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Table 4 Experimental results of the algorithm proposed in this paper for 16 × 32 and 32 × 16 CUs compared with VTM4.0-360Lib-9.0 encoder

From: An early CU partition mode decision algorithm in VVC based on variogram for virtual reality 360 degree videos

Class

Sequences

BDBR

(%)

ΔTS(%)

BDWSPSNR

(dB)

8 K

ChairliftRide

0.32

25.75

 − 0.015

GasLamp

0.80

23.28

 − 0.037

Harbor

0.68

24.78

 − 0.032

KiteFlite

0.41

25.48

 − 0.026

SkateboardInLot

0.49

20.59

 − 0.023

Trolley

0.36

22.64

 − 0.022

6 K

Balboa

0.43

20.19

 − 0.024

BranCastle2

0.25

21.16

 − 0.016

Broadway

0.70

20.85

 − 0.040

Landing2

0.38

21.31

 − 0.020

4 K

AerialCity

0.37

23.51

 − 0.013

DrivingInCity

0.47

21.22

 − 0.019

DrivingInCountry

0.26

21.92

 − 0.013

PoleVault

0.28

21.19

 − 0.016

 

Average

0.44

22.42

 − 0.022