Video results

Video compression performance are presented on the entire JVET test sequences. PSNR in the YUV420 domain are obtained as follows:

\[\mathrm{PSNR_{YUV420}} = -10 \log_{10} \left(\frac{4\mathrm{MSE}_Y + \mathrm{MSE}_U + \mathrm{MSE}_V}{6}\right).\]

Random-access compression

The following table sums up the compression performance obtained by Cool-chic 4.0 against several conventional codecs in a random access configuration settings. An intra period of 32 frames is used. Results are measure through BD-rates which represents the relative rate required for Cool-chic to obtain the same quality than some other codec.

Sequence	BD-rate of Cool-chic 4.1.0 against [%]				Decoding complexity
	HEVC (HM 16)	HEVC (x265-medium)	AVC (x264-medium)	Cool-chic 4.0	MAC / pixel	Frame rate [fps]
C-BasketballDrill	+30.8	-5.2	-29.5	-17.5	639	13.3
C-BQMall	+77.1	+16.6	-6.0	-21.1	639	13.2
C-PartyScene	+28.3	-15.1	-39.2	-39.1	639	12.9
C-RaceHorses	+79.6	+17.4	+8.6	-16.8	639	12.1
Average	+54.0	+3.4	-14.0	-23.6	639	12.9

Decoding time are obtained on a single CPU core of an AMD EPYC 7282 2.8 GHz Processor.

Rate-distortion graphs

C-BasketballDrill

C-BQMall

C-PartyScene

C-RaceHorses