Scoring method, scoring apparatus, and recording medium

Patent metadata

Field	Value
Publication number	US-11645872-B2
Application number	US-202016802596-A
Country	US
Kind code	B2
Filing date	Feb 27, 2020
Priority date	Sep 5, 2017
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

A scoring method executed by a processor, includes: acquiring sensor data obtained by measuring a competitor in a scoring competition; extracting joint information of the competitor, based on an analysis result of the sensor data; acquiring an evaluation item and an evaluation index that correspond to the joint information of the competitor, based on a rule in which a posture specified by a series of joint motions and joint angles, the evaluation item, and the evaluation index for performance evaluation are associated with each other; and evaluating a success or failure of a skill and a degree of perfection of the skill in a performance of the competitor, based on the analysis result, the evaluation item, and the evaluation index.

First claim

What is claimed is:

1. A scoring method executed by a processor, the scoring method comprising:
acquiring sensor data obtained by measuring a competitor in a scoring competition;
extracting joint information of the competitor, based on an analysis result of the sensor data;
determining an evaluation item relevant to an evaluation of a posture of the competitor from a plurality of evaluation items, based on a rule and the posture of the competitor determined from the joint information of the competitor, the rule defining a relation between the posture specified by a series of joint motions and joint angles, the evaluation item corresponding to the posture among the plurality of evaluation items, and an evaluation index corresponding to the evaluation item that is used for evaluating performance in the scoring competition; and
generating and outputting a display screen including an evaluation result and a value of the evaluation item used for the evaluation, the evaluation result being obtained by evaluating a success or failure of a skill and a degree of perfection of the skill in a performance of the competitor determined from the posture of the competitor, based on the evaluation index associated with the evaluation item relevant to the evaluation of the posture of the competitor, and the joint information of the competitor, wherein,
the posture defined by the rule includes a static posture specified by the series of joint motions and joint angles, and a motion posture composed of a combination of a plurality of static postures,
the determining includes: determining from a time-series change in the joint information of the competitor, each of the static postures of the competitor in the performance; determining the motion posture corresponding to the combination of the determined static postures; and determining the evaluation item corresponding to the determined motion posture, and
the outputting includes comparing a success condition of the static postures included in the evaluation index of the evaluation item of the motion posture with the static postures determined from the time-series change in the joint information of the competitor, and, on condition that success conditions of the static postures are satisfied, outputting that the motion posture is successful.

2. The scoring method according to claim 1 , wherein
the evaluation index includes a posture condition for success of a skill in a performance such that the posture condition is associated with the evaluation item, and
the evaluating is to evaluate a success or failure of the skill by comparing the condition with a posture of the competitor, the posture being obtained from joint information corresponding to the evaluation item.

3. The scoring method according to claim 1 , wherein
the evaluation index includes information on a series of ideal motions of joints in a predetermined performance such that the information is associated with the evaluation item, and
the evaluating is to evaluate the degree of perfection of the skill, based on how much a series of joint motions of the competitor that is obtained from joint information corresponding to the evaluation item deviates from the series of the ideal joint motions.

4. The scoring method according to claim 1 , wherein
the outputting includes:
receiving a specification of a specific time point in the performance, and
generating and displaying the display screen including a value of the evaluation item obtained from joint information of an actual competitor, the joint information corresponding to the specific time point, and a 3D model based on the joint information of the competitor obtained from sensor data corresponding to a specified first time point.

5. The scoring method according to claim 1 , wherein:
the outputting includes:
based on sensor data corresponding to a specific section among sensor data in a section of the performance, generating and displaying the display screen including a shift in a distance between joints, a shift in a distance between a certain joint or a specific part and a reference plane, and a shift in an angle formed by the certain joint or the specific part and the reference plane.

6. A non-transitory computer-readable recording medium storing therein a scoring program that causes a computer to execute a process, the process comprising:
acquiring sensor data obtained by measuring a competitor in a scoring competition;
extracting joint information of the competitor, based on an analysis result of the sensor data;
determining an evaluation item relevant to an evaluation of a posture of the competitor from a plurality of evaluation items, based on a rule and the posture of the competitor determined from the joint information of the competitor, the rule defining a relation between the posture specified by a series of joint motions and joint angles, the evaluation item corresponding to the posture among the plurality of evaluation items, and an evaluation index corresponding to the evaluation item that is used for evaluating performance in the scoring competition; and
generating and outputting a display screen including an evaluation result and a value of the evaluation item used for the evaluation, the evaluation result being obtained by evaluating a success or failure of a skill and a degree of perfection of the skill in a performance of the competitor determined from the posture of the competitor, based on the evaluation index associated with the evaluation item relevant to the evaluation of the posture of the competitor and the joint information of the competitor, wherein,
the posture defined by the rule includes a static posture specified by the series of joint motions and joint angles, and a motion posture composed of a combination of a plurality of static postures,
the determining includes: determining from a time-series change in the joint information of the competitor, each of the static postures of the competitor in the performance; determining the motion posture corresponding to the combination of the determined static postures; and determining the evaluation item corresponding to the determined motion posture, and
the outputting includes comparing a success condition of the static postures included in the evaluation index of the evaluation item of the motion posture with the static postures determined from the time-series change in the joint information of the competitor, and in response to satisfaction of the success condition of the static postures, outputting that the motion posture is successful.

7. The non-transitory computer-readable recording medium according to claim 6 , wherein
the evaluation index includes a posture condition for success of a skill in a performance such that the posture condition is associated with the evaluation item, and
the evaluating is to evaluate a success or failure of the skill by comparing the condition with a posture of the competitor, the posture being obtained from joint information corresponding to the evaluation item.

8. The non-transitory computer-readable recording medium according to claim 6 , wherein
the evaluation index includes information on a series of ideal joint motions in a predetermined performance such that the information is associated with the evaluation item, and
the evaluating is to evaluate the degree of perfection of the skill, based on how much a series of joint motions of the competitor that is obtained from joint information corresponding to the evaluation item deviates from the series of the ideal joint motions.

9. The non-transitory computer-readable recording medium according to claim 6 , wherein the outputting includes:
receiving a specification of a specific time point in the performance, and

Assignees

• Fujitsu Ltd

Inventors

• Naito Hirohisa
• Matsumoto Tsuyoshi
• Shimizu Satoshi
• Yabuki Akihiko
• Hirano Hideaki

Classifications

• A63B24/0006

  Computerised comparison for qualitative assessment of motion sequences or the course of a movement · CPC title

• A63B2071/0636

  3D visualisation · CPC title

• G06V40/23 Primary

  Recognition of whole body movements, e.g. for sport training · CPC title

• A63B24/0062

  Monitoring athletic performances, e.g. for determining the work of a user on an exercise apparatus, the completed jogging or cycling distance · CPC title

• A63B2024/0071

  Distinction between different activities, movements, or kind of sports performed · CPC title