# US 12,183,000 B2 · Estimating device, estimating method, and estimating program

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- Number: US 12,183,000 B2
- Document ID: US12183000B2
- Status: Granted
- Kind: B2
- Application number: 17/709,408
- Filed: 2022-03-31
- Published: 2022-07-14
- Granted: 2024-12-31
- Earliest claimed: 2019-10-04
- Assignees: NTT Communications Corporation
- Applicants: NTT Communications Corporation
- Inventors: Ryosuke Tanno; Syuhei Asano
- Web page: https://patentgrep.com/patent/US12183000B2

## CPC

- G06T 7/0012: {Biomedical image inspection}
- A61B 5/1171: based on the shapes or appearances of their bodies or parts thereof
- G06F 21/32: using biometric data, e.g. fingerprints, iris scans or voiceprints
- G06T 7/73: using feature-based methods
- G06V 10/761: {Proximity, similarity or dissimilarity measures}
- G06V 10/7715: {Feature extraction, e.g. by transforming the feature space, e.g. multi-dimensional scaling [MDS]; Mappings, e.g. subspace methods}
- G06V 40/103: {Static body considered as a whole, e.g. static pedestrian or occupant recognition}
- G06V 2201/033: of skeletal patterns
- G06V 2201/07: Target detection
- G06T: IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING

## Abstract

An estimating device includes processing circuitry configured to acquire image data lacking part of a body of a person, restore a defective part of the body of the person in the image data by using the image data acquired as an input, and using a whole body restoration model for restoring the defective part of the body of the person in the image data, and estimate skeleton data by using the image data restored as an input, and using a skeleton estimation model for estimating the skeleton data related to a skeleton of the person.

## Claims

### Claim 1

An estimating device comprising:
processing circuitry configured to:
acquire image data lacking part of a body of a person;
restore a defective part of the body of the person in the image data by using the image data acquired as an input, and using a whole body restoration model for restoring the defective part of the body of the person in the image data; and
estimate skeleton data by using the image data restored as an input, and using a skeleton estimation model for estimating the skeleton data related to a skeleton of the person.

### Claim 2 (depends on 1)

The estimating device according to claim 1, wherein the processing circuitry is further configured to:
compute a similarity between the skeleton data estimated and skeleton data registered in advance, and
determine whether the similarity computed is equal to or larger than a predetermined threshold, determine that authentication has succeeded in a case in which the similarity is equal to or larger than the predetermined threshold, and determines that authentication has failed in a case in which the similarity is smaller than the predetermined threshold.

### Claim 3

An estimating method comprising:
acquiring image data lacking part of a body of a person;
restoring a defective part of the body of the person in the image data by using the image data acquired at the acquiring as an input, and using a whole body restoration model for restoring the defective part of the body of the person in the image data; and
estimating skeleton data by using the image data restored at the restoring as an input, and using a skeleton estimation model for estimating the skeleton data related to a skeleton of the person, by processing circuitry.

### Claim 4

A non-transitory computer-readable recording medium storing therein an estimating program that causes a computer to execute a process comprising:
acquiring image data lacking part of a body of a person;
restoring a defective part of the body of the person in the image data by using the image data acquired at the acquiring as an input, and using a whole body restoration model for restoring the defective part of the body of the person in the image data; and
estimating skeleton data by using the image data restored at the restoring as an input, and using a skeleton estimation model for estimating the skeleton data related to a skeleton of the person.