Table 1. Comparison of Wearable EOG Devices for Classification of Eye Movements and HMI Applications.
| references | circuit type | form factor (cm × cm) | integrated single device | electrode type | no. of electrodes | no. of classes | classification accuracy (%) | platform | HMI application |
|---|---|---|---|---|---|---|---|---|---|
| this work | flexible | 2 × 3 | yes | dry, membrane (gold) | 4 | 6 | 98.3 | headband with a flexible circuit | two-wheeled RC car |
| (14) | rigid, bulky | 12 × 15 | no | dry (gold) | 5 | 4 | 94 | wire-connection with a circuit | wheel-chair |
| (12) | rigid, bulky | 6 × 6 | no | dry (gold) | 5 | 5 | 92 | wire-connection with a circuit | drone helicopter |
| (43) | rigid, bulky | 4 × 6 | no | dry, (graphene) | 3 | 5 | 98 | headband with rigid circuit | RC car |
| (23) | rigid, bulky | 5.5 × 8 | no | dry, (graphene) | 3 | 2 | headband with rigid circuit | LED array | |
| (44) | rigid, bulky | 6 × 6 | no | dry (Ag/AgCl) | 5 | 4 | eyeglass | ||
| (45) | rigid, bulky | 5 × 5 | no | dry (Ag/AgCl) | 4 | 1 | headband with rigid circuit | ||
| (46) | rigid, bulky | 3 × 20 | no | dry (silver) | 3 | 2 | headband with rigid circuit | ||
| (47) | rigid, bulky | 5 × 7 | no | gel (Ag/AgCl) | 5 | 5 | 75.5 | eyeglass | omnidirectional-robot |
| (48) | rigid, bulky | 4 × 8 | no | gel (Ag/AgCl) | 5 | 5 | 97 | armband | game |
| (49) | rigid, bulky | 11 × 16 | no | gel (Ag/AgCl) | 5 | 5 | 89 | helmet | keyboard |
| (28) | rigid, bulky | 4 × 8 | no | gel (Ag/AgCl) | 4 | 6 | 91.3 | rigid headband | wheelchair + keyboard |