1. Progress report
2014/11/21

2. Brief recap Exp4 : single frame RD performance Set up
Use original CN parameter calculation between bicubic FR frame and SRCNN SI
Yet concern key frame loss, use smallest QP in 264 to estimate key frame rate
rate, PSNR
Golden
CIF
Transform,
Quantization
C.C.
encode
C.C.
decode
SI generation
CN modeling
Golden
CIF
Bicubic
decimation
Bicubic
interpolation

3. Evaluation terms PSNR : [dB] Rate : [kbytes] DISCOVER architecture
Frame num =
key WZ
PSNR : [dB]
DISCOVER architecture
WZ frame
Multi-Resolution architecture
Average over 2 WZ frame
Rate : [kbytes]
WZ rate + key rate ( key rate from H.264 QP = 15 )
2 WZ rate + 2 Key rate

5. Avg key rate %
QP mat 0
QP mat 1
QP mat 2
QP mat 3
QP mat 4
QP mat 5
QP mat 6
QP mat 7
DISCOVER
97.63
97.25
96.7
94.85
94.37
92.58
90.78
84.63
MRDVC
93.15
92.85
90.36
80.85
79.62
73.28
67.83
53.70

7. Avg key rate %
QP mat 0
QP mat 1
QP mat 2
QP mat 3
QP mat 4
QP mat 5
QP mat 6
QP mat 7
DISCOVER
97.58
96.87
96.35
94.19
93.76
91.66
88.48
80.12
MRDVC
94.25
94.04
92.17
85.73
84.29
79.10
71.83
55.38

9. Avg key rate %
QP mat 0
QP mat 1
QP mat 2
QP mat 3
QP mat 4
QP mat 5
QP mat 6
QP mat 7
DISCOVER
98.14
97.75
97.27
95.16
94.69
92.84
89.45
80.40
MRDVC
94.55
94.06
92.29
84.60
83.19
76.48
67.86
48.63

11. Avg key rate %
QP mat 0
QP mat 1
QP mat 2
QP mat 3
QP mat 4
QP mat 5
QP mat 6
QP mat 7
DISCOVER
95.33
93.98
93.30
89.56
88.88
86.02
80.94
70.36
MRDVC
93.68
91.21
83.54
81.67
76.46
67.61
49.31

12. Small conclusion Higher QP matrix is more reliable
real key QP setting decay less
Having potential to outperform DISCOVER structure in high motion

13. Conventional intra coder
Next step
Key quantization loss & corresponding RD performance
Time consuming
Yet improving CN model parameter calculation
Coding structure selection
Label potential frame # in exp4 as ground truth
Prefer no DCT here
Cause MRDVC cannot reuse the result ,only DISCOVER structure can
Besides, MRDVC requires resampling computing
CN model improving ? ……
camera
Conventional intra coder + -
Quantization
DCT
CMS
Skip
Entropy coding
Channel coding
Key bitstream
WZ bitstream
Coding
structure
selection

14. Something about resampling process
Down sampling
Bicubic
“antialiasing”
Up sampling