運動估算量 的英文怎麼說

中文拼音 [yùndònggūsuànliáng]
運動估算量 英文
motion estimator
  • 運 : Ⅰ動詞1 （物體位置不斷變化） move; revolve 2 （搬運; 運輸） carry; transport 3 （運用） use; wield...
  • 估 : 估構詞成分。
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 運動 : 運動[舊時用語] arrange things or get things done through pull
  • 估算 : estimate; reckon （up）
  1. Experiments show that the efficient motion estimation algorithm proposed can further reduce block matching distortion computations relative to conventional fast motion estimation algorithms with neglectable coding efficiency loss ( within 0. 1db )

    提出一種基於節點模型的可變形塊匹配運動估計演算法來搜索最佳運動矢量。實驗表明，在編碼性能損失很小的條件下，可以使得運動搜索塊匹配的運算量在通常快速運動搜索演算法的基礎上下降61 % 。
  2. Researched four technology of structure conversion about digital video, de - interlaced, frame ratio down or up, row ration down or up, the width and high transforming, implemented lots of corresponding arithmetic of four techniques, motion compensate structure conversion method based on the motion estimating improved the image sequence definition and liquidity degree

    4研究了數字視頻結構變換的四種技術：去隔行技術，變頻技術，行頻轉換技術，寬高比變換技術。實驗驗證了大量的相關演算法，其中基於運動估計的運動補償結構轉換方法，清晰度和流暢度得到了很大的提高。
  3. We propose an algorithm, which integrate the shift invariance of redundant discrete wavelet transformation ( rdwt ) and the flexibility of multi - resolution motion estimation, to overcome the shift variance of dwt and get the precise motion vector. under the different code parameter, we take the proposed algorithm compared to several present algorithms, and experiment results have shown that proposed algorithm could leave less energy in the residual frames, get more precise motion vector and better reconstructed frames

    文章最後在不同的編碼參數下，將所提演算法與兩種傳統小波域運動估計演算法作比較，根據實驗所得數據分析，發現所提演算法在性能上要優于另外幾種演算法，具體體現在運動估計后所得殘差幀能量更小，重構幀客觀與主觀質量更高。
  4. To reduce the runtime of the software, fast algorithms are adopted in the motion estimation and dct modules. moreover, this paper introduces early detection of zero motion vector and all zero coefficients to optimize the coding process

    為了提高軟體運行速度，對運算時間較長的運動估計和dct模塊採用快速演算法，並對編碼過程進行優化，採用了零運動矢量和零系數提前判決的方法，節省了很大一部分塊匹配搜索和dct運算時間。
  5. From angiographic images of two approximately orthogonal views, 3d reconstruction and motion estimation of arterial skeletons are acquired

    首先對由兩個角度的造影圖像重建得到的三維血管骨架進行運動估計，計算出兩個時刻間骨架上各點的三維運動向量。
  6. This paper research the mpeg - 4 standard first and realize the encoder and decoder of video of mpeg - 4. then the paper emphasize two key techniques in mpeg - 4 encoder : motion estimation and sprite encode. motion estimation takes the largest time in all parts of mpeg - 4 encoder. the paper concluded some typical me techniques, research and realize the mvfast arithmetic whice is recommend by iso, then improved mvfast by considering the temporal candidate motion vector and adjustal thresholds

    然後，本論文重點研究了mpeg - 4編碼過程中兩項關鍵技術：運動估計和背景圖像編碼。運動估計是編碼過程中最重要，耗時最長的部分。本論文總結了常見的運動估計演算法，深入研究並實現了iso推薦的運動估計優化演算法mvfast ，在此基礎上，引入了時間參考運動向量和可調的門限參考值，對mvfast演算法進行了改進。
  7. As a straightforward method, the full search algorithm ( fs ) is widely used because of its high performance. usually, fs is computationally expensive in a video encoder. as a result, in order to reduce the heavy computational load of fs, active research has focused on fast bmas for a long time and several sub - optimal search algorithms for block - based motion estimation have been developed. these include : three step search ( tss ), four step search ( fss ), two - d logarithmic search, orthogonal search, cross search, etc

    目前塊匹配運動估計演算法有很多，如全搜索法、三步法、共軛方向搜索法、二維對數搜索法、交叉搜索法、鉆石搜索法以及四步搜索法等，它們各有優缺點，全搜索法精度高，但計算量大，三步搜索法和交叉搜索法搜索速度較快，但搜索誤差較大，容易陷入局部最小值。
  8. Secondly we analyze the process of motion estimation and compensation. we use nearest - neighbors search ( nns ) algorithm, instead of full search algorithm, to reduce search times with little degradation. we use sad as block match function, due to the appropriate computation and easy hardware implementation

    其次分析了運動估計與補償過程，採用最鄰搜索作為搜索策略，在搜索質量下降很少的前提下，大大減少了搜索次數；採用適于硬體實現且計算量適中的sad作為塊匹配準則函數。
  9. 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。
  10. On condition that quality of picture restructured is insured, with a view to the motion estimation algorithms that costs the longest coding time, the method of prejudgment of zero motion vector is adopted in this paper, which makes about 50 percent motion estimation computation left out, so the encoding speed of encoder can be further increased

    為了解決質量和實時性的矛盾，本方案在保證質量的前提下，針對運算時間較長的運動估計模塊，給出了零運動矢量提前判斷的方法，從而省去了約50的匹配塊搜索運算，提高了h
  11. Afterwards, the simulation of the frequently - used search algorithms will be undertaken, for instance, three step search algorithm, four step search algorithm, new three step search algorithm, diamond search algorithm etc. after the comparison between those search algorithms in terms of accurateness of search and complexity metrics of calculation, it is shown that the diamond search algorithm has the best performance

    主要內容有:首先，從mpeg - 4視頻編碼的核心模塊運動估計入手，對常用的四種搜索演算法進行了模擬，從搜索準確度和計算復雜度兩方面給出對比結果。優化了菱形搜索演算法的搜索流程，避免了重復計算。 sad計算時採用提前退出策略，減小了計算量而沒有損失搜索準確度。
  12. But now, mpeg2 ' s compressing and decompressing algorithms and mechanism is inviable to mapc - ca ' s architecture, the hardware can not efficiently work. aim at these mostly questions of mpeg2 ' s real - time handling, mpeg2 ' s video coding and decoding system based on map - ca have been implemented. mpeg2 ' s key algorithms have been improved

    針對mpeg2實時處理中面臨的主要問題，課題基於mapca實現了mpeg2實時編碼解碼系統；改進了mpeg2關鍵演算法，提出了新的實現方法，如量化反量化演算法， dct變換idct變換演算法，運動估計演算法等；利用datastreamerdma控制器進行數據傳輸，最大限度地減少數據等待時間。
  13. H. 264 iso iec 14496 - 10 avc. itu - t sg16 q. 6 vceg and iso iec jtc 1 sc 29 wg 11 mpeg, jvt - g050r1, may 2003, pattaya. 3 li r, zeng b, liou m l. a new three - step search algorithm for block motion estimation

    為了降低運動估計的復雜度，研究者們已經提出了很多方法，例如三步搜索演算法，基於塊的梯度下降演算法，鉆石型搜索演算法，六邊形搜索演算法，這些演算法都基於這樣一個假設:離起始搜索點越近，越有可能搜索到最佳運動矢量。
  14. 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。
  15. This paper emphatically researches some typical search algorithms based on block matching of motion estimation, such as 155, fss, tdl, cs and ds. aimed at questions existing in these algorithms, under the elicitation of man vision system, the author designs a new integrative pattem ( sdp ) ftom the bionic view, which shows a parallel processing idea of coarse location and accurate orientation, and then presents a new square - diamond search ( sds ) algorithm for block matching motion estimation. the results of experiment prove that not only the new sos is much faster than above traditional algorithms, but also its psnr and visual quality of the retrieval images are better than those of other algorithms, and as nearly good as that of fs

    本文重點研究了三步法（ tss ） 、四步法（ fss ） 、二維對數法（ tdl ） 、交叉法（ cs ）和菱形法（ ds ）等經典的基於塊匹配的運動估值演算法；針對它們存在的問題，在人眼視覺系統的啟發下，從仿生學的角度設計了一種新的綜合模板（ sdp ） ，它體現了粗定位和準確定位并行處理的思想，在此基礎上提出了一種新的用於塊匹配的搜索演算法?正方形?菱形搜索（ sds ）演算法；實驗證明：該演算法的搜索速度比fs 、 tss 、 fss 、 tdl 、 cs和ds都快，而且根據運動矢量恢復出的圖像在psnr和主觀視覺效果方面都和fs相當，比其它演算法要好。
  16. In this paper, two important modifications in dct - based coding algorithm are suggested after making deep study on the generally used scheme of h. 263 coder. first, we find plenty of invalid computation in the transformation part of the h. 263 coder and an improved scheme based on the pre - transform decision to avoid invalid computation is proposed. second, in the motion estimation part of the coder, we find that normal search algorithms are not effective, which neglects different levels of motion in image sequences, and we suggest a new search algorithm which has variable search region based on the difference of motion level. combining the pre - transform decision scheme with variable search region method in motion estimation, a global decision coding scheme is provided, which greatly increases the coding speed of h. 263 coder

    本文對h . 263編碼演算法的現有實現方法作了深入的分析，首先發現變換部分存在大量無效運算，提出了在變換前加判決的前變換判決的編碼方案，以壓縮無效的變換運算；其次發現運動估計部分由於忽略了圖像場景的分級運動而存在一定的無效搜索運算，提出了基於分級運動的可變搜索域法來壓縮無效的搜索運算；最後將前變換判決方案與運動估計的可變搜索域法有機地結合在一起，提出了全局判決編碼方案，從而比較全面地改進了現有實現方法，因而能大幅度地提高編碼器的編碼速度
  17. Therefore, real time video encoding has become a hot research field. as the main part, motion estimation accounts for about 50 to 80 percent of the whole encoding computation, so it is the most challenging research topic in video encoding

    實時視頻編解碼技術成為研究的熱點，運動估計在視頻編碼中佔有50 80的運算量，從而成為這一領域最有挑戰性的研究課題。
  18. After investigating scores of algorithms, analyzing the characteristics of video sequences, the distribution of motion vector and pertinence, this article has summarized all the algorithms completely

    本文在深入研究了現有的快速運動估計演算法，了解了運動矢量和塊失真度的分佈規律及其相關性，對演算法進行了較全面的總結。
  19. Block motion estimation using full search is computationally intensive, many fast algorithm have proposed to reduce the computation at the expense of less accuracy of motion estimation. in this paper, we present a new fast and efficient search algorithm for block motion estimation. the proposed algorithm is based on the ideas of predicted starting search point, subsampled block distortion measure, center - biased distribution of motion vector, multiple - candidate diamond search. from the experimental results, the proposed algorithm is superior to many other well - known fast algorithms in both quality performance and computational complexity

    演算法採用多步搜索方法，利用相鄰塊之間的運動相關性，選擇反映當前塊運動趨勢的預測點作為初始搜索點用子采樣塊匹配失真度量來減少計算量利用運動矢量的中心傾向的分佈特性，用多侯選點鉆石形狀搜索方法來提高運動估計的速度和準確性。
  20. In chapters optimization methods is depicted in detail on tm1300 and some optimization methods are introduced. and in chapter6 i will introduce the system implement and its performance

    第五章將重點介紹基於tm1300的優化方法，對運動估計， dct和量化的演算法優化以及指令級的優化進行了介紹。
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