幀間編碼 的英文怎麼說
中文拼音 [zhèngjiānbiānmǎ]
幀間編碼
英文
frame to frame coding- 幀 : 量詞(幅, 用於字畫)
- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 編 : Ⅰ動詞1 (編織) weave; plait; braid 2 (組織; 排列) make a list; arrange in a list; organize; gr...
- 碼 : Ⅰ名詞(表示數目的符號或用具) a sign or object indicating number; code Ⅱ量詞1 (指一件事或一類的...
- 編碼 : encoded; code; coded; encrypt; codogram; coding編碼表 encode table; 編碼程序 builder; 編碼尺 code...
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The motion - based layered compression scheme in this dissertation is different from the traditional full picture - process method, using different encoding strategy by classify marcoblock in temporal motion, a high encoding efficiency is achieved in experiment
本文提出的基於運動的分級壓縮演算法,打破了以往時空伸縮全幀處理的概念,實驗中以塊為單位按時間頻率分等級,分別採用不同的編碼策略,達到較好的編碼效率。For video codec, after analyzing and researching the newest standard h. 264, an efficiency algorithm was proposed in this paper using self - feature, spatial correlation and temporal correlation to judge the encoding mode of one macro - block. through this method, the best prediction mode can be obtain before encoding, then, the coding time can be reduced dramatically with a little expense of bit - rate. for video transmission, in this paper, a transmit method was proposed using tcp / ip protocol under the environment of local networks
首先,在分析及研究最新的視頻編碼標準h . 264的基礎上,利用宏塊自身的特點和其時間、空間的相關性來判斷宏塊應該採用的編碼模式,從而提前得到該宏塊的最佳編碼模式,新方法有效地克服了原標準演算法中窮舉式的復雜演算法,在壓縮碼流只有少許增加的情況下,大幅度地提高了幀內及幀間編碼的速度。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緩存器的佔有率給每幀預分配比特數,然後再根據具體細節給予不同的量化參數。使緩存器得到了更細致的控制,解碼圖像的質量有所改善。針對傳統的視頻圖像編碼方法,即幀內基於dct的編碼加幀間基於運動補償的預測編碼存在不適于低比特率壓縮,編碼器復雜等不足,討論了基於3 - ddct的xyz視頻圖像壓縮編碼方法,提出了3 - ddct系數的三維「 z 」形掃描方案,大大提高了編碼效率。Frame coding or field coding can be adaptively selected on a picture - by - picture basis and also on a more localized basis within a coded frame
幀編碼還是場編碼可以自動選擇,原則上基於圖象與圖象之間的變化,以及編碼圖象內部的局部化特徵。According to the information that reflected the condition of channel, this thesis classified acm into heuristic acm and snr - estimation acm. the system that using the first one of acm decide the scheme of modulation and coding according to the frame error ratio that reflected indirectly the condition of channel, while it using the another of acm decide the scheme according to the snr estimation
根據反映通道狀態的信息不同,本文將自適應編碼調制技術分為基於探索的自適應編碼調制技術和基於通道信噪比預測的自適應編碼調制技術,前者根據間接反映通道條件的誤幀率和重傳次數信息來決定編碼調制方式,而後者根據通道信噪比預測的結果調節編碼調制方案。Although paff can enhance the coding performance, whereas, the time complexity ascends more than twice. in order to reduce time consumption, one - pass fast paff based on motion diction is proposed in this paper
雖然採用paff技術使得編碼性能有所提高,但會導致時間復雜度上升2倍以上,為了降低時間損耗,本文提出了基於運動檢測的one - pass快速幀場自適應演算法。Most of these standards are based on the method of inter - frame motion compensation and two - dimensional discrete cosine transform ( 2d - dct ) and encode and describe the color video in ycbcr 4 : 2 : 0 format, which want to take advantage of human visual system ( hvs ) to save bit expense by decreasing the resolution of two color difference components
當前國際上的壓縮標準普遍採用幀間運動補償加幀內二維離散餘弦變換的編碼方法,並且將彩色視頻序列表示為ycbcr格式,試圖利用人眼的視覺特性降低對色差信號的解析度來節省比特開銷。And the third is solid - state store witch record the stereo picture - pair. this thesis is provided in four chapters. chapter 1 and chapter 2 describe base knowledge, chapter 3 discusses key techniques used in on - board stereo image processing system, and chapter 4 focuses upon the successful application
數據圖像的獲取主要解決如何將像元數據從ccd相機輸出的數據流中提取出來;數據的組幀編碼主要負責將從三個ccd陣列得到的簡單的像元數據恢復成彼此相關的立體像對;而數據的固態存儲則主要探討了大量數據在空間惡劣環境下的固態存儲技術。A inter - frame error concealment algorithm based on motion estimation is proposed in this dissertation, the motion vectors and coding mode can be rebuilt, it can be applied in any frame modes and macroblock modes
本文提出了基於運動估值的幀間預測錯誤隱藏演算法,能對運動矢量和編碼模式的進行有效重建,適應各種情況的幀間錯誤隱藏。For i - frame coding, existing coding standards only take use of information of itself, and for p - frame and b - frame, inter - frame information is used. however, there is still redundancy among those adjacent frames that are coded as i - frame
然而事實上,相鄰多個i幀之間的信息上仍然也存在冗餘,本文的貢獻就在於利用了i幀間的冗餘進行幀間編碼,從而進一步提高了編碼性能。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演算法As to three types of frames in mpeg2, there are two different types of coding method, which are inter - frame coding and intra - frame coding
在程序中,對於三種不同的幀類型(即i 、 p和b ) ,分別採用了幀內編碼和幀間編碼兩種方式。Motion estimate is the key skill in video coding, a way of between frames coding. it bases on the theory of temporal correlation between frames, to reduce temporal redundancy
運動估計是視頻編碼的關鍵技術,它是一種幀間編碼的方法,其最基本的原理是利用幀間的時間相關性,減少時間冗餘度。After a careful study of the standards of itu - t h. 26x series, i developed some new algorithms for motion estimation and intra - frame / inter - frame model selection in h. 263 + image compression encoding, by combination of some up - to - date methods published. in motion estimation, i proposed an algorithm of adaptive selection of 3 - step and 4 - step search
本論文在仔細研究了itu ? th . 26x系列標準的基礎上,綜合應用了新出現的一些演算法,對于h . 263 +圖象壓縮編碼演算法中運動估計和幀內、幀間模式選擇等關鍵部分作了研究。Firstly, it summarized the basic conceptions of image compress processing, parallel processing technique and parallel algorithm briefly. then it emphasized on the network parallel computing environment and logp model of parallel computation. at last, this paper described the methods of developing parallel algorithm and applications through the designing, analyzing, optimizing, and implementing of digital image coding parallel algorithm, include intra - frame coding, inter - frame coding, entropy coding, etc
本文概述了并行處理技術和圖像壓縮技術;並詳述了并行演算法、圖像壓縮演算法的基本概念和模型;著重討論了網路并行logp模型及并行計算的開發環境;並通過fft并行編碼演算法、 dct并行編碼演算法、幀間運動估計和補償的并行演算法、遊程并行編碼演算法等圖像壓縮編碼處理的并行演算法的設計、分析、優化及模擬實現,較全面、形象地展示了并行演算法的開發方法及其應用。In mrme, coding of intra - frame and inter - frame are done in wavelet decomposition domain. mrme costs much less time to perform motion estimation operation compared to block matching motion full search algorithm ( fsa )
該方法可保證幀內、幀間編碼過程始終在小波分解域內進行,運動估計運算量比塊匹配全搜索法小得多。( 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 )幀間預測方式通過對這些主流可分級編碼方法的預測方式進行分析與研究表明這些方法並未能很好地利用視頻序列的幀間信息來進行幀間預測以提高視頻編碼效率,特別是對增強層b類幀的預測。One of the common characters between traditional algorithms based on dct image coding is that regardless of the content of the image, they use a fixed size block to process, for example, jpeg, mpeg - 1 / 2, h. 263 use constant 8 * 8 block mode. the main work of this article is to propose a sequence images compression algorithm that is based on adaptive block dividing and object to the disadvantages of the one based on fixed - size block dividing. the proposed algorithm is an image compression method, which can auto - adjust dct block size ( 8 * 8 or 4 * 4 ) according to the difference of corresponding blocks between two frames of the sequential image and doesn ’ t process any unnecessary data blocks in order to enhance coding efficiency
傳統的基於dct的圖像編碼演算法的一個共同特點就是:不管圖像的具體內容,採用固定的塊尺寸進行統一的處理,例如jpeg , mpeg - 1 / 2 , h . 263均採用固定的8 8分塊方式,本文的重點工作是針對這些採用固定的塊尺寸進行統一處理的演算法的一些缺點,提出了一種基於自適應分塊的序列圖像壓縮演算法,該演算法是一種根據序列圖像兩幀間對應塊的差別自動調整dct變換尺寸( 8 8或4 4 ) ,對不必要的數據塊不進行處理,以提高編碼效率的序列圖像壓縮編碼方法,具有較高的編碼效率和較好的壓縮效果,與傳統的採用8 8固定分塊方式的壓縮編碼演算法相比,性能有較大幅度的提高,在文中,作者對兩者的壓縮編碼性能進行了分析比較。Following is specific work : a novel algorithm for fractal video sequence coding based on the extended quadtree video partition with the circular prediction mapping and the noncontractive mapping is proposed
提出了在擴展的四叉樹視頻壓縮的基礎上,利用環形預測映射和幀間非壓縮映射相結合的視頻序列分形編碼方法。The analysis on the method shows that an advantage of wavelet - based video compression coding is that it offers more graceful image degradation at high compression ratios, and it also eliminates the block artifacts seen in dc compression. and it can solve the contradiction between limited bandwidth and infinitude requirements of increasing customers in present communication system
該系統充分利用人眼的視覺特性來減少幀內和幀間的冗餘信息,能夠消除傳統圖像編碼的方塊效應、蚊子效應等現象實現高壓縮比,高質量的圖像編碼,可較好地解決現行通信系統中有限帶寬與日趨增加的無限用戶需求之間的矛盾。分享友人