The Intel D435i camera is selected to collect the point cloud data of lower limbs,the point cloud data source was 10 subjects including 4 females and 6 males, subjects are informed and voluntary, aged between 23-26 years, with an average age of 24.3 (±1.03) years, height of 172.1 (±6.46) cm, and weight of 71.3 (±9.58 kg.). The subjects were not trained prior to the testThe experimental data from these ten individuals were divided into two parts, half for training the long and short term memory neural network and half for validating the real-time and accuracy of the training model.
In the experiment, participants were asked to perform 16 predefined gesture-motion protocols as shown in Fig. Each participant performed 1 experiment in the order of Fig, performing each movement 2 times with a 1-minute break in between each set of movements. Since the measured sEMG signals were almost harmless to the subjects, they could stop the experiment at any time to prevent any discomfort.