Keyphrases
- wearable devices
- physical activity
- cellular phone
- field effect transistors
- positive and negative
- activity recognition
- input device
- sensor networks
- human computer interaction
- ambient intelligence
- ubiquitous computing
- portable devices
- gesture recognition
- low cost
- inertial sensors
- semiconductor devices
- video camera
- high density
- neural network
- augmented reality
- hidden markov models