Fig. 3From: Enhancing automated lower limb rehabilitation exercise task recognition through multi-sensor data fusion in tele-rehabilitationSchematic representation of the 3D Inception module. The activation function, Rectified Linear Unit (ReLU), introduces non-linearity to the model. This non-linearity makes the model capable of learning complex spatio-temporal patterns from the video data, in light of the presence of 3D convolutionsBack to article page