Human Activity Recognition Using Gaussian Mixture Hidden Conditional Random Fields

Table 7

Classification results of the proposed system on UCF sports dataset (A) using ANN, (B) using SVM, (C) using HMM, and (D) using existing HCRF [30], while removing the proposed HCRF model (unit: %).

Activities	Diving	GS	Kicking	Lifting	HBR	Run	Skating	BS	Walk
(A)
Diving	68	4	2	5	6	6	4	3	2
GS	2	71	2	4	5	4	6	3	3
Kicking	3	4	70	3	5	4	2	3	6
Lifting	5	4	3	65	5	6	4	6	2
HBR	3	4	6	3	66	4	5	5	4
Running	3	3	5	4	6	64	6	4	5
Skating	2	5	4	5	3	4	69	3	5
BS	4	2	5	3	4	6	5	67	4
Walking	5	4	2	3	4	3	6	3	70
Average	67.78
(B)
Diving	71	4	2	3	5	6	3	2	4
GS	3	77	2	4	3	2	5	2	2
Kicking	4	2	74	4	5	3	2	3	3
Lifting	5	6	3	69	4	3	5	3	2
HBR	2	3	3	2	80	2	4	2	2
Running	2	3	2	2	5	75	6	2	3
Skating	2	1	2	3	4	4	78	2	4
BS	3	4	6	3	4	2	3	70	5
Walking	4	1	2	4	2	3	0	3	81
Average	75.00
(C)
Diving	79	3	2	2	3	4	3	2	2
GS	0	83	2	4	3	2	1	3	2
Kicking	1	2	85	1	3	3	2	3	0
Lifting	3	0	2	82	3	2	4	2	2
HBR	0	2	2	4	80	0	5	3	4
Running	1	2	1	3	4	84	2	1	2
Skating	2	0	3	4	0	1	86	3	1
BS	1	1	1	2	0	3	0	88	4
Walking	1	2	4	2	5	2	4	3	77
Average	82.67
(D)
Diving	90	3	0	1	0	2	2	1	1
GS	3	84	2	1	3	1	3	2	1
Kicking	3	4	85	0	0	2	3	1	2
Lifting	1	2	1	89	1	1	1	2	2
HBR	0	2	1	0	91	2	3	0	1
Running	2	3	1	2	3	80	4	2	3
Skating	2	4	1	2	3	0	84	4	0
BS	2	1	1	2	1	0	3	88	2
Walking	0	2	1	1	0	1	4	0	91
Average	86.89

GS: golf swinging, HBR: horseback riding, BS: baseball swinging.