速率失真函數 的英文怎麼說

中文拼音 [sùlǜshīzhēnhánshǔ]
速率失真函數 英文
rate distortion function
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 真 : Ⅰ形容詞（真實） true; genuine; real Ⅱ副詞1 （的確; 實在） really; truly; indeed 2 （清楚確實） cl...
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 速率 : speed; rate; tempo
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. By choosing non - hybrid dictionary, blocking artifacts of dct system can be avoided ultimately. the cost of coding motion information is reduced, so the visual quality of images at low bit - rates is improved. 4

    而且，通過選擇非晶格結構的字典（原子函數之間允許重疊） ，從根本上避免了低速率dct系統帶來的方塊邊緣失真，增加估計的精度，減少對運動信息編碼耗費並提高在低速率下的視覺效果。
  2. We improve the real - time and quality performance of a scalable 3d wavelet coding scheme, mc - ezbc, and then focus on the joint rate - distortion target model of the mc - ezbc transcoding and propose a rate - distortion optimized layered rate control method

    本文對可伸縮三維小波編碼演算法mc - ezbc實時性能和質量進行了改進，在此基礎上，重點研究了mc - ezbc轉換編碼的聯合率失真目標函數和優化演算法，提出了率失真優化的mc - ezbc轉換編碼分層速率控制方法。
  3. So if we gain the relation between the the derivative of ggd distortion - rate function and the ggd shape parameter, then we can reconstruct the rate - distortion function. the bitplane - based fgs of mpeg - 4 has been accepted as a standard coding tool for video streaming applications

    這樣，實際中只需研究特定編碼量化模式下ggd失真速率函數的導數與ggd形狀參數的關系和規律，就可以重建相應編碼模式下的失真速率函數。
  4. In this thesis, firstly, we introduce generalized gaussian distributions to model the distributions of dct coefficients of an el frame. then, according to quantization theory, we analyze the distortion - rate function of the generalized gaussian model, with which we conclude that for the actual fgs coding, the derivative of actual distortion - rate function usually decreases continuously as the rate increases, and then begins to increase slowly at a comparatively high bit rate. finally, guided by the

    然後分析了fgs編碼的量化模式，並把它應用到ggd分佈上，得到了ggd分佈率失真函數的變化規律，從而獲得實際fgs編碼的率失真函數的變化規律，即fgs編碼失真速率函數的導數先隨著碼率的增加而逐漸減小，然後在碼率比較高的時候開始隨碼率的增加而緩慢地增加。
  5. The main contributions of this thesis are as follows : generalized gaussian distribution ( ggd ) is a nice model for the dct coefficients and wavelet coefficients in theory and practice. with information and quantization theory, we mathematically prove that the derivative of ggd distortion - rate function exists and is not related to the variance of the distribution

    本文通過信息論和量化理論的知識，分析了廣義高斯分佈ggd率失真函數的基本屬性，數學上嚴格證明了:以峰值信噪比psnr （ peaksignalnoiseratio ）或信噪比snr為失真標準，廣義高斯分佈ggd的失真速率函數（ distortion - ratefunction ）的導數存在，並且與分佈的方差無關。
分享友人
分享到 Line

分享到臉書