Airplane Assembly
Description
The complete riveting task for an airplane floater was captured at an aerospace company. The floater is a plane component that enables planes to float when they land on water. Two male subjects participated in the MoCap session. They had an average age of 50±5 years, a height of 170±2 cm, and a weight of 77±1.4 kg.
Collaboration between two operators is essential for this activity. Therefore, their data were collected sequentially; one person wore the MoCap suit to capture their movement while collaborating and then donned it to the second person and continued the activity.
Name convention and segmentation
Riveting of an airplane floater (PLN):
- P01: Rivet with the pneumatic hammer.
- P02: Prepare the pneumatic hammer and grab rivets.
- P03: Place the bucking bar to counteract the incoming rivet.
P01
P02
P03
Metrics
Gesture recognition
| Method | Motion descriptors | Number of classes | Accuracy | F1-score |
|---|---|---|---|---|
| HMMs | Joint angles from all 52 IMUs | 3 | 0.850 | 0.833 |
| HMMs | Joint angles from: RFA and H | 3 | 0.750 | 0.701 |
| HMMs | Joint angles from: RA, LSH1, LSH2,SP3, SP2,LUL,RUL | 3 | 0.915 | 0.901 |
* Hidden Markov Models (HMMs).
Motion generation
| Method | MAE | RMSE | Average U1 |
|---|---|---|---|
| KF-GOM | 3.312 | 17.814 | 0.310 |
| KF-RGOM | 10.946 | 19.127 | 0.210 |
| VAE-RGOM | 0.091 | 0.885 | 0.009 |
| ATT-RGOM | 0.203 | 1.034 | 0.016 |