IMAGE PROCESSING DEVICE, ELECTRONIC APPARATUS, AND GLASSES CHARACTERISTIC DETERMINATION METHOD

• US 20150029323A1
• Filed: 06/23/2014
• Published: 01/29/2015
• Est. Priority Date: 07/24/2013
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: NAGAO, Atsushi
• Granted Patent: US 9,740,931 B2
• Time in Patent Office: Days
• US Class Current: 348/78
• CPC Class Codes: G01B 11/24 for measuring contours or curvatures
• CPC Class Codes: G01M 11/0228 by measuring refractive power
• CPC Class Codes: G06T 3/40 Scaling of whole images or parts thereof, e.g. expanding or contracting
• CPC Class Codes: G06V 40/19 Sensors therefor
• CPC Class Codes: G06V 40/193 Preprocessing; Feature extraction

Abstract

An image processing device includes a memory; and a processor coupled to the memory, configured to determine a characteristic of glasses based on a first contour position and a second contour position, the first contour position indicating a contour position of a face that appears without the glasses and being detected from an obtained face image data of a user, and the second contour position indicating a contour position of the face that appears through the glasses and being detected from the obtained face image data of the user.

Claims

1. An image processing device comprising:

a memory; and

a processor coupled to the memory, configured to

determine a characteristic of glasses based on a first contour position and a second contour position, the first contour position indicating a contour position of a face that appears without the glasses and being detected from an obtained face image data of a user, and the second contour position indicating a contour position of the face that appears through the glasses and being detected from the obtained face image data of the user.

2. The image processing device according to claim 1, wherein

the processor is configured to decide magnification of a screen to be displayed based on the determined characteristic of the glasses.

3. The image processing device according to claim 1, wherein

the processor is configured to

determine the characteristic of the glasses as farsightedness glasses when a distance between a center position of the user'"'"'s face and the first contour position is smaller than a distance between the center position of the user'"'"'s face and the second contour position, and

the processor is configured to

determine the characteristic of the glasses as nearsightedness glasses when the distance between the center position of the user'"'"'s face and the first contour position is larger than the distance between the center position of the user'"'"'s face and the second contour position.

4. The image processing device according to claim 1, wherein

the memory stores glasses characteristic determination information in which a distance between the center position of the user'"'"'s face and the first contour position, a distance between the first contour position and the second contour position, a refraction index, and a characteristic of the glasses that indicates whether the glasses are nearsightedness glasses or farsightedness glasses are associated with each other, and

the processor is configured to determine a refraction index with reference to the glasses characteristic determination information, based on the distance between the center position of the user'"'"'s face and the first contour position and the distance between the first contour position and the second contour position.

5. The image processing device according to claim 1 further comprising:

an imaging element configured to obtain a face image data, wherein

the processor is configured to determine the characteristic of glasses based on the first contour position and the second contour position that are detected from the face image data obtained by the imaging element.

6. The image processing device according to claim 1 further comprising:

a display that displays a screen, wherein

the processor is configured to change magnification of the screen based on the determined characteristic of the glasses and displays the screen on the display.

7. The image processing device according to claim 6, wherein

the processor is configured to increase the magnification when a distance between the imaging element and the user becomes large, and when the determined characteristic of the glasses corresponds to farsightedness glasses, and

the processor is configured to increase the magnification when a distance between the imaging element and the user becomes small, and when the determined characteristic of the glasses corresponds to nearsightedness glasses.

8. A glasses characteristic determination method comprising:

obtaining a first contour position that indicates a contour position of a face that appears without glasses, and a second contour position that indicates a contour position of the face that appears through the glasses, from an obtained face image data of a user; and

determining, by a processor, a characteristic of the glasses based on the obtained first contour position and second contour position.

9. A machine readable medium storing a program that, when executed by a processor, causes the processor to perform operations comprising:

obtaining a first contour position that indicates a contour position of a face that appears without glasses, and a second contour position that indicates a contour position of the face that appears through the glasses, from an obtained face image data of a user; and

determining a characteristic of the glasses based on the obtained first contour position and second contour position.