TABLE 7. Effect of Feature Dimensionality Reduction on Bleeding Frame Detection Performance.

Reduction	Feature Dim.	Sen. (%)	Spe. (%)	Accu. (%)
Without	4096	98.03%	99.58%	99.28%
With	2048	97.79%	99.52%	99.23%
	1024	97.40%	99.48%	99.06%
	512	97.65%	99.58%	99.19%
	256	97.57%	99.57%	99.19%
	128	97.70%	99.63%	99.23%
	64	97.83%	99.58%	99.23%
	32	97.57%	99.58%	99.19%
	16	97.85%	99.47%	99.15%
	8	97.13%	99.26%	98.81%
	4	91.60%	98.11%	96.89%