碼變換 的英文怎麼說

中文拼音 [mǎbiànhuàn]
碼變換 英文
code conversion
  • 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...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  1. At the same time, we applied this method into reduction of block effects in transform coding successfully

    我們還介紹了這種技術在消除變換編碼方塊效應中的成功應用。
  2. Firstly, chromatism analysis and wavelet transform are used for color image compression coding. in this method, one of the three color components of a color image ( for example the g component of a rgb color image ) is coded using wavelet transform, and the chromatism between g and other two color components rg = r - g, bg = b - g is coded respectively using chromatism analysis. during decoding, g ~ is first reconstructed using wavelet inverse transform and inverse quantisation, and rg, bg are reconstructed using chromatism analysis inverse transform ; then r, b are calculated by r = g + rg and b = g + bg respectively

    其一是應用色差分析和小波變換對彩色圖象進行壓縮編碼，該方法是對彩色圖象的三個色彩分量之一，如rgb圖象的g進行小波變換編碼，而對g與另兩個色彩分量的差值（即rg = r - g和bg = b - g ）進行色差分析編碼，解碼則是通過反量化和小波逆變換得到g ^ ，通過色差分析的逆變換得到兩個重構的色差rg ^和bg ^ ，再算出r ^ = g ^ + rg ^ 、 b ^ = g ^ + bg ^ ，最後由r ^ 、 g ^ 、 b ^重構圖象。
  3. The contents of this studies include : 1 ) according to the researches on the correlation between the function and structure of the cmiv from bombyx - moxi before by others, especially by lixinlal in naigin normal university of china, we have designed and sythesized the mutation i of the gene of cmiv that was different from the natural cmiv about 50 % in amino sequence, using the favorable condon of the ecoli. after cheked the result of synthesis by sequence, we have cloned the gene into 3 " of the gene of thioredoxin in the thio - fusion expression vector ( ptxfus ), and the fusion protein of thio - cmiv was highly expressed in soluble form

    本研究的內容包括：一、在前人對抗菌肽cmiv研究的基礎上，對n端和c端進行氨基酸保守變換，設計和合成了該基因，充分使用大腸桿菌偏愛的密碼子，並將該基因5端與硫氧還蛋白基因3端融合，通過ptxfus表達載體獲得較高可溶性表達（在15 sds - page膠上可見明顯的表達蛋白帶） 。
  4. For the anticounterfeiting of printings ( such as certificate ), the existent many ways ( such as rainbow holograms ) are not available as the need for special use : anti - distortion and anti - copy. basing in the double - random - phase transform, this article puts forward a new way that two - dimensional bar code is used as anticounterfeiting label with anti - printing ? scanning and anti - damage properties. the major job are : ( 1 ). basing in the ascii codes, numerals and alphabets are encoded and subsequently transformed into two - value bar code matrix figure. later, using amplitude - based double - random - phase transform, the enciphered gray scale figure is formed. by computer simulation ( 4f system ) and printing as well as scanning ( 20 times ), we get the result that the gray scale figure with little miscoding rate ( 0. 0026 ) by “ matrix expanding way ”

    本文主要開展了以下三項研究工作: （ 1 ） .用自定義編碼方案，將數字和字母（ ascii碼）轉換成二值條碼圖;對該圖形進行振幅型雙隨機相位加密變換，得到原信息的加密灰度圖;通過4f光學系統計算機模擬和列印-掃描實驗，證明本文提出的「矩陣擴展法」灰度圖具有較小的誤碼率，對於20次列印-掃描實驗，誤碼率不大於0 . 0026 。
  5. In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab

    針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。
  6. The emphasis of this thesis is studying the methods of bit allocations of digital image compression based on wavelet transform and managing to minimizing the overall distortion. we know from the rate - distortion theory that the aim is gainable

    由率失真理論我們知道，對于給定的碼率，可以找到一種比特分配演算法對小波變換后的各個子帶進行比特分配，使重建圖像的失真達到最小。
  7. The high entropy of the real and imaginary parts of sar raw data makes lossless - coding compression techniques unfit for sar raw data. in chapter 4, some compression algorithms for sar raw data compression, such as baq, upq, bavq and wt - subbandcade are analyzed and discussed. an improved unrestricted polar quantizer ( upq ), which can enhance the performance of the quantizer is put forward

    第四章分別對塊自適應量化（ baq ）演算法、非約束式極坐標量化（ upq ）演算法、塊自適應矢量量化（ bavq ）演算法和小波變換子帶編碼演算法進行了分析和研究，並詳細討論了這些演算法在工程實際中的應用。
  8. The technology of identification based on iris is researched in the article, the key point of the technology is the iris characteristic acquisition and recognition, therefore based on the iris image texture characteristic, using the wavelet transforms to get the characteristic of iris image, a new method named zero - crossing detection and secondary circle coding is used in the article

    本文研究的就是用虹膜進行身份識別的技術，該技術的關鍵是虹膜特徵提取和識別。基於虹膜圖像的紋理特徵，利用小波變換來提取虹膜圖像的特徵，本文提出了基於小波過零檢測的循環二次編碼的方法。
  9. Experimental results show the obvious advantage and robustness of our methods. in this thesis, we study the algorithm of holographic stereogram display that can be implemented using cgh. we discuss the imaging process through capturing sequence parallax images, illuminating hologram by a plane wave creates the volume effect in the observer ' s eyes

    對基於計算機的三維全息成像中的光柵編、解碼理論進行了研究，在此基礎上，將小波變換方法應用到全息顯示中，建立新的變換模式下的光柵編、解碼演算法，計算中採用小波包分解方法，使全息條紋的計算更加快速、便捷。
  10. A watershed transformation algorithm based on chain code

    基於鏈碼的分水嶺變換演算法
  11. As to cyclic codes over finite chain rings, we study their stucture and develop the fourier transform method to finite chain rings. the permutation groups of cyclic codes and their extended codes are investigated using their mattson - solomn polynomials

    對于有限鏈環上的循環碼，我們研究了它們的結構，並把傅立葉變換的方法推廣到有限鏈環，用循環碼的mattson - solomn多項式對循環碼及其擴展碼的置換群進行了研究。
  12. " l ' lle brief introduction of underwater acoustic channel and the cl1art of image transmission syste111, innovation of ti1is paper are given in the first chapter. basic technology and hardware using in this project are introduced in the seco11d chaptel transform methods, especially the wavelet transformation are introdtlced il1 the tl1ird cllapter. ii11age ' s coding methods are introduced in cl1apter four, witll tilem ti1e zero tree method is the el11pl1ases

    第一章給出對水聲通道特性簡介以及圖像信息傳輸的系統框圖、本研究創新之處；第二章介紹圖像處理的基本技術以及本研究的硬體環境；第三章介紹圖像數據的變換方法，著重介紹了小波變換涉及到的知識；第四章介紹圖像編碼，重點介紹了零樹法編解碼；第五章介紹本研究的軟體、硬體設計、對零樹法的具體改變。
  13. In chapter five, the structure and principle of hadamard transform imaging spectrometer are deseribed. method of manufacturing marks, the key element of the spectrometer by applying computer technology lithography is given, practical masks are obtained by this method, errors of the mask that affected the measurement result are modulaton, finally discusses the limitation of hadamard transform imaging spectrometer ' s application

    阿達碼變換成像光譜儀的關鍵元件是編碼模板，給出了應用計算機技術、光刻技術等先進技術製作編碼模板的方法，並應用該方法製作了31x33碼元二維移動方式下的空間編碼模板， 31x33碼元一維移動方式下的空間編碼模板，以及63碼元的光譜編碼模板等。
  14. Frequently used major coding methods include predical code, transform code, vectol quantization, wavelet transform code, fractal code, ect

    常見的主要編碼方法有預測編碼、變換編碼、矢量量化編碼、小波編碼、分形編碼等等。
  15. Image code is a developing field on image compress and a lot of methods on that has now generated, such as statistic code, predict code, transform code, subband code, model code, wavelet transform code, vector quantization code, neural networks code, fractal code etc. in this thesis, we mainly describe our work on vector quantization code and wavelet transform code on image compress

    常見的圖像壓縮編碼方法有：統計編碼，預測編碼，變換編碼，子帶編碼，模型基編碼，小波變換編碼，矢量量化編碼，神經網路編碼，分形編碼等。本文以矢量量化壓縮編碼和小波變換壓縮編碼這兩種圖像壓縮編碼方法為主要研究對象。
  16. Image code is a developing field on image compression and a lot of methods on that has now generated, such as predict code, transform code, statistic code, subband code, fractal code, model code, vector quantization code, neural networks code, wavelet transform code, etc. in this paper, we set focus on the wavelet transform code

    常見的主要編碼方法有預測編碼，變換編碼，統計編碼，子帶編碼，分形編碼、模型編碼、矢量量化編碼，神經網路編碼，小波變換編碼等等。本文主要研究基於小波變換的圖像編碼方法。
  17. Transcoder rate adapter unit trau

    碼變換器速率適配單元
  18. 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。
  19. During the latest 20 years, great progress has been made in the theory, method and technology of image - compression coding on the basis of such traditional coding methods as coding forecast and exchanger coding etc ; wavelet transformation has been widely used in signal - disposal field, because it has a characteristic of energy focus, it puts forwards a concept of multi - resolution ration analysis and the realization o f algorithm about wavelet decompose and fast rebuild. among the applications of wavelet analysis, it is rather mature to apply it to image - data compressing

    近20年來，在預測編碼、變換編碼和其它傳統編碼方法的基礎上，圖像壓縮編碼的理論、方法和技術取得了較大進展；其中小波編碼演算法因其能量集中特性、多分辨分析概念的提出和小波分解與重構快速演算法的實現，使得小波變換在信號處理領域得到了廣泛的應用，小波分析應用於圖像數據壓縮是小波分析應用的一個比較成熟的方面。
  20. There exist two implementing methods in the automatic differentiation, including the source transformation method and the operator overloading method

    自動微分的實現方法包括源代碼變換方法和運算符重載方法。
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