本篇論文使用的編碼方式是把影像分成前景和背景來討論，希望依照壓縮的 需求以不同的編碼方式來達到編碼效率的改善。在此編碼效能之改善為1.前景的 部分PSNR 品質的提升、2.背景的部分減少資料壓縮量與 3.整體壓縮時間減少，
針對這些部分，利用到區塊大小和Rate-Distortion 的參數值設定，的確可以有效 改善前景的畫面品質和背景的資料量。
由於整個H.264 標準的架構非常龐大，可以再分析的部分也很多，如量化參 數、參考畫面數、Entropy 編碼等，都可能繼續應用在前景和背景的壓縮。在本 篇論文，我們都以符合標準的解碼程序來做研究，當然，如果能在標準規定的語 法和語意外來進行編碼，前景和背景分析的結果，應該會有更大的空間發展。
在本論文中亦提出了一個自動切割的方法，從實驗顯示，本方法可以切割出 與攝影機運動不同的物體，比較可能切割錯誤的地方在於畫面中一大片的平滑區 域，造成的原因如 5.3 小節所敘述，乃是因為區塊比對誤差所造成，而使用光流 估測的方法亦會有同樣的缺點，因此區域運動估測與對應點的改善是一個重要的 課題。另外，本論文所提出的方法可以切割出前景與背景兩個區域，考慮其他的 應用下，可以再詳細對不同運動的物體做切割，例如將Mobile 影片中的月曆、
球與火車各自切割，此為後續可研究的方向之一。由於大多數的壓縮標準均以區 塊為壓縮單位，所以以區塊為基礎的切割方法中，可以適用於多數的壓縮標準，
若考慮以MPEG4 之 VOP [8]為壓縮單位，可以考慮使用本論文的方法在切割好 的物體之中，再針對每個物體的輪廓做細部切割。本論文亦可當成其他視訊切割 方法的基礎，例如，只切割一張影像並找出獨立運動的物體當成初始切割，之後 可能使用物體追蹤之方式，繼續對不同的畫面做切割。
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