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148 Chapter 6. Multiple-Reference motion Estimation Techniques
QSIF Akiyo
47
M=1
M=2
46 M=5
M=10
45 M=50
PSNR Y (dB) 43
44
42
41
40
39
38
1 2 3 4
Frame skip
(a) AKIYO
QSIF Foreman
34
M=1
M=2
33 M=5
M=10
M=50
32
PSNR Y (dB) 31
30
29
28
27
26
1 2 3 4
Frame skip
(b) FOREMAN
QSIF Table Tennis
33
M=1
32.5 M=2
M=5
M=10
32 M=50
31.5
PSNR Y (dB) 30.5
31
30
29.5
29
28.5
28
1 2 3 4
Frame skip
(c) TABLE TENNIS
Figure 6.5: Prediction quality of LTM-MCP with di&erent memory sizes and frame skips