[Retracted] Application Research on Roller Skater Detection, Tracking, and Trajectory Prediction Based on Video Stream

Table 4

Domestic and foreign outstanding athletes sprinting stage stride length statistical comparison table (m/s).

	First step	Step 2	Step 3	Step 4	Step 5	Step 6
Domestic athletes	0.42	0.55	0.69	0.93	1.25	1.32
Foreign athletes	0.33	0.46	0.84	1.22	1.38	1.46