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

Patent metadata

Field	Value
Publication number	US-2021209333-A1
Application number	US-201917056594-A
Country	US
Kind code	A1
Filing date	May 9, 2019
Priority date	Jun 19, 2018
Publication date	Jul 8, 2021
Grant date	—

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

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 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.

2 . The information processing apparatus according to claim 1 , comprising
a pre-processing unit configured to perform correction processing with respect to an image that includes the biological information.

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 , comprising a display, wherein
with an operation direction as a reference, the display is arranged on a near side and the sensor unit is arranged on a far side, and the noise includes noise attributable to a structure of the display.

6 . The information processing apparatus according to claim 3 , wherein
the sensor unit has a plurality of sub-sensor units, and 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 an 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 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 , comprising
a matching processing unit configured to perform matching processing using the feature value and a registered feature value having been registered in advance.

12 . The information processing apparatus according to claim 1 , wherein
the feature value is stored in a storage unit.

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 changeable.

17 . A wearable device, comprising:
a display with which a fingerprint comes into contact; a sensor unit 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 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.

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 unit; 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.

19 . A program that causes a computer to execute an information processing method including:
by a feature point detecting unit, detecting a feature point from an image including biological information obtained via a sensor unit; 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.

Assignees

• Sony Corp

Inventors

• Sakumoto Koichi
• Yoshikawa Kiyoshi
• Tsuboi Naoto

Classifications

• G04G21/025 Primary

  for measuring physiological data · CPC title

• G06V40/12

  Fingerprints or palmprints · CPC title

• G06V40/1353

  Extracting features related to minutiae or pores · CPC title

• G06V40/15

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

• G06V40/1365

  Matching; Classification · CPC title