我們利用位元率和衰減之間的關係對H.264作最佳化的資料分割與應用。傳統上是把某些特定的資料，放置在特定的partition裡。但是固定的分割模式並不能隨著外在環境的影響而調整partition的內容。所以我們利用拉格朗治乘數來分割H.264的資料內容為兩個部份。由於H.264應用了intra 的預測模式作編碼，使得同一張畫面的MB之間彼此有了相關性，尤其是在一張slice的左邊和上面的MB。因此本篇論文利用拉格朗治乘數作資料分割，並且將這些MB放置在partition 0的部份，以完美的通道作傳送。實驗結果顯示，採用拉格朗治及特殊的MB保護方式，約比只用拉格朗治作資料分割的方法，在相同位元率下，都有比較好的PSNR。

We analysize the problem of optimal data partitioning of H.264 coded video in operational rate-distortion context. Traditionally, we partitioned the syntax element to fixed partitions. But fixed partitioning does not fit well with the different network. We try to do adaptive data partition by Lagrange multiplier to partition H.264 encoded bitstream into two partition. Because of intra prediction of H.264, the MBs in a frame has relationship with other MBs in the same frame, especially for the first column and the first row. So we put these MB data to partition 0 which is transmitted on a perfect channel with no losses. On average, the experiment results by the Lagrange multiplier with putting special MBs in partition 0 and Lagrange multiplier, the former is superior at the same bitrate.

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