Research Article
Video Motion Magnification and Subpixel Edge Detection-Based Full-Field Dynamic Displacement Measurement
Table 3
The natural frequency (Hz) estimation and the relative error.
| | Method | Accelerometer | ConvLSTM | Original video extraction | Proposed method | | Value | Value | Error (%) | Value | Error (%) | Value | Error (%) |
| | The first-order frequency | 7.813 | 7.868 | 0.7 | 7.709 | 1.3 | 7.792 | 0.3 | | The second-order frequency | 15.234 | 16.156 | 6.1 | 15.821 | 3.9 | 15.726 | 3.2 | | The third-order frequency | 22.852 | 23.433 | 2.5 | 23.317 | 2.0 | 23.179 | 1.4 |
|
|
