We estimated the weighted mean differences or standardized mean differences , with their 95 % confidence interals , in mechanical axis alignment , duration of surgery , and functional scales between naigated and conentional surgery 對于導(dǎo)航和傳統(tǒng)術(shù)式的力軸校直、手術(shù)時間和功能得分,我們計算了加權(quán)均數(shù)差值或標準均數(shù)差值的95 %可行區(qū)間。
In this paper , by using the relevant data of zhejiang province in 2005 , we introduce the weighted mean method , principal component analysis , factor analysis and clustering analysis to evaluate and rank the synthetic economic power of the 11 main cities of zhejiang province 摘要利用浙江省2005年有關(guān)統(tǒng)計數(shù)據(jù),分別采用加權(quán)平均法、主成分分析法、因子分析法和聚類分析法對浙江省11個中心城市的綜合經(jīng)濟實力進行了綜合評價和排位。
Then the local weighted mean method is used to register the image distortions . this method can not only successively register the local geometric distortions but also fit for the infinite length image registration . images are registered and exported with sequential subsections 然后以局部加權(quán)平均的表面擬和方法對失配圖像做幾何校正,該方法既有效地校正了遙感圖像中的局部幾何畸變,又適合于針對無限長圖像進行數(shù)據(jù)流式的分段配準輸出。
In order to real - time detection of netwok anomalies , an algorithm based on steady model is proposed . both weighted mean value and variance statistics method are used to build and update the steady model . furthermore , roc curve method is used to assess performance 為了實現(xiàn)異常檢測的實時性,提出一種基于穩(wěn)態(tài)模型的流異常檢測算法,采用加權(quán)均值和方差計算相結(jié)合的統(tǒng)計學(xué)方法對網(wǎng)絡(luò)流量進行穩(wěn)態(tài)建模和更新,并使用roc曲線進行異常檢測模型的性能評估。
Afterwards , in order to decrease the contradiction between the more complex and mass remote sensing image data and relatively slow speed of information extraction , an improved sfim image fusion method is proposed . this modified algorithm is on the base of sfim fusion technique , combines ihs method and sfim method and then replaces the former mean filter by an adaptive weighted mean filter . compared with the results of several common fusion techniques through a set of simulation tests between multispectral images and panchromatic images , it is proved that the new method can get an excellent result for the aim of improving spatial resolution while preserving the spectral information of multispectral images 論文的主要工作和成果包括:在像素層,論文研究了多傳感器數(shù)據(jù)融合理論及遙感圖像預(yù)處理的過程和步驟,歸納了多源遙感圖像像素層融合的常用算法,并針對目前遙感數(shù)據(jù)呈海量化、復(fù)雜化這一發(fā)展趨勢同遙感信息提取的能力和效率滯后這一矛盾,在sfim算法的基礎(chǔ)上,將ihs變換與sfim相結(jié)合,將原算法中的均值濾波器改進為自適應(yīng)加權(quán)均值濾波器,提出了一種改進的sfim算法,通過對一組多光譜圖像和全色圖像的雙傳感器融合仿真對比試驗,證明了該算法在保持原多光譜圖像光譜信息的同時,能夠有效提高融合圖像的空間分辨能力。
Abstract : starting from the definition of weight , the paper derives the relaton detween the change of the a priori unit weight weight mean error with the result of adjustment . lt is found that the change has influence only on the exploring effect of the posteriori unit weight mean error and gross error and the coordinated factor matrix , and no influence on all other adjustment results 文摘:該文從權(quán)的定義出發(fā),導(dǎo)出了先驗單位權(quán)中誤差的變化與平差成果的關(guān)系,發(fā)現(xiàn)其變化僅對驗后單位權(quán)中誤差、粗差探測效果和協(xié)因數(shù)陣有影響,對其它平差成果均無影響。
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(shù)空間及頻率分布特點的基礎(chǔ)上,充分利用標量量化、矢量量化、網(wǎng)格編碼量化、網(wǎng)格編碼矢量量化、矢量分類、碼書擴展和基于人眼視覺特性的加權(quán)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(yīng)用。
Abstract : to evaluate the power equipment of armored vehicles effectively , this paper raises the evaluation indexes of its tactical and technical effectiveness level , and gives the integrated evaluation of the power equipment of the russia typical armored vehicles by using weighted means method 文摘:為了對裝甲車輛的動力裝置進行有效地評價,該文系統(tǒng)的介紹了反映其戰(zhàn)術(shù)一技術(shù)效能水平的評價指標,應(yīng)用加權(quán)平均的評價方法對俄軍典型裝甲車輛的動力裝置進行了綜合評估。
In the aspect of detection and high precision estimation of seafloor backscattering , algorithms of fast convergence of energy center and correlation of eigen - replica were developed . also studded were processing methods of weighted mean time ( wmt ) and bearing direction indicator ( bdi ) based on fft beam forming as well as high precision detection and estimation of time of arrival ( toa ) and direction of arrival ( doa ) using split beams phase difference detection technique 圍繞海底反向散射信號的高精度檢測和估計技術(shù),開發(fā)了快速能量中心收斂算法和特征模型相關(guān)算法,研究了基于fft波束形成的加權(quán)時間平均與方位指示處理方法,并討論了利用分離波束相位差檢測技術(shù)的海底反向散射信號到達時間( toa )和到達方向( doa )的高精度檢測與估計方法。