quantization step造句
例句與造句
- A robust image blind watermarking algorithm based on adaptive quantization step in dwt
域自適應(yīng)量化步長的圖像盲水印算法 - The algorithm is based on the optimum quantization step for each dwt coefficient according to psychovisual considerations which derived from methods in image compression
本文的算法基于圖像壓縮算法中利用心理視覺給出的dwt系數(shù)的最優(yōu)量化步驟。 - This paper can put into four parts ? this first part is the description and theoretical analyses of source coding , which focus on the research of optimizing equal quantization ? the second part presents the theoretical description of joint channel - source coding , which focus on the research of combined channel - source coding o the third part is about the application of combined channel - source coding to two different channel models , binary symmetric channel and cdma channel o in this part , two different coding designs are given according to different characters of these two channels ? and the last part is the description of simulation of combined channel - source coding ? most of my work are about two parts , one is to find the most appropriate quantization steps and centroid points of separate channel - source coding , another is to simulate the combined channel - source coding ? comparing the simulation results of separate channel - source coding and combined channel - source coding , the characters of joint channel - source coding are given
本論文可以分成四部分:第一部分給出了信源編碼的基本概念和理論分析,重點(diǎn)放在最優(yōu)均勻量化編碼的研究方面;第二部分給出了信道?信源聯(lián)合編碼的原理敘述,重點(diǎn)放在復(fù)合式信道?信源編碼的分析研究上;第三部分將信道-信源聯(lián)合編碼原理應(yīng)用在兩種噪聲信道上:離散無記憶信道和cdma信道,并根據(jù)兩種信道的不同特點(diǎn)詳細(xì)描述了兩種相應(yīng)的編碼設(shè)計(jì)方案;第四部分給出了復(fù)合式信道-信源編碼的仿真結(jié)果以及對結(jié)果的相應(yīng)分析。 - As human eyes are more sensitive to the low coefficients than to the high coefficients , a preprocessor is employed to remove part of the high coefficients and a visual property factor is introduced to increase the quantization step in complex regions while decreasing the quantization step in flat regions
該策略利用人眼對圖像低頻分量比對高頻分量敏感的特性,先對圖像進(jìn)行預(yù)處理,去掉部分高頻分量,并在量化時(shí)引入視覺特性因子以加大圖像復(fù)雜區(qū)的量化而減小圖像平坦區(qū)的量化。 - The adaptation processing includes linear prediction coefficient adaptation and adaptation of quantization step size for residual signals . based on g . 726 , we adopt a huffman coder to make use of probability statistic of bit cascade covering n ( n 1 ) samples generated from adpcm , in order to further reduce the bit rate . ng is lossless entropy coding , the speech quality of our improved algorithm should be same as that of g . 726 standard
我們的研究和改進(jìn)工作包括:研究最優(yōu)非均勻自適應(yīng)量化器,及其自適應(yīng)算法;研究波形預(yù)測函數(shù),以及函數(shù)零點(diǎn)、極點(diǎn)的自適應(yīng)算法;基于每n ( n 1 )個(gè)樣本所對應(yīng)符號(hào)的概率統(tǒng)計(jì),對預(yù)測殘差量化值再進(jìn)行huffman編碼,進(jìn)一步降低比特率。 - It's difficult to find quantization step in a sentence. 用quantization step造句挺難的