A Two-Stage Cascaded Detection Scheme for Double HEVC Compression Based on Temporal Inconsistency

Table 5

The detection accuracies with unknown coding parameters (%).

	Recompression with the increased bit rate			Recompression with the decreased bit rate
()kbps	(800, 2500)	(800, 1500)	(1500, 2500)	(2500, 1500)	(1500, 800)	(2500, 800)
GVPF [17]	96.23	95.13	95.66	87.34	81.75	75.62
CNN-LSTM [21]	95.19	94.29	96.37	91.21	87.73	85.03
Proposed	99.33	96.87	97.10	93.58	92.97	90.07