真壓縮比 的英文怎麼說
中文拼音 [zhēnyāsuōbǐ]
真壓縮比
英文
actual compression ratio-
According to the question of using natural cooling will prolong the period of opening cylinder for overhaul, we expound three modes for the steam turbine quickly cooled after being stopped, these are vacuum and aeration - cooling, pressure - air cooling and steam 1ing, then analysis and contrast them
摘要針對汽輪機採用自然冷卻方式會延長機組檢修開缸時間的問題，提出了汽輪機停機后的三種快速冷卻方式：抽真空通汽冷卻法、壓縮空氣強迫冷卻法和蒸汽冷卻法，並對這三種方式進行了比較和分析。" electronic 1c chip drawing system " provides many functions such as " modify the position of the component ' s diagram " " modify the color of the component ' s diagram " " magnify and minify the component ' s diagram without distortion " " change the type of drawing line " " edit some physical properties of the component " " copy and paste diagram of one component " " delete one or more component diagrams " " move more than one components " positions " " change the z _ order of the diagram, set it to back or bring it to front " " save the drawing of the electronic components to one file and the file extension name is *. brd " " print the drawing ". users can finish all these functions easily by clicking and dragging the mouse
電路板元器件繪制系統主要完成了使用鼠標拖拽、鼠標點按的方式繪制電路板上各種常見的元器件圖形；編輯電路板上元器件圖形的位置；編輯元器件圖形的顏色；不失真的對器件圖形進行放大和縮小；編輯元器件圖形的線型；編輯電路板上各個器件的物理屬性（比如電阻的阻值大小、電容的容量大小、額定電壓等） ；復制已經繪制出的電路板上的器件；粘貼剪貼板上的器件；刪除單個或多個已經繪制出的器件圖形；同時改變多個器件圖形的位置；改變繪制區內各個元器件的zorder順序，也就是可以將層疊在一起的圖形置前或置后；把繪制的電路板器件圖保存到指定文件中；能打開、查看和修改保存的電路板器件圖；列印電路板器件圖。The self - weight of soil is an important factor affecting consolidation, and once it is taken into consideration, the consolidation becomes quicker and final settlement becomes larger. rheological property of soft soil contributes to delaying consolidation. the influences such as nonlinear variations of compressibility and permeability, rheological and layered properties of soil, self - weight and time - dependent loading are interacted each other and very complicated, and only they are all taken into consideration, can the consolidation behavior of soft soils be actually revealed
研究表明：大、小應變固結理論的差異隨土壓縮性或荷載的增大而越趨明顯；土體自重是影響固結的一個重要因素，考慮自重要比不考慮自重固結快、最終沉降大；土的流變性增大將最終遲滯軟土地基的固結；土的壓縮性和滲透性的非線性變化、土的流變性、成層性、自重及變荷載等因素對固結的影響相互交織，錯綜復雜，在固結分析中對之綜合加以考慮，才能真實反映軟土的固結性狀。Real squash and stretch is usually some part of an object deforming differently that just a simple scale up or down
真正的擠壓和拉伸應該是角色身上各部分都有變化互相配合的結果，而不是簡單的縮放比例。Unfortunately, in these situations, the notorious blocking artifacts resulting from block dct set a severe limit on the achievable bit - rate with acceptable quality
然而，基於dct的傳統視頻壓縮方法由於在低比特率下出現塊失真嚴重影響恢復視頻質量。We put forward an adapted wavelet packet transform method - - adapted wavelet packet transform based on r - d rule which selects the best wavelet packet base according to r - d rule, in which best quantization method and huffman coding are used. this method produces the best compression version such that the error upon reconstruction is within an upper bound fixed a given value and obtains satisfactory compression results
這種方法依據r - d準則優選出最佳小波包基，在優選過程中，用到了最佳量化法和霍夫曼編碼，從而保證了在給定的失真內使得壓縮比做的最高，取得了比較滿意的效果，為將來在dsp上實時的實現做好了鋪墊。In chapter 5, all above algorithms are tested with the true raw data of an x - band sar. the test results of different algorithms are compared in both data domain and image domain
第五章採用真實合成孔徑雷達原始數據對各種演算法進行驗證，分析了各種演算法的優勢和特點，在數據域和圖像域對不同演算法的壓縮性能作了定量的比較。Prediction algorithm is a most simple one of all methods on images compression. and it explore directly the spectral correlations of hyperspectral images. its method is very simple and easy to be implemented. prediction takes full advantage of the spectral correlations to use transmitted spectral to predict current spectral, then predictive error that original spectral is substracted by predictive spectral is coded. the predictive error is wiped off the spectral correlations, so compression is easier than before
預測技術是最簡單的一種方法，它直接探索譜帶與譜帶之間的相關性，具有演算法簡單、易於實現的特點。預測技術充分利用圖像的相關性，用已傳輸的值對當前值進行預測，然後對預測值與真實值的差即預測誤差進行編碼處理。預測產生的殘余誤差已被去相關，因而比較容易壓縮。Considering the large numbers of the ecg data, the author analyzes the methods on compression of ecg singnal. in this paper, the method is based on wavelet transform and adaptive coding. it can obtain better compression ratio and reflect the accurate detail of original signal
本文還針對心電數據量大的特點，對心電信號壓縮方法進行了探討，採用小波系數自適應壓縮方法對心電信號進行了壓縮，取得了較好的壓縮比，並具有重構信號失真小的特點。As well as, using vector operation substitute scale operation in order to improve compression rate condition on keeping on distortion. by tool of vc + + simulate the result of research. finally, compared with jpeg, we can draw on a condition : using dct table substitute dct calculate and using vector operation substitute scale operation which can attain that is high compression rate and steady distortion
其中，在dct變換中通過使用dct查詢標的方式代替dct常規變化，達到減少計算機乘除運算次數的目的；量化過程中通過使用矢量量化代替標量量化，達到在保證最小失真度的前提下提高壓縮比，並因此省略了jpeg壓縮中的熵編碼過程，簡化了壓縮過程，同時獲得最佳壓縮效率。Simulation study shows 2. 5db imd3 suppression can be improved compared with common polar lut predistorting system that has same 64 lut entries. besides the studying of indexing technique, the adaptive refresh algorithms of lut are studied and a new algorithm is obtained
模擬研究表明，在相同64位表項的極坐標預失真系統中，對比幅度索引技術該新型索引技術可以提高2 . 5db的imd3壓縮性能，但不增加硬體實現成本。On the basis of getting the gamut shells and gamut sections, an adaptive compression mapping method is designed and realized. the method ' s anchor point is selected according to the maximum chroma point of printer gamut, so the mapping distortion could be decreased to some extent in the maximum distortion subregions
在獲取整體色域外殼與色域剖面對比圖的基礎上，設計並實現了自適應壓縮匹配演算法，該演算法按彩度最大點位置確定映射參考點的明度值，具有自適應性，可有效減小最壞子域的匹配失真。Secondly, mpeg4 technology and mpeg4 video compression card are use in this plan. thirdly, for video transmission, the size of the pictures are shortened to make the bit - rate smaller
三、採用mpeg4優化演算法，在視頻圖像失真盡量小的情況下，達到對視頻的更大的壓縮比。H. 264 offers significantly better video compression efficiency than the previous itu - t standards and mpeg standards, but its computational complexity is too large for implementation
H . 264的三個主要目標之一是提高編碼效率，在同樣的保真度條件下，平均碼率比現有的h . 263視頻壓縮標準低50 % 。分享友人