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In-Depth Information
Fig. 9. Rate-distor
rtion performance using weighted PSNR of 5 profiles
YUV Weight matrix is {0.7
As shown above, profile
weighted PSNR at any bit
profile 4 are 25% larger tha
7, 0.15, 0.15} for weighted PSNR.
3 and profile 4 outperforms other profiles in terms
trates, while the computation complexity of profile 3
an profile 1 and profile 2
s of
and
3
Evaluation of 4K
2000 and H.264
K Video Compression Using JPEG XR, JPE
EG
For high quality compress
encoding standard, includin
sion for 4K video sequences, we evaluated 3 state-of
ng JPEG XR, JPEG 2000 and H.264.
f-art
Input
5 video sequences (384
shown in Fig. 4.
Original bit-rate is 3840*
0x2160, YUV 444, 8 bits per channel, 30fps) have b
been
*2160*3*8*30 = 5972 Mbps
Output
Bit rate: 60~300Mbps, C
Compression ratio: 1%~5%
Encoding Parameters
JPEG XR
As evaluated in section 2,
complexity:
we chose appropriate parameters in terms of PSNR
and
Tile size: 512x512
Overlap filter: 0 and 1
Trimflexbits: 0
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