有效壓縮比 的英文怎麼說

中文拼音 [yǒuxiàoyāsuōbǐ]
有效壓縮比 英文
effective compression ratio
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 壓 : 壓構詞成分。
  • 縮 : 縮構詞成分。
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 有效 : effective; valid; efficacious
  1. The experiment result shows that the coding and decoding rates are high, and the signal to noise ratio, compression rate and visual quality are quite good

    實驗結果表明該方法編（解）碼速度快，並有較好的信噪比、壓縮比及視覺效果。
  2. Ab stract the author is engaged in the studying and manufacturing of an intelligent, capable and portable, multifuctional electrocardio monitoring equipment with aduc8 12 single - chip. microcomputer. the equipment can gather and record the electrocardio signals automatically, also can analyse it at real time, and send it out to the monitoring center through the telephone at real time or send it out by serial interfaces to computer. it use the graph display device to show the electrocardio waves and menu. cooperated with buttons, it provides amicable interface, and makes operation simple and convenient. based on the feature of the electrocardio signals, this paper also proposes a electrocardio distortionless data compression algorithm. the algorithn is simple but effective, it can process the data at real time, and the compression - ratio reaches 2 6

    所研製的監護儀能長時間採集和記錄心電信號，同時可進行心電數據的實時分析，並可通過電話向監護中心實時發送，也可通過串列介面發送至微機。該監護儀採用圖形液晶顯示器顯示心電波形和菜單，配合按鍵提供友好的人機界面，操作簡潔。本文還根據心電波形的特徵，提出一種心電數據的無損壓縮演算法，該演算法簡單有效，能實時實現，壓縮比達到2 6倍。
  3. So this part is dealt with separately. dcpm method is employed to improve the quality of image coding with making full of the relativity of the wavelet coefficients. according to the different importance degree and vision character of the high frequency wavelet coefficients, different thresholds are applied to remove small coefficients ; then mannos module are applied to remove the visual redundancy ; in order to produce more zero - tree, horizontal and vertical wavelet coefficients are transformed accordingly to improve the compression ratio

    對于小波變換后的小波系數的高頻部分，根據其分佈特性和人眼的視覺特性，採用視覺模型對零樹量化過程的閾值進行修正，有效地去除視覺冗餘；對各高頻子圖採用多級樹集合分割的零樹編碼方法，有效地利用系數編碼剩餘符號，進一步提高壓縮比。
  4. Moreover, it has been pointed out that the hydrogen engine used in ? cylinder injection with high pressure can increase volumetric efficiency and compression ratio, - therefore, the performance indexes in this engine, such as output power, thermal efficiency, range of thickness of mixture with normal operation and nox emission, can be improved, and it is possible for the engine to realize rapid combustion of thin mixture, so abnormal combustion, such as backfire, pre ? ignition, can be controlled effectively

    指出了採用內部混合氣形成方式且高壓噴射的氫發動機，有利於提高充氣效率和壓縮比，從而改善發動機的動力性和經濟性；有利於擴展發動機正常工作的濃度范圍；並且有利於實現稀薄混合氣快速燃燒，從而可以有效地抑制早燃、回火及爆燃等異常燃燒和no _ x排放量。試驗指出了發動機的點火正時、噴射正時及噴氫量對發動機的性能、異常燃燒、 no _ x排放量有很大影響。
  5. However, there still exists correlation between coefficients of sub - matrices after 4d - mdct. this thesis proposes a four dimensional matrix video coding method based on context to get rid of the correlation between coefficient sub - matrices further. it includes three parts as follows : firstly, this thesis presents a four - dimensional matrix video encoder and decoder model, which contains components of prediction, transform and entropy coding

    實驗結果表明，該方法與傳統的二維編碼方法相比，具有高壓縮比和高圖象質量的優點;與矢量量化編碼相比，具有碼表體積小，計算復雜度低的特點;與霍夫曼編碼方法相比，在相同信噪比的條件下，對運動相對劇烈的視頻序列壓縮效果要更好。
  6. Distribution of wavelet coefficients in those sub - images is just appropriate for the properties of human vision systerm. it is that eyes are most sensitive to sub - image in the low resolution ratio and less sensitive to sub - images in the high resolution ratio. so a little loss of information in high sub - images may not bring out marked change to vision effect of construct image

    經分解后的各個子圖中的小波系數的分佈恰好適合人類視覺系統的特點，即人眼對于低解析度子圖更敏感，對于高解析度子圖較不敏感，因此高解析度子圖中的信息稍有損耗並不會顯著影響重構后圖像的視覺效果，這樣實現圖像的高壓縮比就成為可能。
  7. Experimental results show that this formula improves the speed of video coder at the same psnr without damaging the image quality

    實驗表明，本文的改進演算法非常有效，避免了大量冗餘計算，在保證圖像質量的同時提高了編碼效率，提高了壓縮比。
  8. This method has many advantages compared to the latter and is testified by many images. ( 2 ) because fractal coding has the characteristic of high compression ratio, this thesis designed a spatial self - embedding watermarking technique. after self - embedding, it can detect any changes to a watermarked image as well as localizing the areas that have been tampered

    （ 2 ）鑒于分形圖像壓縮具有很高的壓縮比且重構圖像效果好的優點，本文利用分形壓縮實現了一種空域自嵌入水印演算法，不但能對篡改區域進行有效定位，而且具有修復功能。
  9. The advantages of hcci are numerous comparing with the traditional engine. relative to si gasoline engines, hcci engines are more efficient, because they have no elimination of throttling losses, use the high compression ratios and have shorter combustion duration. relative to cidi engines, hcci engines have extraordinarily lower emissions of pm and nox and can offer more power as high as cidi engines with the dilute homogeneous air and fuel mixture

    與傳統的發動機相比均質壓燃（ hcci ）具有很多優勢:與火花點火汽油機相比， hcci發動機由於沒有節流損失，壓縮比較高，燃燒持續期短，其效率更高;與直噴柴油機相比， hcci發動機的碳煙和氮氧化物排放非常低，並且稀薄空燃混合氣可以產生與柴油機一樣高的功率。
  10. An advantage of wavelet - based video compression is that it offers more graceful image degradation at high compression ratios, and it also eliminates the block artifacts seen in dct compression

    由小波變換編碼實現的視頻壓縮在具備高壓縮比的基礎上，仍擁有較高的主觀視覺效果，避免了由分塊dct變換引起的方塊效應。
  11. The disposal of the valves and intake manifold structure not only affect fresh air charge but airflow in the cylinder, which immediately affect combustion efficiency and the performance of dynamic, economic and emission. the structure of the air distributing institution has influence on charging efficiency and the noise of engine. the combustion chamber affects compression scale which has great influence on dynamical performance ; f / v which affects the exhaust of hc ; squash area and clearance which have great influence on the intensity of squash

    氣缸蓋的氣門排列方式與氣道結構形式影響進氣充量和氣流在氣缸內的運動，從而影響了燃燒效率，對整機的動力性、經濟性以及排放都有直接的影響；配氣機構的形式影響充氣系數和整機噪聲等；缸蓋燃燒室決定了影響整機動力性能的壓縮比，影響hc排放的f / v和對擠流起決定性作用的擠氣面積以及擠氣間隙，所以燃燒室對整機動力性、經濟性、排放等都有重要的影響；氣缸蓋是整機熱負荷與熱應力最大的部件之一，熱負荷過高將不利於發動機壽命以及可靠性的提高。
  12. In the first part of this thesis, on the base of analyzing the wavelet theory and discussing the wavelet coefficient, a kind of shapiro code algorithm is put forward. it efficiently organizes the wavelet coefficient and enhances the compression

    第一部分在詳細研究小波理論的基礎上對小波系數的組織形式進行了討論，提出改進型shapiro編碼演算法，更有效的組織小波系數並對編碼序列進行一次預編碼，提高了壓縮比。
  13. Evident differences have been revealed in the results. finally the valves with given failure supplied by the manufacturer of the compressor are installed in different cylinders, the vibrations of the cylinder heads are measured and evaluated again with the same system camd - 6100

    在對實驗數據統計分析的基礎上，提出了以一、二和三階倍頻幅值與振動總量有效值的比值，作為診斷壓縮機氣閥故障的特徵參數，並建立了不同氣閥故障的判別準則。
  14. Third, the quantization of wavelet coefficients based on the embedded zerotree wavelet ( ezw ) is discussed and some improvement is made to it. finally, this paper brings forward a scalable image coding method based on iwt and the improved zerotree quantization, which can realize lossless to lossy image compression, more simple computing, and higher - quality reconstructed image compared with image coding method based on traditional wavelet transform. the experimental results are satisfying

    在此基礎上，提出了一種基於整數小波變換和改進零樹量化方法的可分級圖像編碼方法，該方法可以實現圖像從完全無損到有損壓縮，與基於傳統小波變換及零樹量化的方法相比，運算簡潔，速度快，重構圖像質量高，取得了令人滿意的效果。
  15. The block - based fractal image compression method has a low compression ratio, so simple region - based fractal image compression is introduced, then the competitive region - based fractal image compression method is presented. the experimental results show that the compression ratio is effectively improved at a similar psnr value. wavelet - fractal image compression has been received widely attention

    由於基於塊的分形圖像壓縮方法的壓縮比不高，對此進行改進，先介紹簡單的基於區域的分形圖像壓縮，然後提出基於區域的競爭分形圖像壓縮演算法，並進行實驗，實驗結果表明，該方法在保持一定的信噪比的情況下，有效的提高了壓縮比。
  16. Our experimental results show that, comparing with exhaustive search, when the class number is 25, we obtain 17 times speed - up ratio, with only image degeneration of 1. 574951db, at the same compression ratio. compared with other classification schemes, our method can provide more speed - up and better quality of decoded image. 2

    我們做了大量的數值實驗，結果表明，在壓縮比相同的前提下，與全局搜索法相比，將圖像塊分為25類時，可取得約17倍的加速比，而解碼質量只相差1 . 574951db ；另外，與其他分類方法的比較實驗表明，本方法有更好的加速效果和解碼質量。
  17. People often think about the filter ' s characters of orthogonal, symmetry, regularity, but seldom synthetically think about some factors such as image texture or compression rate. in this paper used the same adaptive arithmetic coder for many filters, analyzed the effect factors synthetically for the best wavelet compression, and give some methods for selecting filter

    本文對多種常見濾波器，採用相同的自適應量化編碼方法進行實驗，研究並分析了選擇濾波器時應該考慮的圖像紋理、濾波器長度、壓縮比等一些綜合因素，有效解決了在小波圖像壓縮過程中，如何更好的選擇濾波器的問題。
  18. The paper includes two main initiations. one is employing the method of segmentation before compression, which is benefit to a more effective compression according to the characteristics of scanned document image. another is combining roi and progressive transmission, in which makes the compression rate and transmission performance reach the best balance

    該論文的主要創新點有兩個：一個是在圖像壓縮之前採用了圖像分割的方法，有利於更好的針對圖像的自身特點對之進行有效的壓縮；另一個是採用了一種結合興趣域和漸進傳輸的掃描文檔圖像的壓縮和傳輸方法，使得圖像的壓縮比和傳輸性能達到最好的平衡。
  19. Through anatomizing ezw coding algorithm and taking the effects of human being ’ s vision characteristics on quality of reconstituting image. a improved zeretrees algorithm are put forward. at last a new image compression encoding algorithm based on wavelet transform and vector quantization is put forward. the experiment show, in very low bit rate, using the proposed algorithm, the reconstructed image is superior to that of ezw in both of perception and psnr

    最後，在小波樹的基礎上，通過對矢量量化的研究，本文提出了一種基於四叉樹結構新的小波樹矢量量化壓縮編碼演算法，實驗證明，在較高壓縮比的情況下，使用此方法得到的重構圖象質量（視覺效果和峰值信噪比）比通常的小波壓縮演算法有了較大的提高。
  20. Hucr highest useful compression ration

    最高有效壓縮比
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