redundancy coding 中文意思是什麼
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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。 -
Based on unsupervised learning, sparse coding is suitable to describe images with non - gaussian distribution and can get rid of the high order redundancy among the image pixels. since the basis function of sparse coding has build - in clustering property, it increases the inter - class variations of the features
稀疏編碼是一種基於非監督學習的演算法，它適合描述具有非高斯分佈的數據對象，能夠有效地消除圖像象素點之間的冗餘，並具有內在的聚類特性。 -
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。 -
In the paper, chapter 1 gives a comprehensive introduction of digital image compressing including its recent status, technical standards, classification in the world. chapter 2 introduces briefly the thought and ii procedure of vector quantization, describes lgb algorithm and vector quantization based on sofm neural network. chapter 3 discusses predictable coding in lossy and lossless aspects, analyzes adaptive predictable coding based on bp neural network, introduces the evaluation of algorithm on neural network in image compression. chapter 4 discusses the applications of mathematical transformation in image compression and does experiments related, analyzes the strategies of image coding in transformed domain. in chapter 5 images are decomposed and represented by wavelet transform, then discusses the characteristics and effects of wavelet functions in image compression, analyzes the wavelet coefficients after images are decomposed ; based on the theories and analyses in the prior chapters, the paper presents an image compression scheme and gives results. the test results shows that the image compression scheme is practical and helpful to map into the local content of images to get rid off redundancy, so that, it can require satisfactory results of image compression
方案首先利用小波多分辨分析性質，對圖像進行小波分解，對分解后各子圖的小波系數進行了統計分析，針對各子圖的小波系數特點，對不同的子圖分別採用不同的壓縮方法，低頻子圖採用基於神經網路的自適應預測編碼，高頻子圖採用基於神經網路的矢量量化編碼，從而實現對圖像數據的壓縮處理。本論文第一章介紹了數字圖像壓縮處理的國內外當前的概況以及其技術標準和分類。在第二章，介紹了數字圖像的矢量量化技術的數學思想和過程，對lbg演算法和基於sofm神經網路的矢量量化進行了闡述、分析。 -
Context - based sign coding is used to remove the redundancy of sign of wavelet coefficient for correlation of them
小波系數的符號間有一定的相關性，使用基於上下文內容的符號編碼去除小波系數的符號間的冗餘。 -
Adaptive run length coding explores the residual redundancy of the high frequency coefficients in the transform domain. hereby, an embedded image coding algorithm based on binary description run length ( bdrl ) is brought forward
對高頻子帶採用自適應的遊程編碼處理，提出一種二進制描述遊程的嵌入式圖像編碼演算法（ bdrl ） 。 -
The proposed md mesh - based motion coding methodis then combined with the pairwise correlating transform, and acomplete md video coding scheme is proposed. further measures are takento reduce the mismatch between the encoder and decoder that occurs whenonly one description is received and the decoder reconstruction isdifferent from the encoder. the performance of the proposed scheme isevaluated using computer simulations, and the results show, compared toreibman s md transform coding mdtc method, the proposed schemeachieves better redundancy rate distortion performance
數據重傳必然會引起延遲，因而在需要很短延遲的應用中是行不通的，如雙向無線通信同時在以廣播方式進行數據傳輸時也是行不通的當有大量突發錯誤時，糾錯碼如分組糾錯碼block code及卷積碼convolutional code無法在不產生額外延遲及需要額外運算的前提下對數據提供足夠的保護而錯誤掩蔽的性能則受接收到數據與丟失數據之間的殘留相關性大小的影響。 -
For i - frame coding, existing coding standards only take use of information of itself, and for p - frame and b - frame, inter - frame information is used. however, there is still redundancy among those adjacent frames that are coded as i - frame
然而事實上，相鄰多個i幀之間的信息上仍然也存在冗餘，本文的貢獻就在於利用了i幀間的冗餘進行幀間編碼，從而進一步提高了編碼性能。 -
Motion estimate is the key skill in video coding, a way of between frames coding. it bases on the theory of temporal correlation between frames, to reduce temporal redundancy
運動估計是視頻編碼的關鍵技術，它是一種幀間編碼的方法，其最基本的原理是利用幀間的時間相關性，減少時間冗餘度。 -
Interframe predictive coding is used to eliminate the large amount of temporal and spatial redundancy that exists in video sequences and helps in compressing them. motion eliminate can help to eliminate these redundancy. different kinds of algorithms use different criteria for comparison of blocks
它採用開放的編碼系統和新一代視頻編碼技術，它在視頻編碼發展史上第一次把編碼對象從圖像幀拓展到具有實際意義的任意形狀視頻對象，從而實現了從基於像素的傳統編碼向基於對象和內容的現代編碼的轉變。 -
This method can maintain the superiority of traditional wavelet transform to effectively remove temporal redundancy. in addition, owing to the feather of the integer form of wavelet lifting scheme, the computational complexity and memory requirement are reduced, which can enhance the performance of the wavelet video coding system
該方法能夠保持傳統小波變換的優勢，高效的去除時域冗餘信息，同時通過提升小波的整型變換能夠快速實現的特點，降低了計算復雜度，減小了內存需求，提高了小波視頻編碼器的性能。 -
In the optimal design of loop pipe networks, an improved genetic algorithm ( ipga ) based on integer coding is introduced in this paper. not only the problem of coding redundancy is avoided, but also the practicability and computation efficiency are greatly improved. also the optimal calibre combination scheme can be got within a larger solution space and the goal of less investment is realized
應用基於整數編碼的改進遺傳演算法進行環狀管網管徑優化設計，既可避免編碼冗餘問題，又可提高演算法的實用性和計算效率，並能在較大解空間范圍內獲得最優管徑組合方案以實現盡可能小的管網投資。 -
Furthermore, error resilience coding combined with wavelet image compression is also explored in the paper, which can improve error redundancy function and achieve higher bits transmission precision in scenario of low bit transmission
針對這種情況，在進行小波圖像壓縮編碼的同時，將其與容錯編碼演算法相結合，使得在以較小的比特量傳輸圖像的同時，增加容錯功能，提高了傳輸碼流的精確度。 -
Moreover, experimental results have proved that the method is robust enough to some image degradation process such as cropping, jpeg compression and sharpening etc. embedded zerotree wavelet coding ( ezw ) algorithm, it is found that this algorithm does not make full use of the properties of human visual system ( hvs ) to eliminate visual redundancy
實驗證明，該方法對剪裁、 jpeg壓縮和銳化等圖象退化處理均具有一定的抵抗力，是一種行之有效的水印嵌入方法。本文在對零樹編碼方法研究的基礎上，針對零樹編碼方法沒有充分利用hvs特性來有效消除視覺冗餘的缺點，提出了一種基於小波系數的零樹編碼方案。 -
In the simulation, its redundancy - rate - distortion performance is analyzed firstly, then the performance of error concealment and error resilience, the coding framework proposed in this paper are tested and compared with the mdc based on pct and sdc in error - prone environments, the results testify that not only the proposed mdc scheme has a better robustness but also a higher coding efficiency, which ensures reliable transmission of compressed digital video over networks
在模擬實驗中，首先對其冗餘率失真進行了分析，然後和基於pct的mdc及傳統單描述編碼方法在有突發錯誤及丟包壞境中，對錯誤隱藏和錯誤復原等抗誤碼性能進行了比較，結果表明：本文的多描述編碼在易錯環境中不僅具有更優良的抗誤碼性能，而且編碼效率較高，能夠保證在網路上視頻傳輸的可靠性。 -
The visual quality of decoded video information is improved at some extent and psnr value of luminance parts is increased nearly 1 db in error - prone channel. 4. an adaptively rd - optimal coding algorithm was proposed to be aimed at the computing redundancy in h. 264 recommendation algorithm
針對h . 264標準率失真優化編碼演算法中存在的計算冗餘過大問題，提出了一種自適應率失真優化編碼演算法，將h . 264標準演算法中求解解碼重構視頻信息期望失真度的代數和平均演算法，改進為加權和平均演算法。
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