Table  3.

MPJPE comparison per action on 8 activities of CMU MoCap. The best result is highlighted in boldface, and the second is underlined.

	Basketball					Basketball signal					Directing traffic
Milliseconds (ms)	80	160	320	400	1,000	80	160	320	400	1,000	80	160	320	400	1,000
DMGNN [10]	15.6	28.7	59.0	73.1	138.6	5.0	9.3	20.2	26.2	52.0	10.2	20.9	41.6	52.3	111.2
LTD [9]	11.7	21.3	41.0	50.8	98.0	3.3	6.3	13.6	18.0	54.0	6.9	13.7	30.3	40.0	114.2
MSR [43]	10.3	18.9	37.7	47.0	87.0	3.0	5.7	12.4	16.3	47.9	5.9	12.1	28.4	38.0	111.0
PGBIG [3]	9.5	17.5	35.3	44.2	84.1	2.7	4.9	10.8	14.6	50.2	4.8	9.8	23.6	32.3	102.3
H-DHGCN	10.2	17.4	34.8	43.7	83.4	3.1	5.1	10.7	14.0	47.8	5.5	10.7	21.4	31.6	102.1
	Jumping					Running					Soccer
Milliseconds (ms)	80	160	320	400	1,000	80	160	320	400	1,000	80	160	320	400	1,000
DMGNN [10]	32.0	54.3	96.7	119.9	224.6	14.9	25.3	52.2	65.4	111.9	9.6	15.5	26.0	30.4	67.0
LTD [9]	17.2	32.4	60.1	72.6	127.4	13.3	24.0	43.8	53.2	108.3	6.6	10.7	17.4	20.4	34.4
MSR [43]	15.0	28.7	55.9	69.1	124.8	10.9	19.5	37.1	46.4	99.3	6.3	10.3	17.6	21.1	39.7
PGBIG [3]	13.9	27.8	55.8	69.0	125.6	11.1	20.6	39.5	48.7	99.0	6.2	10.3	16.8	19.8	33.9
H-DHGCN	11.7	28.4	54.7	68.3	124.5	11.3	20.4	37.5	45.6	96.4	6.2	10.6	16.7	20.7	33.5
	Walking					Wash window
Milliseconds (ms)	80	160	320	400	1,000	80	160	320	400	1,000
DMGNN [10]	7.9	14.7	33.3	44.2	82.8	13.6	24.1	47.0	58.8	112.6
LTD [9]	6.0	11.6	24.8	31.6	67.0	9.3	17.1	33.0	40.9	86.2
MSR [43]	5.5	11.1	25.1	32.5	71.3	8.1	15.2	30.6	38.6	83.0
PGBIG [3]	4.6	9.2	20.9	27.3	65.7	7.6	14.3	29.0	36.6	80.1
H-DHGCN	4.7	9.1	19.4	26.7	65.2	7.7	13.5	26.3	35.8	77.3