Analysis Technology of Tennis Sports Match Based on Data Mining and Image Feature Retrieval

Table 5

Comparison of spatial characteristics at the lowest point of the shoulder joint in racket stage.

	Left knee	Right knee	Left hip	Right hip	Left shoulder	Right shoulder	Right elbow	Right wrist
Flat strike	0.74	0.77	1.07	1.13	1.46	1.76	2.06	2.27
Top spin	0.75	0.78	1.06	1.14	1.42	1.78	2.04	2.26
Difference	−0.01	−0.01	0.01	−0.01	0.04	−0.02	0.02	0.01