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EURASIP Journal on Image and Video Processing

Table 8 The parameters used for training libSVM for feature set HPP [15], TUHPP, DCT136 [11], and TUDCT136 on CIF video dataset

From: HEVC double compression detection under different bitrates based on TU partition type

B1 − B2

(Kbps)

100–200

100–300

100–400

200–300

200–400

300–400

TU-IP(10D)

 c

0.5

2.8284

1

11.3137

8

8

 g

16

16

16

2.8284

2.8284

2.8284

HPP(25D)

 c

2.8284

0.25

2

0.70711

1.4142

4

 g

2

0.5

1.4142

2.8284

1.4142

1

TUHPP(35D)

 c

1

0.25

1

2.8284

0.70711

5.6569

 g

0.70711

0.17678

1.4142

1

0.35355

0.5

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