Table 2: Recognition accuracy on different number of key poses.

Number Carry Clap Pick Pull Push Sit Stand Throw Walk Wave Average

40.9600.8700.9000.9800.9300.8500.8900.8900.9700.9200.915
50.9100.8600.9100.9700.9200.8400.9000.9100.9800.9300.913
60.9100.8900.9200.9700.9200.9100.8800.8900.9800.9600.923
70.9200.8700.8900.9700.9400.9000.9100.8900.9800.9400.921
80.9000.8600.9000.9900.9200.9000.9200.9000.9800.9400.921