b frame

基本解釋

Gravity Probe B confirmed the frame dragging effect, which is less than 1/10 times as pronounced as the geodetic effect, to 19% precision.
重力探測(cè)器B也證實(shí)了“坐標(biāo)系拖曳效應(yīng)”，精確度不及“短程線效應(yīng)”的1/10，只達(dá)到了19%。
Statistical correlations of the smoothness and consistency in images were used to develop error concealment techniques for I-frame, P-frame, and B-frame MPEG-2.
同時(shí)基于圖像信號(hào)的相關(guān)性、光滑性及一致性的假設(shè)，分別對(duì)MPEG-2的I-幀、P-幀和B-幀圖像提出了相應(yīng)的錯(cuò)誤隱藏技術(shù)。
The proposed method can detect scene boundaries through using various macroblock type of B-frame and P-frame in MPEG video flow in order to realize accurate scene change positioning.
該算法只需要通過(guò)直接抽取MPEG視頻流中的B幀、P幀中的宏塊類型信息，并對(duì)其進(jìn)行計(jì)算就可以檢測(cè)出視頻中存在的鏡頭邊界，從而對(duì)場(chǎng)景變換進(jìn)行精確定位。