Method of biometric authenticating using plurality of camera with different field of view and electronic apparatus thereof

Patent metadata

Field	Value
Publication number	US-10867202-B2
Application number	US-201916284968-A
Country	US
Kind code	B2
Filing date	Feb 25, 2019
Priority date	Feb 23, 2018
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

Disclosed is an electronic apparatus including a first camera, a second camera, and a processor. The first camera includes a first FOV. The second camera includes a second FOV corresponding to part of the first FOV. The processor is configured to obtain a request associated with biometric authentication. The processor is configured obtain at least one first image using the first camera and at least one second image using the second camera. The processor is configured to identify a first external object that is included in the at least first image while obtaining the first image. While obtaining the at least one second image, the processor is configured to provide notification information for obtaining at least one image including the second external object when the second external object that is at least part of the first external object, is not included in the at least second image.

First claim

What is claimed is:

1. An electronic apparatus comprising:
a first camera, having a first field of view (FOV), disposed on a surface of the electronic apparatus;
a second camera, having a second FOV corresponding to a part of the first FOV, disposed on the surface, the second FOV being narrower than the first FOV; and
a processor, connected to the first camera and the second camera, configured to:
obtain a request associated with biometric authentication,
obtain, based on the request, at least one first image using the first camera and at least one second image using the second camera,
while obtaining the at least one first image, provide a first notification indicating that a first external object is not identified based on a determination that the first external object is not identified from the at least one first image, the first external object being associated the biometric authentication, and
while obtaining the at least one second image, provide a second notification including guide information for positioning a second external object in the second FOV based on a determination that the first external object is identified from the at least one first image and the second external object is not identified from the at least one second image, the second external object corresponding to a part of the first external object,
wherein the guide information comprises at least one of a movement upward, a movement downward, a movement to left, or a movement to right, and the guide information is determined based on the first external object identified from the at least one first image.

2. The electronic apparatus of claim 1 , wherein while obtaining the at least one second image, the processor is further configured to:
when the second external object is identified from the at least one second image and satisfies a condition associated with a distance, perform the biometric authentication using a part of the at least one second image; and
when the second external object is identified from the at least one second image and does not satisfy the condition associated with the distance, provide notification information associated with the distance.

3. The electronic apparatus of claim 1 , wherein:
the first camera includes a complementary metal oxide semiconductor (CMOS) sensor or a charge-couple device (CCD) sensor; and
the second camera includes an infrared ray image sensor.

4. The electronic apparatus of claim 2 , wherein the processor is further configured to:
identify the distance between the electronic apparatus and at least one object of the first external object or the second external object; and
while the at least one object is positioned out of a specified distance range from the electronic apparatus, provide a notification associated with the distance indicating that the at least one object is positioned out of the specified distance range from the electronic apparatus.

5. The electronic apparatus of claim 4 , wherein the processor is further configured to identify the distance based on a width between a left eye and a right eye, corresponding to the at least one object.

6. The electronic apparatus of claim 4 , wherein the processor is further configured to identify the distance based on a size of the at least one object.

7. The electronic apparatus of claim 4 , wherein the processor is further configured to identify the distance based on the at least one first image and the at least one second image.

8. The electronic apparatus of claim 1 , wherein:
the first external object is a face; and
the second external object is at least one of an iris or an eyeball.

9. The electronic apparatus of claim 1 , further comprising a display, wherein the processor is further configured to display the second notification on the display.

10. The electronic apparatus of claim 1 , wherein the processor is further configured to:
identify a location of at least one object of the first external object or the second external object; and
while the at least one object is positioned out of a specified location range from the electronic apparatus, provide notification information associated with the location in which the at least one object is positioned within the specified location range from the electronic apparatus.

11. An electronic apparatus comprising:
a first camera, having a first field of view (FOV), disposed on a surface of the electronic apparatus;
a second camera, having a second FOV corresponding to a part of the first FOV, disposed on the surface, the second FOV being narrower than the first FOV; and
a processor, connected to the first camera and the second camera, configured to:
obtain a request associated with biometric authentication,
in response to obtaining the request, obtain a first image using the first camera and a second image using the second camera,
provide a first notification indicating that a first external object is not identified based on a determination that the first external object associated with the biometric authentication is not identified from the first image, and
provide a second notification including guide information based on a determination that the first external object is identified from the first image and a second external object is not identified from the second image, the second external object corresponding to a part of the first external object,
wherein the guide information comprises at least one of a movement upward, a movement downward, a movement to left, or a movement to right, and the guide information is determined based on the first external object identified from at least one first image.

12. The electronic apparatus of claim 11 , wherein the processor is further configured to:
obtain, using the second camera, a third image including the second external object;
identify the second external object in the third image; and
perform the biometric authentication using a portion of the third image.

13. The electronic apparatus of claim 11 , wherein:
the first camera includes a complementary metal oxide semiconductor (CMOS) sensor or a charge-couple device (CCD) sensor; and
the second camera includes an infrared ray image sensor.

14. The electronic apparatus of claim 11 , wherein the processor is further configured to:
obtain a fourth image using the second camera;
perform object recognition to identify the second external object within the fourth image;
when the object recognition fails to recognize the second external object within the fourth image, obtain a distance between the electronic apparatus and at least one object of the first external object or the second external object; and
provide a notification associated with the distance between the electronic apparatus and at least one object of the first external object or the second external object.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Chang Wonsuk
• Yang Hyeongwook
• YOO Juwoan
• Lee Kwanghyun
• Lee Heejun
• Sandhan Tushar Balasaheb
• Lee Yangsoo
• Park Jiyoon
• Lee Dasom

Classifications

• G06V40/70

  Multimodal biometrics, e.g. combining information from different biometric modalities · CPC title

• G06V40/67

  by interactive indications to the user · CPC title

• G06V10/147

  Details of sensors, e.g. sensor lenses (fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19) · CPC title

• G06F21/32 Primary

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• H04N23/64

  Computer-aided capture of images, e.g. transfer from script file into camera, check of taken image quality, advice or proposal for image composition or decision on when to take image · CPC title