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| Content Provider | IET Digital Library |
|---|---|
| Author | Shi, Qinghongya Zhang, Hong Bo Dong, Li Jia Lei, Qing Hsiao, Tsung Chih |
| Abstract | Most existing methods of motion assessment system used the contact sensor, infrared sensor, and depth sensor, and few works provided the solution of digital camera. To solve this problem, the authors propose a new motion assessment system based on light camera. In this work, the motion assessment was regarded as pattern regression problem of skeleton joint trajectory. Firstly, the system uses the camera to capture the image sequences. The pose estimation method is used to obtain body skeleton from image. Secondly, due to the difference of motion frequency of each person, the length of the image sequences is different and the length of each joint trajectory also will be different. Fourier transform is applied to normalise the trajectory and use the coefficients of Fourier transform as the joint trajectory feature. Finally, the regression model is built to assess the motion quality. Some experimental results and discussion on action video data are used to verify the effectiveness of the system. |
| Starting Page | 805 |
| Ending Page | 808 |
| Page Count | 4 |
| Volume Number | 2020 |
| e-ISSN | 20513305 |
| Issue Number | Issue 9, Sep (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2020/9 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2019.1316 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2020-06-24 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Body Skeleton Camera Computer Vision And Image Processing Technique Contact Sensor Depth Sensor Digital Camera Feature Extraction Image Motion Analysis Image Recognition Image Sequence Image Sonsor Infrared Sensor Joint Trajectory Feature Light Camera Motion Estimation Motion Frequency Motion Quality Optical, Image And Video Signal Processing Pattern Regression Problem Pose Estimation Regression Analysis Skeleton Joint Trajectory Video Signal Processing Vision Skeleton Trajectory Based Motion Assessment System |
| Content Type | Text |
| Resource Type | Article |
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