space quantization 中文意思是什麼
space quantization
解釋
空間量子化- space : n 1 空間；太空。2 空隙，空地；場地；（火車輪船飛機中的）座位；餘地；篇幅。3 空白；間隔；距離。4 ...
- quantization : 分層量子化把連續量轉換為數字
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The performance of these methods typically depends on the color space, quantization, and distance measures employed for evaluation of the retrieved results
這些方法的性能特別依賴於色彩空間、量化和檢索結果的評估使用的距離測量。 -
Quantization of analytical space - time function of space - time wave
解析時空的量子化與時空波函數 -
According to the dirac constrain theory and the extended condition, we deduce the gauge generators, show the brst transformation of ( 1 + 1 ) dimension o ( 3 ) non - linear model under the new general condition. we first gain the new general commutation relations of ghost field, deduce the brst charge from gauge generator, complete the general brst quantization of the model, get green function, connecting green function and generating functional, gain three kinds of ward identities. at last, we complete the brst quantization of o ( 3 ) non - linear model with topological term in ( 1 + 1 ) dimensions space - time
最後依據dirac約束規范理論和推廣的條件，導出了規范生成元，推導出了1 + 1維o （ 3 ）非線性模型的新的一般條件下的brst變換，給出了其brst變換與dirac規范變換的等價性，首次得到了鬼場的一般對易關系，且其一般參數為零時就回到通常的鬼場的對易關系，第一次由規范生成元導出了brst荷，進而完成了此模型的一般的brst量子化，並在此基礎上進一步導出了此系統的green函數、連通green函數生成泛函和正規頂角生成泛函，獲得了三種不同的ward恆等式。 -
Based on the analysis of image wavelet transformation and the space / frequency distributing characteristics of different subbands " coefficients, this dissertation fully exploits the following theories and methods : scalar quantization, vector quantization, trellis coded quantization, trellis coded vector quantization, vector classification, codebook expansion and weighted mean square error rule basing mankind visual characteristics, etc. from different angles of information amalgamation, it develops several innovative algorithms of image compression and coding, gives their realization schemes, and makes plentiful simulation tests
本文在分析了圖像小波變換的原理和子帶系數空間及頻率分佈特點的基礎上，充分利用標量量化、矢量量化、網格編碼量化、網格編碼矢量量化、矢量分類、碼書擴展和基於人眼視覺特性的加權均方誤差準則等思想和方法，從信息融合的不同角度展開了對小波圖像的壓縮編碼研究，同時也討論了這些方法在靜止圖像量化中的具體應用。 -
Secondly, based on the shortage of full - image histogram, this thesis presents block histogram algorithm. thirdly, we study the image retrieval algorithm of color pair, and make the retrieval image having color similarity in space. finally, we apply hsv color - space corresponding to human visual characteristics to image retrieval, make use of human feeling on color to quantify the color weight, and analyze the two quantization methods
首先，對獲得的圖象進行預處理，使得圖象的顏色特徵能夠準確而方便的提取；其次，針對全圖直方圖的不足，提出了基於子塊直方圖的演算法；再之，在子塊直方圖的基礎上，研究了基於顏色對的圖象檢索演算法，使檢索結果圖象在空間上具有顏色相似性；最後採用了符合人類視覺特性的hsv顏色空間來進行圖象檢索，並利用人對顏色的感知對顏色分量進行了量化，對兩種量化方法進行了研究和討論。 -
The system is composed with six sections which are entropy decoder, inverse z transform, inverse quantization, inverse discrete cosine transform ( idct ), up sampling and color space transform
Jpeg解碼演算法主要由熵解碼、逆z變換、反量化、反離散餘弦變換、內插和色度空間轉換六部分組成。 -
It designs an algorithm applying 2djtcvq to image quantization, also gives analysis and simulation results of 2d - tcvq in image space domain
設計了二維tcvq應用於圖像編碼量化的演算法，給出了二維tcvq在圖像空域的模擬結果和分析。 -
Experimental results also show that for every quantization width, every scale in time and every scale in space, 3d - pcw not only achieves higher compression rate but also costs less time than 3d - escot
實驗數據也表明，對于每個量化幅度和每個空間及時間解析度， 3d - pcw不僅獲得了比3d - escot更高的壓縮比，而且演算法執行所需要的時間也更少。 -
The embedded bw also successfully survives cropping, filtering, noise and multi - watermarking etc. the new ideas the thesis proposed are : first, frequency - based watermarking idea using toral automorphisms is really a novel one, although, in the literature, there are some waterniarking schemes using toral autpmorphisms, all of which are based on space ; second, some improvements of the quantization function contribute to the algorithm ' s performances to some degree
另外該演算法對圖象裁剪、濾波、噪聲和多重水印處理等都具有較強的魯棒性。本文提出了兩個新思想：第一，雖然現有文獻已經提出了利用環形自同構映射的數字水印處理演算法，但這種演算法是基於空域的，而利用環形自同構映射基於頻域的水印處理演算法，目前文獻上未見報道。
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