IP Library › Granted Patent US 12664797
Granted Patent B2
US 12664797 · App. 18/255,564 · Granted Jun 23, 2026

Electronic device, information processing apparatus, degree-of-concentration calculation program, and degree-of-concentration calculation method

Inventor: Takayuki Shinozaki (Tokyo, JP)
Assignee: KYOCERA Corporation
G06V20/597G06T7/70G06V10/776G06T2207/20081G06T2207/30196G06T2207/30268
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Quick Facts
Patent No.
US 12664797
App. No.
18/255,564
Granted
Jun 23, 2026
Kind
B2
Abstract

An electronic device 10 includes an image-capturing unit 11 , a line-of-sight detector 12 , and a controller 14 . The image-capturing unit 11 generates an image corresponding to a view by performing image capturing. The line-of-sight detector 12 detects a line of sight of a subject with respect to the view. The controller 14 determines, based on the image, the reliability of the image as a source of estimation of the degree of concentration of the subject. The controller 14 estimates the degree of concentration of the subject based on the reliability, the image, and the line of sight.

Claims (37)

1 . An electronic device comprising:

an image-capturing unit configured to generate an image corresponding to a view by performing image capturing;

a line-of-sight detector configured to detect a line of sight of a subject with respect to the view; and

a controller configured to determine, based on the image, a reliability of the image as a source of estimation of a degree of concentration of the subject and configured to estimate the degree of concentration of the subject based on the reliability, the image, and the line of sight.

2 . The electronic device according to claim 1 ,

wherein the controller stops estimation of the degree of concentration when the reliability is less than or equal to a reliability threshold.

3 . The electronic device according to claim 2 ,

wherein the controller lowers the reliability threshold as a time for which estimation of the degree of concentration is stopped becomes longer.

4 . The electronic device according to claim 1 ,

wherein the controller estimates the degree of concentration of the subject based on the images of a greater number of frames, the lower the reliability, the images being consecutively captured.

5 . The electronic device according to claim 1 ,

wherein the controller determines the reliability by calculating the reliability based on at least one out of a type, a number, and a position of an element included in the image.

6 . The electronic device according to claim 5 ,

wherein the element may be any one out of a vehicle, a pedestrian, road geometry, a sign, a signal, and an optical flow.

7 . The electronic device according to claim 1 ,

wherein the controller determines the reliability by estimating the reliability based on the image, a relationship between the learning image and information on the reliability being constructed using machine-learned learning data.

8 . The electronic device according to claim 1 , wherein

the controller is further configured to calculate the reliability based on at least one out of a type, a number, or a position within an image of an element included in the image detected by image recognition.

9 . An information processing apparatus comprising:

an acquiring unit configured to acquire an image corresponding to a view and a line of sight of a subject to the view;

a controller configured to determine, based on the image, a reliability of the image as a source of estimation of a degree of concentration of the subject and configured to estimate the degree of concentration of the subject based on the reliability, the image, and the line of sight; and

an output unit configured to output the degree of concentration.

10 . The information processing apparatus according to claim 9 , wherein

the controller is further configured to calculate the reliability based on at least one out of a type, a number, or a position within an image of an element included in an image detected by image recognition.

11 . A non-transitory computer-readable recording medium including a degree-of-concentration calculation program configured to cause a computer to function as:

an image-capturing unit configured to generate an image corresponding to a view by performing image capturing;

a line-of-sight detector configured to detect a line of sight of a subject with respect to the view; and

a controller configured to determine, based on the image, a reliability of the image as a source of estimation of a degree of concentration of the subject and configured to estimate the degree of concentration of the subject based on the reliability, the image, and the line of sight.

12 . The non-transitory computer-readable recording medium according to claim 11 , wherein

the controller is further configured to calculate the reliability based on at least one out of a type, a number, or a position within an image of an element included in an image detected by image recognition.

13 . A degree-of-concentration calculation method comprising:

generating an image corresponding to a view by performing image capturing;

detecting a line of sight of a subject to the view;

determining, based on the image, a reliability of the image as a source of estimation of a degree of concentration of the subject; and

estimating the degree of concentration of the subject based on the reliability, the image, and the line of sight.

14 . The degree-of-concentration calculation method according to claim 13 , wherein

the determining includes calculating the reliability based on at least one out of a type, a number, or a position within an image of an element included in an image detected by image recognition.