Method for recognizing iris and electronic device thereof

Patent metadata

Field	Value
Publication number	US-2016125221-A1
Application number	US-201514929243-A
Country	US
Kind code	A1
Filing date	Oct 30, 2015
Priority date	Oct 31, 2014
Publication date	May 5, 2016
Grant date	—

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:
an image sensor configured to obtain a first image; an image processing unit configured to process the first image to create a second image; an image quality inspecting unit configured to perform image quality inspection on the second image; and an iris recognition unit configured to, if the image quality of the second image satisfies a predetermined condition, perform iris recognition on the obtained first image.

2 . The electronic device of claim 1 , wherein the image processing unit is configured to scale the first image in order to create the second image.

3 . The electronic device of claim 2 , wherein the image processing unit is configured to adjust a size of the first image or a number of pixels of the first image in order to create the second image.

4 . The electronic device of claim 1 , wherein the image quality inspecting unit 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 image quality inspecting unit 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 image quality inspecting unit is configured to, if the image quality of the second image does not satisfy the predetermined condition, provide the user of the electronic device with the 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 first image.

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 image sensor includes at least one of an infrared image sensing unit or an image sensing unit.

10 . A method for recognizing an iris in an electronic device, the method comprising:
obtaining a first image through an image sensor; processing the first image to create a second image; performing image quality inspection on the second image; and if the image quality of the second image satisfies a predetermined condition, performing a iris recognition on the obtained first image.

11 . The method of claim 10 , wherein processing the first image comprises scaling the first image.

12 . The method of claim 11 , wherein scaling the first image comprises adjusting a size of the first image or a number of pixels of the first image 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 the 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 first image 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 the image sensor includes at least one of an infrared image sensing unit or an image sensing unit.

19 . A non-transitory computer-readable recording medium for storing a program causing a processor configured to, when executed by the processor, execute the operations of:
obtaining a first image through an image sensor; processing the obtained first image in order to create a second image by an image processing unit; performing image quality inspection on the created second image by an image quality inspecting unit; and if the image quality of the second image satisfies a predetermined condition, performing iris recognition on the obtained first image by an iris recognition unit.

20 . The medium of claim 19 , wherein the operations further comprises, if the image quality of the second image does not satisfy the predetermined condition, providing the user of the electronic device with a guidance, using at least one of text information or audio information.

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