Information Technology Reference
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where
PSNR
k
is the PSNR of partial frame k. The results for a single encoder using
the conventional method have also been listed for reference. Table 3 shows that the
average PSNR with the proposed method is 0.24 dB higher than that with the fixed
bit-allocation method. The PSNR disparity with the proposed method is 2 dB lower
than that with the conventional method and this is nearly that of the single encoder.
partial frame #1
partial frame #3
partial frame #4
1920
partial frame #2
32
partail
frame #1
partail
frame #2
1080
partail
frame #3
partail
frame #4
31
30
29
28
60
70
80
90
100
110
120
Frame number
Fig. 12
PSNR of partial frames with conventional method. ( sequence : “Church” ).
1920
partial frame #1
partial frame #2
partial frame #3
partial frame #4
32
partail
frame #1
partail
frame #2
partail
frame #4
1080
partail
frame #3
31
30
29
28
60
70
80
90
100
110
120
Frame number
Fig. 13
PSNR of partial frames with proposed method. ( sequence : “Church”).
