Research Article
Macroblock Layer Rate Control Based on Structural Similarity and Mean Absolute Difference for H.264
Table 2
Average SSIM comparison of the proposed, PRDO, and JM10.1 algorithms (QP = 23).
| Sequence | Target bit rate (kbps) | JM10.1 | PRDO | Proposed |
| Crew | 64 | 0.6032 | 0.6113 | 0.6140 | Carphone | 64 | 0.7851 | 0.7926 | 0.7954 | Highway | 64 | 0.7810 | 0.7879 | 0.7908 | Foreman | 64 | 0.7365 | 0.7468 | 0.7500 | Claire | 64 | 0.7498 | 0.7569 | 0.7597 | Crew | 128 | 0.7495 | 0.7560 | 0.7581 | Carphone | 128 | 0.8252 | 0.8321 | 0.8348 | Highway | 128 | 0.8235 | 0.8341 | 0.8362 | Foreman | 128 | 0.8452 | 0.8515 | 0.8540 | Claire | 128 | 0.8015 | 0.8078 | 0.8107 | Crew | 256 | 0.8634 | 0.8694 | 0.8722 | Carphone | 256 | 0.8853 | 0.8911 | 0.8943 | Highway | 256 | 0.8481 | 0.8544 | 0.8565 | Foreman | 256 | 0.8984 | 0.9025 | 0.9058 | Claire | 256 | 0.8433 | 0.8494 | 0.8519 | Crew | 512 | 0.9249 | 0.9280 | 0.9305 | Carphone | 512 | 0.9105 | 0.9146 | 0.9173 | Highway | 512 | 0.8742 | 0.8787 | 0.8815 | Foreman | 512 | 0.9368 | 0.9402 | 0.8424 | Claire | 512 | 0.8566 | 0.8619 | 0.8648 |
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