Segmentation Based Video Steganalysis to Detect Motion Vector Modification

Table 1

Detection accuracies (%) of improved NPELO and improved MVRBR using different number of categories.

Number of categories	Parameter value	Improved NPELO			Improved MVRBR
		Cao’s	Yao’s	Wang’s	Cao’s	Yao’s	Wang’s
1		97.60	98.47	97.16	94.15	98.39	90.21
2		97.86	98.88	97.50	95.50	98.41	91.68
3		98.34	99.70	97.77	96.19	99.24	94.73
4		98.28	99.61	97.93	95.93	99.35	94.64
5		98.44	99.35	97.62	96.62	99.01	94.89
6		98.24	98.61	98.20	96.20	98.61	93.84