Table 4 Comparison between Nanjappan et al. and Speicher et al. studies and our work
| Â | Number of subjects | Number of tasks | Interactive technology | Development method | Speed (s) | Error counts |
|---|---|---|---|---|---|---|
Speicher et al. [4] | 16 | 1 | Handle controller | Expert-defined | 16.94 (beam) 17.61 (grab) | 0 (sphere) 0.24 (basket) |
Nanjappan et al. [11] | 12 | 17 | Handle controller | User-defined | N/A | N/A |
Our work | 30 | 10 | Freehand gestures | User-defined | 31.9 (gesture) 30.1(virtual handle controller) 36.4 (ray-casting) | 0.4 (gesture) 0.5 (virtual handle controller) 0.4 (ray-casting) |