Method for recognizing iris and electronic device thereof

Patent metadata

Field	Value
Publication number	US-9852339-B2
Application number	US-201514929243-A
Country	US
Kind code	B2
Filing date	Oct 30, 2015
Priority date	Oct 31, 2014
Publication date	Dec 26, 2017
Grant date	Dec 26, 2017

Abstract

An electronic device, according to various embodiments of the present disclosure, may include: an image sensor that obtains the first image; an image processing unit that processes the obtained first image to thereby create the second image; an image quality inspecting unit that performs image quality inspection on the basis of the created second image; and an iris recognition unit that, if the image quality of the second image satisfies a predetermined condition, performs iris recognition on the basis of the obtained first image.

First claim

What is claimed is:

1. An electronic device comprising:
sensor configured to obtain a plurality of first images;
a memory; and
at least one processor, functionally connected to the sensor and the memory, configured to:
process at least one of the plurality of first images to create a second image;
perform image quality inspection based on the second image; and
perform, if the image quality of the second image satisfies a predetermined condition, iris recognition based on the at least one of the plurality of first images,

wherein the at least one of the plurality of first images is a high resolution image and the second image is a low resolution image created based on the at least one of the plurality of first images.

2. The electronic device of claim 1 , wherein the processor is configured to scale the at least one of the plurality of first images in order to create the second image.

3. The electronic device of claim 2 , wherein the processor is configured to adjust a size of the at least one of the plurality of first images or a number of pixels of the at least one of the plurality of first images in order to create the second image.

4. The electronic device of claim 1 , wherein the processor is configured to determine whether or not at least one of a focal accuracy, a degree of image blur, a brightness, a presence of a face, or a presence of an iris of the second image satisfies the predetermined condition.

5. The electronic device of claim 1 , wherein the processor is configured to, if the image quality of the second image does not satisfy the predetermined condition, perform the image quality inspection on a next frame image of the second image.

6. The electronic device of claim 1 , wherein the processor is configured to, if the image quality of the second image does not satisfy the predetermined condition, provide a user of the electronic device with a guidance using at least one of text information or audio information.

7. The electronic device of claim 1 , further comprising a buffer configured to store the obtained plurality of first images.

8. The electronic device of claim 1 , further comprising a display configured to display the created second image.

9. The electronic device of claim 1 , wherein the sensor obtains the plurality of first images through an infrared sensor.

10. A method for recognizing an iris in an electronic device, the method comprising:
obtaining a plurality of first images through a sensor;
processing at least one of the plurality of first images to create a second image;
performing image quality inspection based on the second image; and
performing, if the image quality of the second image satisfies a predetermined condition, iris recognition based on the at least one of the plurality of first images,
wherein the at least one of the plurality of first images is a high resolution image and the second image is a low resolution image created based on the at least one of the plurality of first images.

11. The method of claim 10 , wherein processing the at least one of the plurality of first images comprises scaling the at least one of the plurality of first images.

12. The method of claim 11 , wherein scaling the at least one of the plurality of first images comprises adjusting a size of the at least one of the plurality of first images or a number of pixels of the at least one of the plurality of first images in order to create the second image.

13. The method of claim 10 , wherein performing the image quality inspection comprises determining whether or not at least one of a focal accuracy, a degree of image blur, a brightness, a presence of a face, or a presence of an iris of the second image satisfies the predetermined condition.

14. The method of claim 10 , further comprising, if an image quality of the second image does not satisfy the predetermined condition, performing the image quality inspection on a next frame image of the second image.

15. The method of claim 10 , further comprising, if the image quality of the second image does not satisfy the predetermined condition, providing a user of the electronic device with a guidance by using at least one of text information or audio information.

16. The method of claim 10 , further comprising storing the obtained plurality of first images in a buffer.

17. The method of claim 10 , further comprising displaying the created second image on a display.

18. The method of claim 10 , wherein obtaining the plurality of first images comprises using an infrared sensor.

19. A method for recognizing an iris in an electronic device, the method comprising:
obtaining a plurality of first images through a sensor;
processing at least one of the plurality of first images to create a second image;
performing image quality inspection based on the second image; and
performing, if the image quality of the second image satisfies a predetermined condition, iris recognition based on a third image obtained through the sensor,
wherein the at least one of the plurality of first images and the third image are a high resolution image and the second image is a low resolution image created based on the at least one of the plurality first images.

20. The electronic device of claim 1 , wherein the processor is configured to:
obtain a third image through the sensor;
perform the iris recognition based on the obtained the third image,
wherein the third image is a high resolution image.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Moonsoo
• Jeon Boseul
• Han Youngeun
• Son Kwangsub
• Lee Kihuk

Classifications

• G06V40/193

  Preprocessing; Feature extraction · CPC title

• G06V40/19 Primary

  Sensors therefor · 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

• G06V10/17

  using hand-held instruments · CPC title

• G06V10/993

  Evaluation of the quality of the acquired pattern · CPC title