常見例句The CBC (Context-dependent Bitplane Coding) for AVS audio is studied.The characteristics of CBC are analyzed. 摘要研究了AVS音頻編碼標準中上下文位平麪編碼算法,分析了編碼算法的特點。It encodes the bitplane of spatial domain image byquadtree encoded, shuffles and selectively encrypts the data according to the structure of quadtree encoding. 對空域圖像位平麪採用四叉樹編碼,根據四叉樹編碼的結搆特點對數據進行置亂和選擇加密,對加密算法進行加密數據量分析和安全性評估。By implementing the interlaced lifting of bitplane, the relative quality of the ROI and the background becomes adjustable without transmitting any mask information. 位平麪提陞時,採用交錯提陞方法,在不需傳輸掩模的情況下實現感興趣區(qū)域與背景的相對質量可調;partial significant bitplane shift (PSBShift) 部分重要位平麪平移法Generalized partial bitplane shift methods 通用部分位平麪偏移方法context-dependent bitplane coding 上下文位平麪編碼 返回 bitplane