Before revision:  In this paper, we propose a vision-based human arm gesture recognition model based on the 1-2 regularization, which is solved by the alternating direction method of multipliers (ADMM). Numerical experiments on realistic data sets have shown the effectiveness of this method in identifying arm gestures.
After revision:  In this paper, we propose a vision-based human arm gesture recognition model based on the 1-2 regularization, which is solved by the alternating direction method of multipliers (ADMM). Numerical experiments on binary and gray-scale data sets have shown the effectiveness of this method in identifying arm gestures.