表 4. Spearman rank correlation coefficients (%) of comparison results with representative multimodal fusion methods.

与代表性多模态融合方法对比的斯皮尔曼等级相关系数（%）

融合方法	融合模态				PD4T				PRAXIS
	RGB	光流模态	骨骼模态		Finger	Hand	Avg.		CAI	APC	Avg.
特征拼接	√	√	√		43.01	61.68	52.35		44.17	79.08	61.63
特征相加	√	√	√		49.63	54.59	52.11		42.67	77.81	60.24
特征相乘	√	√	√		53.46	58.77	56.12		44.13	79.13	61.63
CMBS[26]	√	√			58.45	56.46	57.46		35.41	76.77	56.09
CMBS[26]	√		√		48.77	57.82	53.30		30.86	76.87	53.87
MSAF[27]	√	√	√		53.50	62.59	58.05		40.31	75.62	57.97
UMT[28]	√	√	√		46.17	61.59	53.88		41.75	74.00	57.88
PAMFN[29]	√	√	√		57.65	60.82	59.24		43.97	81.68	62.83
本文方法	√	√	√		58.61	64.34	61.48		44.56	81.81	63.19