Method and electronic device for performing user authentication function by using UDC

1 . An electronic device comprising:

a display;

a plurality of under-display cameras (UDCs);

memory, comprising one or more storage media, storing instructions and information related to user authentication; and

one or more processors communicatively coupled to the display, the plurality of UDCs, and the memory,

wherein the instructions, when executed by the one or more processors, cause the electronic device to:

identify face position information of a user for a function of user authentication using at least one of the plurality of UDCs,

identify coordinate information of a user's touch input obscuring at least one UDC,

select at least one UDC among the plurality of UDCs able to obtain an image including a user's face for user authentication, based on the face position information and the coordinate information,

obtain at least one image including the user's face using the selected at least one UDC, and

perform the function of user authentication, based on the obtained at least one image.

2 . The electronic device of claim 1 , further comprising:

a touch sensor,

wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

detect the user's touch input through the touch sensor, and

identify the coordinate information corresponding to the detected user's touch input.

3 . The electronic device of claim 1 ,

wherein the plurality of UDCs comprises a first UDC in a first photographing range and a second UDC in a second photographing range that is smaller than the first photographing range,

wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

obtain a first image comprising the user's face using the first UDC in the first photographing range,

identify the face position information of the user, based on the first image,

select the second UDC in the second photographing range, based on the face position information of the user,

obtain a second image using the selected second UDC in the second photographing range, and

perform the function of user authentication, based on the obtained second image, and

wherein the first image comprises a low-quality image and the second image comprises a high-quality image.

4 . The electronic device of claim 1 ,

wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

identify a partial area of the display corresponding to a position of the selected at least one UDC, and

perform a transparentizing operation on the identified partial area, and

wherein the transparentizing operation comprises turning off at least one pixel constituting the display.

5 . The electronic device of claim 1 , wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

select a first UDC of the plurality of UDCs, based on the face position information of the user,

perform a transparentizing operation on a partial area of the display corresponding to the first UDC, and

obtain the at least one image through the transparentized partial area using the first UDC.

6 . The electronic device of claim 5 , wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

select a second UDC of the plurality of UDCs, in case that the user's face is not identified in the obtained at least one image, based on the face position information of the user,

perform a transparentizing operation on a partial area of the display corresponding to the second UDC, and

obtain the at least one image through the transparentized partial area using the second UDC.

7 . The electronic device of claim 1 , wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

obtain at least one image using the at least one UDC, and

in case that the user's face is not identified in the obtained at least one image, display guide information to induce the user to gaze at the display.

8 . The electronic device of claim 1 , wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

produce a three-dimensional (3D) image, in case that there is a plurality of images, based on the plurality of images, and

perform the function of user authentication, based on the produced 3D image.

9 . The electronic device of claim 1 , wherein the instructions, when executed by the one or more processors, further cause the electronic device to:

determine whether or not the user's face is identified based on the obtained at least one image, and

in case that the user's face is not identified, deactivate a UDC that captured the image in which the user's face is not identified.

10 . A method of an electronic device, the method comprising:

identifying face position information of a user for a function of user authentication using at least one of a plurality of under-display cameras (UDCs) included in the electronic device;

identifying coordinate information of a user's touch input obscuring at least one UDC through a display of the electronic device;

selecting at least one UDC among the plurality of UDCs able to obtain an image including a user's face for user authentication, based on the face position information and the coordinate information;

obtaining at least one image including the user's face using the selected at least one UDC; and

performing the function of user authentication, based on the obtained at least one image.

11 . The method of claim 10 , wherein the identifying of the face position information of the user comprises:

obtaining a first image comprising the user's face using a first UDC in a first photographing range among the plurality of UDCs; and

identifying the face position information of the user, based on the first image.

12 . The method of claim 11 , wherein the performing of the function of user authentication comprises:

based on the face position information of the user, selecting a second UDC in a second photographing range, which is smaller than the first photographing range, among the plurality of UDCs;

obtaining a second image using the selected second UDC in the second photographing range; and

performing the function of user authentication, based on the obtained second image.

13 . The method of claim 10 , further comprising:

identifying a partial area of the display corresponding to a position of the selected at least one UDC; and

performing a transparentizing operation on the identified partial area,

wherein the transparentizing operation comprises turning off at least one pixel constituting the display.

14 . The method of claim 10 , further comprising:

selecting a first UDC of the plurality of UDCs, based on the face position information of the user;

performing a transparentizing operation on a partial area of the display corresponding to the first UDC; and

obtaining the at least one image through the transparentized partial area using the first UDC.

15 . The method of claim 14 , further comprising:

selecting a second UDC of the plurality of UDCs, in case that the user's face is not identified in the obtained at least one image, based on the face position information of the user;

performing a transparentizing operation on a partial area of the display corresponding to the second UDC; and

obtaining the at least one image through the transparentized partial area using the second UDC.

16 . The method of claim 10 , further comprising:

obtaining at least one image using the at least one UDC; and

in case that the user's face is not identified in the obtained at least one image, displaying guide information to induce the user to gaze at the display.

17 . The method of claim 10 , further comprising:

detecting the user's touch input through a touch sensor; and

identifying the coordinate information corresponding to the detected user's touch input.

18 . The method of claim 10 , further comprising:

producing a three-dimensional (3D) image, in case that there is a plurality of images, based on the plurality of images; and

performing the function of user authentication, based on the produced 3D image.

19 . One or more non-transitory computer-readable storage media storing computer-executable instructions that, when executed by one or more processors of an electronic device, cause the electronic device to perform operations, the operations comprising:

identifying face position information of a user for a function of user authentication using at least one of a plurality of under-display cameras (UDCs) included in the electronic device;

identifying coordinate information of a user's touch input obscuring at least one UDC through a display of the electronic device;

selecting at least one UDC among the plurality of UDCs able to obtain an image including a user's face, based on the face position information and the coordinate information;

obtaining at least one image including the user's face using the selected at least one UDC; and

performing the function of user authentication, based on the obtained at least one image.

20 . The one or more non-transitory computer-readable storage media of claim 19 , the operations further comprising:

obtaining a first image comprising the user's face using a first UDC in a first photographing range among the plurality of UDCs; and

identifying the face position information of the user, based on the first image.