Table 4. Feature extraction times. Average times measured with the non-fight videos in the UCF101 dataset, on an Intel Xeon computer with 2 processors at 2.90Ghz.

Method	Features/sequence	Msecs/frame
BoW(MoSIFT)	500	661.5
BoW(STIP)	500	293.5
ViF	96000	454.5
LMP	10368	151.6
Deniz et al. [21]	14	162.4
Variant-v1	2548	22.5
Variant-v2	2940	26.5