Information processing apparatus, wearable device, information processing method, and program

Patent metadata

Field	Value
Publication number	US-11610430-B2
Application number	US-201917056594-A
Country	US
Kind code	B2
Filing date	May 9, 2019
Priority date	Jun 19, 2018
Publication date	Mar 21, 2023
Grant date	Mar 21, 2023

Abstract

An information processing apparatus, including: a feature point detecting unit configured to detect a feature point from an image including biological information obtained via a sensor unit; and a feature value extracting unit configured to extract a feature value that characterizes the feature point based on a peripheral image including the feature point.

First claim

The invention claimed is:

1. An information processing apparatus, comprising:
a feature point detecting unit configured to detect a feature point from an image including biological information obtained via a sensor; and
a feature value extracting unit configured to extract a feature value that characterizes the feature point based on a peripheral image including the feature point,
wherein the peripheral image includes information on a periphery of the feature point,
wherein the feature value includes at least one frequency of the biological information that is dominant in the peripheral image, and
wherein the feature point detecting unit and the feature value extracting unit are each implemented via at least one processor.

2. The information processing apparatus according to claim 1 , further comprising:
a pre-processing unit configured to perform correction processing with respect to the image including the biological information,
wherein the pre-processing unit is implemented via at least one processor.

3. The information processing apparatus according to claim 2 ,
wherein the pre-processing unit includes a noise removing unit configured to remove noise included in the image.

4. The information processing apparatus according to claim 3 ,
wherein the noise includes noise corresponding to an object other than the biological information.

5. The information processing apparatus according to claim 3 , further comprising:
a display,
wherein with an operation direction as a reference, the display is arranged on a near side and the sensor is arranged on a far side, and
wherein the noise includes noise attributable to a structure of the display.

6. The information processing apparatus according to claim 3 ,
wherein the sensor has a plurality of sub-sensor units, and
wherein the noise includes boundaries of the sub-sensor units.

7. The information processing apparatus according to claim 2 ,
wherein the pre-processing unit includes an image generating unit configured to generate an image that represents an estimation of a pattern corresponding to the biological information as the image including the biological information.

8. The information processing apparatus according to claim 7 ,
wherein the pattern corresponding to the biological information is a pattern based on a fingerprint line of a fingerprint.

9. The information processing apparatus according to claim 7 ,
wherein the pre-processing unit includes a certainty map generating unit configured to generate a certainty map that indicates a certainty of a result of the estimation.

10. The information processing apparatus according to claim 9 ,
wherein an area in which certainty is equal to or higher than a threshold in the image is determined based on a certainty map having been generated by the certainty map generating unit, and
wherein the feature point detecting unit is configured to detect a feature point that is present in the area.

11. The information processing apparatus according to claim 1 , further comprising:
a matching processing unit configured to perform matching processing using the feature value and a registered feature value having been registered in advance,
wherein the matching processing unit is implemented via at least one processor.

12. The information processing apparatus according to claim 1 ,
wherein the feature value is stored in a non-transitory computer-readable storage medium.

13. The information processing apparatus according to claim 1 ,
wherein the biological information is a fingerprint.

14. The information processing apparatus according to claim 13 ,
wherein the feature point is at least one of an ending, a bifurcation, an intersection, and an isolated point of a fingerprint line of a fingerprint.

15. The information processing apparatus according to claim 13 ,
wherein when a sweat gland is present around a feature point, the feature value includes a relative position of the sweat gland with respect to the feature point.

16. The information processing apparatus according to claim 11 ,
wherein a threshold for determining a result of the matching processing is changed based on contents of an application.

17. A wearable device, comprising:
a display with which a fingerprint comes into contact;
a sensor configured to acquire an image including a fingerprint;
a light-emitting unit configured to emit light at least during acquisition of the image;
a feature point detecting unit configured to detect a feature point from a fingerprint image obtained via the sensor; and
a feature value extracting unit configured to extract a feature value that characterizes the feature point based on a peripheral image including the feature point,
wherein the peripheral image includes information on a periphery of the feature point,
wherein the feature value includes at least one frequency of the biological information that is dominant in the peripheral image, and
wherein the light-emitting unit, feature point detecting unit, and the feature value extracting unit are each implemented via at least one processor.

18. An information processing method, comprising:
by a feature point detecting unit, detecting a feature point from an image including biological information obtained via a sensor; and,
by a feature value extracting unit, extracting a feature value that characterizes the feature point based on a peripheral image including the feature point,
wherein the peripheral image includes information on a periphery of the feature point,
wherein the feature value includes at least one frequency of the biological information that is dominant in the peripheral image, and
wherein the feature point detecting unit and the feature value extracting unit are each implemented via at least one processor.

19. A non-transitory computer-readable storage medium having embodied thereon a program, which when executed by a computer causes the computer to execute an information processing method, the information processing method comprising:
by a feature point detecting unit, detecting a feature point from an image including biological information obtained via a sensor; and
by a feature value extracting unit, extracting a feature value that characterizes the feature point based on a peripheral image including the feature point,
wherein the peripheral image includes information on a periphery of the feature point,
wherein the feature value includes at least one frequency of the biological information that is dominant in the peripheral image, and
wherein the feature point detecting unit and the feature value extracting unit are each implemented via at least one processor.

20. The information processing apparatus according to claim 1 ,
wherein the feature value further includes an angle of the biological information in the peripheral image.

Assignees

• Sony Corp

Inventors

• Sakumoto Koichi
• Yoshikawa Kiyoshi
• Tsuboi Naoto

Classifications

• G06F3/017

  Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883) · CPC title

• G06V10/30

  Noise filtering · CPC title

• G06F21/32

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• A61B5/681

  Wristwatch-type devices · CPC title

• G06V40/15

  Biometric patterns based on physiological signals, e.g. heartbeat, blood flow · CPC title