熵編碼法 的英文怎麼說

中文拼音 [shāngbiānmǎfǎ]
熵編碼法 英文
entropy encoding
  • 熵 : 名詞[物理學] entropy; thermal charge
  • 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...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  • 編碼 : encoded; code; coded; encrypt; codogram; coding編碼表 encode table; 編碼程序 builder; 編碼尺 code...
  1. Different bit rates are allocated to wavelet blocks according to energy the wavelet blocks include. bit rates in wavelet blocks are adaptively adjusted in coding process. by use of bipartition, the entropy of each wavelet block approximates to the target bit rate of one

    該演算法首先根據每個小波塊所含能量的多少和到每個小波塊實際編碼所用的比特數，給其分配不同的碼率；然後根據二分法，通過調整各小波塊的量化因子使得各小波塊的熵逼近它的目標比特率。
  2. A coding scheme is proposed to eliminate the redundancy of output vectors in pyramidal lattice vector quantization ( plvq ). a fast algorithm of labeling lattice points and a fast algorithm of finding lattice points are presented. and the transmission priority in case of asynchronous transfer mode is suggested

    提出了一種與圖象本身無關的熵編碼方法去消除金字塔格型矢量量化（ plvq ）的輸出冗餘：同時也提出了由格點輸出索引和由索引輸出格點的快速演算法；而且還根據異步傳輸模式（ atm ）的特點，選擇了傳輸的優先級。
  3. Joint video team of iso iec jtc1 sc29 wg11 itu - t sg16 q. 6 doc., klagenfurt, austria, july 2002, jvt - d034. 12 final draft of information technology - advanced coding of audio and video - part 2 : video

    本文的基於上下文的變長編碼方法c2dvlc獲得了更高的編碼效率，相比于mpeg - 2的2d - vlc熵編碼器，在一些典型的高清標清測試序列上，編碼效率平均提高0 . 34db ，與h . 264的cavlc相比，編碼效率相當。
  4. Better segmentation effect can be attained by coding gray levels of pixels as eigenvector, taking advantage of histogram entropy principles function as fitness function, adopting ranking selection operation, making use of arithmetic crossover and mutation at a certain probability, combining with clustering analysis to initialize clustering center of the population to segment cells image with genetic algorithm

    以像素的灰度值為特徵向量進行編碼，利用直方圖熵法準則函數作為適應度函數，採用基於排名的選擇操作，以一定的概率進行算術交叉和變異，並結合聚類分析設定種群的聚類中心對細胞圖像進行遺傳聚類分割。
  5. Neural networks are used more frequently in lossy data coding than in general lossless data coding, because standard neural networks must be trained off - line and they are too slow to be practical. in this thesis, statistical language model based on maximum entropy and neural networks are discussed particularly. then, an arithmetic coding algorithm based on maximum entropy and neural networks are proposed in this thesis

    傳統的人工神經網路數據編碼演算法需要離線訓練且編碼速度慢，因此通常多用於專用有損編碼領域如聲音、圖像編碼等，在無損數據編碼領域應用較少，針對這種現狀，本文詳細地研究了最大熵統計語言模型和神經網路演算法各自的特點，在此基礎上提出了一種基於神經網路和最大熵原理的算術編碼方法，這是一種自適應的可在線學習的演算法，並具有精簡的網路結構。
  6. Research of error resilience technology for video communication based on h. 263 codec major : signal and information processing data : author : meng yan signature : tutor : zhang erhu liu shichang signature : abstract the reconstructed image quality can be degraded substantially by errors during the transmitting over the communication channel, especially when the video is compressed by temporal and spatial coding ways, which leads to error propagation in frame sequence, so the error resilience procedure should be performed to improve the reconstruction quality

    由於通信系統的通道不可避免的存在噪聲，傳輸數據流必然存在誤碼。對于h . 26x的視頻編碼流，由於空域和時域的壓縮方法以及熵編碼方法的應用，即使是一個比特的錯誤，常會影響一個區域的圖像不能正確解碼，同時錯誤的圖像還會擴散影響后續數幀圖像。因此有必要在標準解碼程序的基礎上，添加容錯功能。
  7. The experimental results show that the compressed average bit is 8. 3674, 1. 2442 bits less than the original entropy, and the efficiency of rice coding achieves 98. 81 %. and the algorithm also has the advantage of real - time encoding in the system

    經過無損壓縮演算法處理，管道泄漏信號壓縮后的平均位數達到8 . 3674bits ，比原始信息熵降低了1 . 2442bits ; rice編碼的編碼效率達到了98 . 81 % 。
  8. The research of improved photo coding based on entropy coding

    基於信息熵編碼的改進圖像編碼方法研究
  9. Avs - m1455, 2004. 8 feng yi, jie dong, lu yu. a method to improve intra prediction mode coding in avs

    在這一節里，首先介紹了此內容自適應的二維可變長熵編碼的方法和主要特徵。
  10. Experimental results demonstrate that the proposed algorithm performs better than traditional entropy coding based on run length

    實驗結果證實了該演算法優于傳統的基於游長的熵編碼。
  11. In this paper, a context - based 2d variable length coding c2dvlc method for coding the transformed residuals in avs video coding standard is presented

    本文給出了一種高效的用於視頻編碼中預測殘差系數編碼的變長熵編碼方法。
  12. Context based adaptive arithmetic coding is used in the last part of the encoding process as the entropy coding. the mq coder is adopted in jpeg2000

    與其它的熵編碼方法相比，算術編碼能夠取得更好的壓縮效果，但它演算法復雜，運算量相對增加。
  13. Avs - m1456, 2004. 9 joint video team. draft itu - t recommendation and final draft international standard of joint video specification itu - t rec. h. 264 iso iec 14496 - 10 avc

    接著從運算復雜度和空間復雜度的角度分析了此熵編碼方法與h . 264中的熵編碼cavlc的復雜度比較。
  14. Text is a kind of very common resource in digital library, and lossless techniques play an important role in compressing text. starting from the shannon ' s entropy theory, we analyze the lossless compression algorithms, and implement arithmetic coding algorithm in c. in the experiments, we compare four different lossless compression algorithms by their performances such as compression rate, compression rate tendency with the length of data, stability, and complexity, using 35 groups data series with 4 different length

    本文從信息論中shannon熵定理出發，對無損壓縮技術進行系統地分析，用c語言實現了其中的算術編碼演算法，並用它對35組、四種不同長度數據序列進行了壓縮，給出了實驗結果，然後從壓縮比、壓縮比隨字元串長度的變換趨勢、演算法穩定性和演算法復雜性等四個方面對其與其它三種壓縮演算法lzw 、 lz77 、 rle進行了分析與比較。
  15. The kernel of improvement is that fractal predictive encoding is imported into mzte, and wavelet coefficient is encoded in zte mode or in fractal mode according to in which mode the encoding error is minimum

    這種改進的核心思想是通過引入分形預測編碼方法，根據具體情況，綜合使用零樹熵編碼和分形預測編碼方法對圖像小波分解系數進行編碼。
  16. Fortunately, lapped transform ( lt ), a classical transform arithmetic, possesses the dct ’ s feature of simple realization and low storing cost, while maintaining dwt ’ s advantage. by analyzing its time lapped transform ( tlt ) and frequency lapped transform ( flt ), this article brings forward a arithmetic which carries the temporal laps and frequent laps at the same time and discusses this time - frequency lapped method ( tflt ) combining with context - based entropy coding

    疊式變換（ lt ）兼有餘弦變換（ dct ）實現簡單、存儲開銷小和dwt的優點，文中通過分析已有的時域重疊（ tlt ）和頻域重疊（ flt ）疊式變換，提出一種同時進行時域和頻域重疊的疊式變換演算法（ tflt ） ，並結合上下文熵編碼，討論時頻域重疊式變換演算法。
  17. This paper first research on main technologies used by avs standard, which include prediction, transform, quantization, in - loop filter, and entropy encoding, and then focus on the 2d - vlc entropy coder of avs, which is context - based adaptive coder. this encoder operates on run - level pair, and it uses the type of current block and value of current coefficients to switch vlc code - table. these tables are designed according to the distribution of transformed coefficients, and this way is much better than using only one table to code all residual coefficients in one 8x8 block

    本文首先詳細研究了avs標準的核心技術，包括預測編碼、變換量化、環路濾波器以及掃描和熵編碼等，之後重點研究了avs標準中使用的基於上下文的2d - vlc變長編碼方法，這種方法編碼的是（ run ， level ）數對，同時根據當前編碼塊的類型和殘差系數這兩種上下文信息來切換碼表，這些碼表是預先根據變換系數在不同位置的分佈信息設計好的，這樣要比只使用一個變長碼表來編碼塊內所有位置上的殘差系數的壓縮效果要好得多。
  18. For the exponential - golomb code is a kind of prefix - codes, and the fact that using prefix - code means there are some strings that cannot be used any more. moreover, it may have some redundancies in it. therefore, we introduce a new algorithm that can remove these redundancies in this paper

    由於2d - vlc中使用的指數哥倫布碼是一種前綴碼，而使用前綴碼本身就意味已經有一部分的0 / 1串不能被使用，從而產生冗餘，所以本文研究了一種可以消除這種碼字構造冗餘的演算法，即基於前綴碼的視頻熵編碼演算法（ pcbe ） ，對其給予了完整的數學描述，證明了這種演算法應用於avs標準中的可行性。
  19. Third, to compress the text layer and image layer respectively. the whole process of compression includes sub - sample, wavelet transform, ezw and arithmetic encoding. and the whole process of decompression includes arithmetic decoding, ezw decoding, wavelet reverse transform and image smoothing

    第三，分別對文本層和插圖層進行壓縮，壓縮採用的方法依次為亞抽樣、小波變換、零樹編碼和算術熵編碼；解壓縮過程為算術熵解碼、零樹解碼、小波逆變換和圖像平滑。
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