efficient coding 中文意思是什麼

efficient coding 解釋
高效編碼
  • efficient : adj. 1. 有效的，有力的；效率高的。2. 有實力的；有能力的，有本領的；能勝任的。adv. -ly
  • coding : n. 編碼；譯成電碼。
  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. The first facet is to put forward four - step block matching algorithm which can deduce the time of motion estimation and improve the coding efficiency, based on the traditional motion estimation algorithms. the second facet is to propose a new rate control algorithm, that is average - reaction rate control algorithm, based on the rate control of mpeg2. the new rate control algorithm can achieve rapid and efficient adaptive coding

    首先在對傳統的運動估計演算法進行研究和改進的基礎上，提出了四步搜索塊匹配的運動估計演算法，減少了運動估計的時間，提高了編碼效率；其次在分析mpeg2比特率控制的基礎上，提出了一種新的比特率控制演算法? ?平均響應比特率控制演算法，該演算法能夠快速有效的實現自適應編碼。
  3. Cascaded low - density erasure codes are based on sparse random bipartite graphs. very efficient linear time encoding and erasure recover algorithms with the arbitrarily near erasure channel capacity performance of the codes with respect to the algorithms have made them one of the most optimal coding techniques up to now

    基於稀疏隨機二部圖的級聯型低密度糾刪碼因其線性時間的編譯碼演算法和可任意逼近刪除通道容量限而成為目前最佳編碼技術之一。
  4. Thus the coding of a color head image actually become the coding of a color component. the experimental results show this method not only improve the coding efficient and compression ratio but also obtain satisfactory effect of the reconstructed image. at the same time, this method also enables gray head images to be converted into color head images

    這樣對彩色人頭圖象的編碼實質上就變成了對其中的一個色彩分量的編碼，實驗結果表明該方法不僅提高了編碼效率和壓縮比，也能獲得較滿意的重構圖象效果，同時還使得將灰度人頭圖象轉換成彩色人頭圖象成為可能。
  5. This test platform is simplified ofdm digital television transmission system. the test platform provides a quick and efficient tool to testing the efficiency of ldpc coding for the setting up of dtv standard, without the need of the completing whold dtv system, saving time, improving work efficiency. even this platform is simplified version, but it still has all the key technique of dtv transmission system, accumulating experiences for the design of dtv transmission system, and it can easily expands

    由於數字電視傳輸系統是一個復雜龐大的工程，為了驗證數字電視傳輸系統中ldpc編碼的效率，以便於標準的確立，窄帶ldpc解碼-誤碼測試平臺就提供了一個快速，有效的編碼測試工具，而不用等整個系統完整的收發端設計完成之後才進行測試，大大的節省了時間，提高了工作的效率，有利於數字電視傳輸標準的盡快確定。
  6. This paper points out that it is efficient to code the string of index of the parts in adopting ga to solve cutting stock problem after analyzing the features and research tendency of ga. this paper presents suitable operators of selection, crossover and mutation for the coding method. these operators are used in the calculation of one - dimensional and rectangular cutting stock problems

    本文為這種基因編碼設計了實用的選擇、交叉、變異遺傳運算元，並將其用於一維下料方案優化問題、矩形件排樣問題的求解；討論了不同工藝要求條件下的適應度定義方法，並用四川大學博士學位論文計算實例驗證了其尋優效果。
  7. With the rapid development of multimedia and network techniques, efficient and effective image and video retrieval becomes more and more important due to teeming of vast image and video media in many coding formats

    隨著多媒體技術和網路技術的迅猛發展，巨量的圖像和視頻信息以各種編碼形式不斷涌現，使得有效的圖像和視頻檢索變得日益重要。
  8. In this dissertation, the basic principles of the coding and decoding of ldpc codes are studied systematically, and some code - design problems such as the design of degree distribution sequences, the design of girths and the design of efficient encode - able ldpc codes are analyzed in detail. based on all these efforts, some positive results are obtained and summarized as follow : 1

    本文在對低密度校驗碼現有理論的研究基礎上，系統地分析了低密度校驗碼在刪除通道下的糾錯性能和度序列設計、低密度校驗碼的圍長設計和快速編碼設計等編碼設計問題，獲得了一些研究成果，主要概括為： 1
  9. Based on a mathematical model which conforms to constraints, and has minimum discounted value of the sum investment and loss - cost in whole planning period, a new binary coding genetic algorithm is presented to solve multi - stage planning problem in this thesis. the method is proved to be efficient by test example

    本文分析了多階段電網規劃的思路，基於一個滿足約束條件，並在整個規劃期內所需要的投資費用和運行費用總和的貼現值為最小的數學模型，用遺傳演算法對算例進行了計算，計算中染色體編碼採用了涵括多個時間段的二進制方式，有效地解決了各階段之間的協調問題。
  10. The system includes production planning, quality management, energy management, statistical reports, basic datum management and users management. the system adopts a special coding method to track production quality, and the electrobaths " state is fed back to adjust production. this method realizes the efficient quality control in the successive production process

    系統以質量問題為核心，採用批號跟蹤主要生產設備狀態備案的方法考核產品質量，為生產過程提供反饋信息，從而實現了在不間斷的流程型生產過程中產品質量的跟蹤和控制；以生產成本中占據最大比例的能源費用為重點，對能源使用進行規劃控制。
  11. The demand is the power forcing speech coding to progress. traditionally linear prediction ( lpc ) vocoders are very efficient, which can encode speech from 800 to 2400bps, but unfortunately, artifacts such as buzzes, thump, and tonal noise always exist in them

    經典的線性預測（ lpc ）聲碼器具有很高的編碼效率，可以極低的碼率（ 800 2400bps ）對語音信號進行編碼，不幸的是它的合成語音聽起來很不自然，常常夾雜著嗡嗡聲，重擊聲或者音調噪聲。
  12. First, in chapter 2 block - based stereo video coding technologies are researched. based on the analyzing of the constraints of disparity distribution and corrections among disparity vectors as well as corrections between motion vectors and disparity vectors, fast algorithms for disparity estimation are proposed. experimental results show the proposed algorithms are efficient

    首先在第二章研究了基於塊的立體視頻編碼技術，重點分析了立體視頻中視差的特點及其分佈特性，研究了視差矢量和運動矢量之間的相關性，在此基礎上給出了視差估計的快速演算法，進行了實驗測試，實驗結果顯示快速演算法有很強的實用性，這是本文的一個創新點。
  13. In the part 2 of advanced audio video coding standard avs - p2, many efficient coding tools are adopted in motion compensation, such as new motion vector prediction, symmetric matching, quarter precision interpolation, etc. however, these new features enormously increase the computational complexity and the memory bandwidth requirement, which make motion compensation a difficult component in the implementation of the avs hdtv decoder

    在avs - p2中傳統的運動補償技術被進一步改進以獲得更好的編碼性能。這些新的特性包括：預測塊大小可變化1616到88基於矢量三角形的新型mv預測多參考幀最多2幀或4場直接或對稱模式匹配不限制的mv和1 4精度像素插值等。
  14. In detail, they are bit - interleaved coded modulation ( with iterative decoding ), low - density parity - check codes and stf technology. by the performance analysis of bicm ( - id ), which can make code and modulation optimal separately, and achieve maximum possible coding diversity as well as modulation gain, guidelines for its design and an easy algorithm for siso are proposed. design of capacity - approaching of ldpc codes and efficient encoding of them as well as several kinds of its decoding algorithms are investigated

    具體的講，就是討論了基於比特交織的編碼調制技術，並給出了映射方式的設計準則以及核心模塊siso的一種簡單的f - map演算法；研究了編碼最小漢明距隨碼長線性增加的ldpc碼的幾個方面的問題，包括接近香農限碼子集的度分佈對的設計、有效編碼器的實現和各種譯碼演算法的優缺點，並對基於ldpc碼的bicm應用於ofdm傳輸系統中的性能進行了模擬。
  15. Motion compensated prediction error image has significant amplitudes mainly along the boundaries of moving objects, correspondingly its wavelet coefficients contain large energy in high frequency bands. this greatly reduces the coding efficiency of ezw. it is first provided that the correspondence between the significant amplitudes area of the mcp error image and the wavelet coefficient significant map, then encode the significant map efficiently using quadtree approach, followed by bit - plane coding the significant coefficients to produce an embedded data stream. experiment result shows that compared to ezw and zte, the proposed algorithm is more efficient and has better performance

    演算法對于運動補償余量誤差幀首先進行小波變換，並選取適當的閾值，用重要圖表示大於該閾值的重要系數。根據殘差幀小波系數的統計特性，用四叉樹方法編碼重要圖，並對重要系數作位面編碼，生成嵌入式碼流。實驗表明，與ezw ， zte等演算法相比較，該演算法編碼效率高，復現圖像質量好。
  16. The highest rate of mutation is seen in the part of the virus genome coding for the spike protein, the component of the virus which enables human cell entry. these data suggest that during the early part of the epidemic, the sars - coronavirus was under significant pressure to change in order to become an efficient human virus

    這證明來自動物的病毒在感染人類的初期，病毒受到強大的選擇壓力，而須迅速變異，使病毒得以在人類身上適應和生存，令人類受到感染和傳播病毒。
  17. In past decade, scalable video coding, allowing partial decoding at a variety of resolution and quality levels from a single compressed stream, is widely considered as a promising resolution for efficient signal representation and transmission in a network environment, such as wireless - net, internet

    經過近十年的研究，可擴展視頻編碼被認為是一種在無線、因特網等網路環境下進行視頻傳輸的編碼解決方案，它僅用一個可調整的碼流就可以滿足不同用戶的個性化需求。
  18. Since the packet loss in a wireless network and the internet is inevitable, a robust and efficient video coding scheme is required

    然而，由於通信網路的不可靠性，錯誤和分組丟失情況隨時可能發生。這就要求視頻編碼演算法更加穩健、高效。
  19. To develop highly efficient coding, modulation and signal processing technologies is becoming the most necessary measure to realize these demands

    開發高效的編碼、調制以及信號處理技術成為提高無線頻率效率的必然手段和當務之急。
  20. So will it do in the future. it spurs us to develop highly efficient coding, modulation and signal processing techniques to improve the wireless frequency spectrum efficiency

    這種挑戰使得人們努力開發高效的編碼、調制以及信號處理技術來提高無線頻率的效率。
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