

• Suprema Inc

Inventors

• Lee Kideok
• Shin Hochul
• Song Bong Seop
• Lee Jae Won

Classifications

• G06F1/3293 Primary

  by switching to a less power-consuming processor, e.g. sub-CPU · CPC title

• G06F1/3231

  Monitoring the presence, absence or movement of users · CPC title

• G06K9/00221

  Physics · mapped topic

• G06V40/16

  Human faces, e.g. facial parts, sketches or expressions · CPC title

• Y02D10/00

  Energy efficient computing, e.g. low power processors, power management or thermal management · CPC title