Research Article
H.264 SVC Complexity Reduction Based on Likelihood Mode Decision
Table 4
Simulation results of combined spatial and temporal scalability of various algorithms.
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Sequence | QP | ΔYPSNR (dB) | ΔBit rate (kbps) | ΔTime (%) | BL/EL | Li [5] | Yeh [8] | Kim [9] | Lee [13] | Prop. | Li [5] | Yeh [8] | Kim [9] | Lee [13] | Prop. | Li [5] | Yeh [8] | Kim [9] | Lee [13] | Prop. |
| Bus | 18/22 | −0.004 | −0.046 | −0.092 | −0.183 | −0.028 | 1.665 | 0.797 | 0.510 | 2.802 | 0.788 | 65.56 | 56.76 | 68.54 | 63.67 | 72.12 | 28/32 | −0.003 | −0.037 | −0.074 | −0.149 | −0.109 | 1.072 | 0.205 | −0.053 | 2.209 | 0.196 | 65.85 | 51.56 | 70.33 | 48.32 | 71.91 | 38/42 | −0.002 | −0.030 | −0.059 | −0.118 | −0.060 | 0.934 | −0.529 | −0.041 | 1.475 | −0.538 | 71.02 | 70.41 | 61.98 | 41.23 | 76.53 |
| City | 18/22 | −0.005 | −0.046 | −0.092 | −0.184 | −0.030 | 2.019 | 0.411 | 0.779 | 2.322 | 0.309 | 61.67 | 73.24 | 67.43 | 67.56 | 68.23 | 28/32 | −0.003 | −0.038 | −0.076 | −0.153 | −0.071 | 1.008 | 0.135 | 0.187 | 1.938 | −0.076 | 46.82 | 69.27 | 52.08 | 67.35 | 52.88 | 38/42 | −0.003 | −0.031 | −0.062 | −0.124 | −0.085 | 0.750 | −1.666 | −0.547 | 0.889 | −1.124 | 40.28 | 75.88 | 44.99 | 71.97 | 45.79 |
| Crew | 18/22 | −0.005 | −0.047 | −0.094 | −0.188 | −0.048 | 3.826 | 0.528 | 0.664 | 3.963 | 1.950 | 62.78 | 81.18 | 56.92 | 55.19 | 69.34 | 28/32 | −0.004 | −0.040 | −0.080 | −0.160 | −0.082 | 3.409 | −0.035 | 0.486 | 3.545 | 1.532 | 65.07 | 80.94 | 51.72 | 67.09 | 71.13 | 38/42 | −0.003 | −0.033 | −0.066 | −0.133 | −0.051 | 2.761 | −0.023 | −0.410 | 2.898 | 0.885 | 57.28 | 84.07 | 70.57 | 72.39 | 62.78 |
| Football | 18/22 | −0.006 | −0.046 | −0.092 | −0.183 | −0.001 | 2.549 | 1.959 | 0.425 | 2.686 | 0.673 | 51.16 | 67.27 | 73.40 | 53.16 | 57.72 | 28/32 | −0.005 | −0.037 | −0.073 | −0.146 | −0.048 | 2.372 | 1.541 | 0.459 | 2.509 | 0.495 | 46.46 | 51.92 | 69.43 | 47.96 | 52.52 | 38/42 | −0.003 | −0.029 | −0.057 | −0.114 | −0.073 | 1.475 | 0.894 | −0.564 | 1.612 | −0.401 | 65.86 | 44.83 | 76.04 | 66.81 | 71.37 |
| Foreman | 18/22 | −0.004 | −0.047 | −0.093 | −0.186 | −0.085 | 2.279 | 0.682 | 0.393 | 2.416 | 0.402 | 75.58 | 68.38 | 71.32 | 64.78 | 82.14 | 28/32 | −0.003 | −0.039 | −0.078 | −0.156 | −0.040 | 2.002 | 0.504 | 0.117 | 2.139 | 0.126 | 75.84 | 70.17 | 71.11 | 66.57 | 81.90 | 38/42 | −0.003 | −0.032 | −0.065 | −0.129 | −0.123 | 0.202 | −0.392 | −1.684 | 0.338 | −1.675 | 79.53 | 61.82 | 75.73 | 58.22 | 85.03 |
| Harbour | 18/22 | −0.006 | −0.046 | −0.091 | −0.182 | −0.003 | 2.417 | 0.449 | 0.431 | 2.453 | 0.440 | 53.19 | 58.79 | 58.95 | 69.64 | 59.75 | 28/32 | −0.005 | −0.037 | −0.073 | −0.147 | −0.046 | 2.006 | 0.189 | 0.171 | 2.193 | 0.180 | 65.59 | 70.69 | 70.85 | 65.67 | 71.65 | 38/42 | −0.004 | −0.029 | −0.059 | −0.118 | −0.073 | 1.201 | −0.653 | −0.671 | 1.351 | −0.662 | 71.45 | 75.99 | 76.15 | 72.28 | 76.95 |
| Mobile | 18/22 | 0.000 | −0.046 | −0.091 | −0.182 | 0.001 | 1.395 | 0.318 | 0.300 | 2.532 | 0.519 | 43.27 | 71.16 | 49.03 | 77.58 | 49.83 | 28/32 | 0.000 | −0.037 | −0.073 | −0.147 | −0.027 | 0.832 | −0.067 | −0.085 | 1.969 | −0.044 | 44.37 | 70.95 | 49.63 | 77.34 | 50.43 | 38/42 | 0.000 | −0.029 | −0.058 | −0.116 | −0.091 | 0.084 | −1.115 | −1.133 | 1.981 | −0.032 | 42.85 | 75.57 | 47.55 | 80.47 | 48.35 |
| Soccer | 18/22 | −0.004 | −0.046 | −0.092 | −0.184 | −0.032 | 4.311 | 0.443 | 1.941 | 2.448 | 0.434 | 67.64 | 48.87 | 81.34 | 45.27 | 74.20 | 28/32 | −0.004 | −0.038 | −0.076 | −0.152 | −0.041 | 3.344 | 0.477 | 1.523 | 2.481 | 0.468 | 64.17 | 49.47 | 81.10 | 45.87 | 70.23 | 38/42 | −0.003 | −0.031 | −0.063 | −0.125 | −0.079 | 2.321 | −0.546 | 0.876 | 1.458 | −0.555 | 71.33 | 47.39 | 84.23 | 43.79 | 76.84 |
| Average | 18/22 | −0.004 | −0.046 | −0.092 | −0.184 | −0.028 | 2.558 | 0.698 | 0.680 | 2.703 | 0.689 | 60.10 | 65.70 | 65.86 | 62.10 | 66.67 | 28/32 | −0.003 | −0.038 | −0.076 | −0.151 | −0.058 | 2.006 | 0.369 | 0.351 | 2.373 | 0.360 | 59.27 | 64.37 | 64.53 | 60.77 | 65.33 | 38/42 | −0.003 | −0.031 | −0.061 | −0.122 | −0.079 | 1.216 | −0.504 | −0.522 | 1.500 | −0.513 | 62.45 | 67.00 | 67.16 | 63.40 | 67.96 |
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