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A method for evaluating the fitness of motion imitation

An evaluation method and a technology of fitting degree, which are applied in the fields of anthropometric measurement and human-computer interaction, and can solve problems such as the evaluation of human body movement fitting degree

Active Publication Date: 2021-04-09
中国人民解放军总医院第六医学中心 +1
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Problems solved by technology

[0010] In order to overcome the deficiencies of the prior art and solve the problem of human-computer interaction training and entertainment fitness evaluation, the present invention proposes a motion imitation fitting evaluation method, which can not only be used for real-time fitting evaluation, but also For overall goodness of fit evaluation

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  • A method for evaluating the fitness of motion imitation
  • A method for evaluating the fitness of motion imitation
  • A method for evaluating the fitness of motion imitation

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Embodiment Construction

[0060] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0061] The action imitation fitting evaluation method of the present invention comprises steps:

[0062] (1) Using a motion capture device to obtain the limb position data or bone joint data of the demonstrator and the imitator. In this embodiment, the FOHEART C1 system is used to collect the body movement data of the demonstrator, the FOHEART C1 device is used to acquire the demonstration movement data of the demonstrator, and the Kinect somatosensory device is used to acquire the body movement data of the imitator. Store the collected demonstrator action data as human body action data files (this example uses FBX data format files), and use the virtual reality application program development engine to build an interactive training interface (here, the example uses Unity), forming a such as figure 1 The action interactive learning interface s...

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Abstract

The invention discloses a method for evaluating the fitting degree of motion imitation, which uses the unit vectors of each limb of the human body to describe the posture of the human body. Fitting calculation, obtains the posture of the imitator closest to the demonstrator, avoids the comparison error caused by the delay of the imitator and the demonstrator, and is closer to the actual situation of the imitator following the demonstrator in the action interaction training, and the processing effect is better than DTW algorithm. By introducing a time difference exponential decay function, the present invention takes into account the time difference between the poses of the demonstrator and the poses of the imitator, and makes up for the calculation error of fitting degree that may be caused by the comparison of multiple poses of the imitator. It can be used for the fitness evaluation of long-term continuous actions, and can evaluate and display the fitness in real time. Through the comparison of the fit curve and the key frame of the demonstrator, it can guide the imitator to improve the training effect in a targeted manner.

Description

technical field [0001] The invention belongs to the technical field of anthropometry and human-computer interaction, and in particular relates to an evaluation method for the similarity degree of body movement postures. Background technique [0002] Human-computer interaction technology has been used in various training and entertainment. Provide guidance to the learners and imitators through the actual demonstrator video or the movement of the three-dimensional human body model of the demonstrator; obtain the limb data of the learners and imitators through measurement, and evaluate the learning and imitation effects and achievements. This technology has been applied in various training and entertainment occasions, such as sports training, skill movement training, interactive games and so on. Among them, there are many ways to measure the body movements of the learner and the imitator, and the position and direction information of the body of the measured person can be obta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06F3/01
Inventor 李鸣皋徐建中杨业兵江道远
Owner 中国人民解放军总医院第六医学中心
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