Select options interframe delay and choose how fast you want the images to change 選擇“幀間延遲選項(xiàng)” ,并指定圖像改變的速度。
An embedded wavelet quadtree interframe coding algorithm an embedded wavelet quadtree interframe coding algorithm 一種嵌入式小波四叉樹幀間編碼算法
1993 , 39 : 821 - 834 . 2 vaishampayan v , john s . interframe balanced multiple descriptionvideo compression . in 正是在這種情況下,多描述編碼multiple description coding引起人們的重視。
Interframe superresolution methods exploit this additional information , contained in multiple frames , to reconstruct a high - resolution still image or a sequence o high - resolution images 幀間超分辨率方法利用了這個包含在多幀中的附加信息去重構(gòu)一個高分辨率靜態(tài)圖像或一個高分辨率圖像序列。
Lsp parameters are quantized by multi - stage vq with fourth - order interframe ma prediction . this scheme has little spectrum distortion , even if the two types of speech have many variations of lsp parameters 并對涉及到的語音處理的關(guān)鍵技術(shù),如線性預(yù)測、 lpc與lsp的轉(zhuǎn)換、矢量量化、基音分析等技術(shù)作了深入研究。
In uncompressed domain , we analyse the processing and the normal algorithms of scene change detection . a new algorithm for video abrupt shot change detection based on the relation of the partial interframe differences is proposed in this dissertation 在解壓域,系統(tǒng)地分析了解壓域鏡頭邊界檢測過程和常見的解壓域鏡頭邊界檢測算法,提出了一種新的解壓域鏡頭突變檢測算法:基于局部幀間差相關(guān)性的鏡頭突變檢測法。
A new bit rate control strategy with both global pre - allocation and local segmentation ( glas ) for low bit rate application is proposed . first , it allots bit date to every frame in advance according to possessive rate of buffer , and then distribute different quantization parameters according conctete detail . by means of this method , buffer is controlled more particularly . and the quality of decoded image is improved , the traditional video image coding method , that is to say , the intraframe coding based on dct and the interframe prediction coding based on motion compensation , is not suitable for low bit rate compression and aside from this , the encoder is too complicated 它首先在總體上根據(jù)緩存器的占有率給每幀預(yù)分配比特數(shù),然后再根據(jù)具體細(xì)節(jié)給予不同的量化參數(shù)。使緩存器得到了更細(xì)致的控制,解碼圖像的質(zhì)量有所改善。針對傳統(tǒng)的視頻圖像編碼方法,即幀內(nèi)基于dct的編碼加幀間基于運(yùn)動補(bǔ)償?shù)念A(yù)測編碼存在不適于低比特率壓縮,編碼器復(fù)雜等不足,討論了基于3 - ddct的xyz視頻圖像壓縮編碼方法,提出了3 - ddct系數(shù)的三維“ z ”形掃描方案,大大提高了編碼效率。
( 2 ) interframe prediction model researching on the existing video scalable coding structure and the predict - tion model shows that the information between frames of video sequence was not utilized fully to improve coding efficiency in these coding scheme , especially the prediction of b frame in the enhancement layer ( 2 )幀間預(yù)測方式通過對這些主流可分級編碼方法的預(yù)測方式進(jìn)行分析與研究表明這些方法并未能很好地利用視頻序列的幀間信息來進(jìn)行幀間預(yù)測以提高視頻編碼效率,特別是對增強(qiáng)層b類幀的預(yù)測。
Interframe predictive coding is used to eliminate the large amount of temporal and spatial redundancy that exists in video sequences and helps in compressing them . motion eliminate can help to eliminate these redundancy . different kinds of algorithms use different criteria for comparison of blocks 它采用開放的編碼系統(tǒng)和新一代視頻編碼技術(shù),它在視頻編碼發(fā)展史上第一次把編碼對象從圖像幀拓展到具有實(shí)際意義的任意形狀視頻對象,從而實(shí)現(xiàn)了從基于像素的傳統(tǒng)編碼向基于對象和內(nèi)容的現(xiàn)代編碼的轉(zhuǎn)變。