Smart-Sleeve: A Wearable Textile Pressure Sensor Array for Human Activity Recognition

. 2022 Feb 22;22(5):1702. doi: 10.3390/s22051702

$F e a t_{1}$ to $F e a t_{4}$ :	Maximum, median, sum, and range (maximum–median).
$F e a t_{5}$ to $F e a t_{8}$ :	Average, variance, mean absolute deviation, and entropy of all pixel values in the pressure image, as defined in [34].