波紋濾波器 的英文怎麼說
中文拼音 [bōwénlǜbōqì]
波紋濾波器
英文
ri le filter- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 紋 : 名詞(花紋; 紋縷兒) lines; veins; grain
- 濾 : 動詞(除去液體雜質) filter; strain
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 波紋 : corrugation; flow mark; moire; cockles; dimple; washmarking; [電工] ripple
- 濾波器 : [電子學] electric filter; (electric) wave filter; filter
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We excogitate the gabor filter based - on sub - block texture analyse to extract the feature of iris normalized image and encode them. then, we use hamming distance to match two iris codes. in order to reduce the rotation of iris, we work out a new method
4 .研究出基於子塊紋理分析的gabor濾波器方法來對虹膜歸一化圖像進行特徵提取和編碼;在虹膜編碼匹配中,本論文採用hamming距離來進行編碼之間的匹配。The journal of physiology, 1968, 195 : 215 - 243. 15 zhu s c, wu y n, mumford d b. frame : filters, random fields and maximum entropy - towards a unified theory for texture modeling
對前一個問題,我們首先針對文檔圖像中的典型紋理模式,找到了一組最有代表性的濾波器和統計特徵,由此構成演算法所需的紋理特徵。At first, the paper confirms singular area by singular detection, then designs a series of low - pass filters that have different templates according to the different position in finger image for a local area, at last sets up gabor filter parameters according to the characteristics of fingerprint image. the improved enhancement algorithm has a better robust, and can preserve texture structure of singular area effectively. in binary noise clearance, the paper presents an algorithm that clears the biggish white speckles and black speckles
在指紋圖像增強方面,本文針對傳統的基於gabor濾波器指紋圖像增強演算法魯棒性差以及通常會改變奇異區紋理結構的缺點,對原有演算法進行了一些改進:首先通過檢測奇異點確定奇異區,然後根據局部區域在指紋圖像中的位置構建相應取值方式的低通濾波器並對該局部區域方向圖進行濾波,最後根據指紋圖像紋線的特點對gabor濾波器參數進行設置。In 2000 passed theiso9001 quality system authentication, the main camp product includes : the filter, filters the separator, the oil - water separator, thesilencer, cuts shui qi, the respiration valve, the fire resistance, the hydraulic pressure safety valve, kong leijian, the metal vlexiblehose, the ripple compensator, fluctuates under the oil installment, the pot the sampling, the crane tube, lightly falls the springboard, the steel structure trestle, the liquid level indicator, the oilinterceptor, the heater, regards product and so on boundary
2000年通過了iso9001質量體系認證,主營產品有:過濾器、過濾分離器、油水分離器、消聲器、切水器、呼吸閥、阻火器、液壓安全閥、孔類件、金屬軟管、波紋補償器、浮動出油裝置、罐下采樣器、鶴管、輕落跳板、鋼結構棧橋、液面指示器、阻油器、加熱器、視境等產品。In this paper, we firstly design orientation filters based on directional image of fingerprint and employ them to denoise gray - scale image. then, we binarize the gray - scale image with local self - adaptive binarization smoothness algorithm and eliminate the noises from the binary image with fast fourier transform algorithm
本文先基於指紋的方向圖設計出方向濾波器對原圖像進行濾波去噪,然後使用局部平滑閾值自適應二值化演算法,將灰度圖像進行二值化,並採用快速傅氏變換對所得到的二值化圖像進行去噪處理。Secondly : i choose a non - linear filter named hybrid filter which combines linear and nonlinear filters is proposed for print gray image, it performs better than average fil ters and median filters on noise reduction. while retaining edges of an image. i suggest a modified version and fast implementation of this filter improve its performance. because of its reduced computation complexity, this filter excels in real - time tasks
因為噪聲時常包含非線性問題,針對這種情況,既要抑制噪聲,又要保護圖像邊緣,本文採用一從度指紋圖像上噪處理研究種基於線性,非線性的混合濾波器演算法,該演算法比均值濾彼器,中值加權濾波器,格形濾波器,具有更好的抑制噪聲的能力,不但較好的保持圖像地邊緣,而且能反映圖像的幾何結構和細節特性。The specification is that the cutoff frequency must be more than 15mhz, the maximum passband ripple must be 0. 2db and the minimum stopband attenuation must be 40db
該濾波器要求截止頻率大於15mhz ,通帶最大紋波為0 . 2db ,阻帶最小衰減為40db 。It can generate high - stable and linear current signal and utilize butterworth low pass filter to eliminate the noise and ripple in the signal. according to the different functions of different pins, this circuit can modulate and control the output power of the laser diode and modulate the laser signal, which makes this laser diode driver have more valuable application. in the last part of the paper, the feasibility of the theory is validated by experiment data
其次,根據ic - wkn的內部電路和不同引腳的功能,設計了一套由d / a轉換器和單片機組成的信號調節電路,使之能夠輸出具有良好的穩定性和線性特性的電流調節信號,並選擇巴特沃茲低通濾波器來濾除信號中的紋波和干擾。Weintroduced them into song correlation, presenting pof based on song decomposi - tion ( pbs ) and song decomposition based fringe - adjusted joint transform corre - lation ( sbfjtc ), and their optoelectronic hybrid implementation setups. in pbs andsbfjtc, the sub - linear correlations in the definition of song correlation are sub - stituted by pof and fringe - adjusted joint transform correlation respectively. simula - tion results show that introduced pof and faf perfectly smooth away the extraneous
我們把這兩種方法應用到song相關器中,提出了基於song分解的純位相濾波器( pofbasedonsongdecomposition ,簡稱pbs )和條紋調節聯合變換相關器( songdecompositionbasedfringe - adjustedjointtransformcorrelation ,簡稱sbfjtc ) ,以及它們的光電混合制備系統。Iris feature extraction is based on texture analysis using multi - channel gabor - wavelet filtering
特徵提取階段,採用多方向多頻率的gabor濾波器來進行圖像紋理特徵分析。The application of gabor filter in fingerprint segmentation
濾波器在指紋圖像分割中的應用The multi channel gabor filter is designed based on theory and practicality, the texture features of gray image target are extracted
根據理論分析和實際需要,設計了多通道gabor濾波器,提取了灰度圖像目標紋理特徵。Different fonts are regarded as different textures, then font is identified through texture analysis with multi - channel gabor filters
將不同字體的文本看作不同的紋理,使用多通道gabor濾波器的紋理分析方法識別字體。The gabor filter is used to extract the characteristics. in this method, the jet which is a kind of the multi - scaled analysis methods is used, and get a good result
本文使用gabor濾波器,多尺度提取方向特徵,在對方向性強的紋理特徵的分割中有很好的效果。Through introducing some other highly developed filtertechniques into sbnc, further improving the performance of sbnc is just the themeof my dissertation. phase - only filer ( pof ) and fringe - adjusted filter ( faf ) are two kinds of filter - ing techniques widely used in pattern recognition with good output performance
純位相濾波器( phase - onlyfilter ,簡稱pof )和條紋調節濾波器( fringe - adjustedfilter ,簡稱faf )是兩類性能優良且在模式識別領域得到廣泛應用的濾波器技術。People often think about the filter ' s characters of orthogonal, symmetry, regularity, but seldom synthetically think about some factors such as image texture or compression rate. in this paper used the same adaptive arithmetic coder for many filters, analyzed the effect factors synthetically for the best wavelet compression, and give some methods for selecting filter
本文對多種常見濾波器,採用相同的自適應量化編碼方法進行實驗,研究並分析了選擇濾波器時應該考慮的圖像紋理、濾波器長度、壓縮比等一些綜合因素,有效解決了在小波圖像壓縮過程中,如何更好的選擇濾波器的問題。The interleaver with channel spacing of 50ghz is designed and prototype device is achieved. we test experimentally the interleaved spectrum in the c - band which is rectangle with ripple of less than 0. 1 db. and through measuring its time delay, we obtain the character of its dispersion. a novel architecture of 50ghz mfpi interleaver with different passband widths is put forward at first
2 、設計了通道間隔為50ghz的mgti型interleaver濾波器,獲得了該濾波器的原型器件;實驗得到了該器件在c波段兩組交錯分波的矩形化光譜,其紋波小於0 . 1db ,通過對器件時延的測量,間接獲得了其色散特性;首次提出mfpi型不等帶寬50ghz的interleaver濾波器技術方案。Then adjust the parameters of gabor filter using the orientation and average ridge frequency at each pixel to realize adaptive filtering. the unrecoverable region is segmented based on orientation certainty. experimental results show a very good visual enhancement effect
求出每個象素點處的紋線方向和方向一致性,以及紋線的平均頻率,用方向和平均頻率調節gabor濾波器對每個象素點進行自適應濾波,並利用方向一致性分割出不可恢復區域,實驗表明具有很好的增強視覺效果。Methods in space / frequency domain : a group of gabor filters are used in texture - based image retrieval ; by analyzing how the energy changes with the decomposing of wavelet, tree - structured wavelet transform in texture - based image retrieval is selected to use. as for similarity measurement of texture - based image retrieval, this paper demonstrates two data models related to the similarity measurement and proposes two kinds of multi - feature combination structures
在空間頻域聯合的方法中,將構造的一組gabor濾波器用於圖象紋理檢索;通過分析紋理圖象經過小波分解后的能量變化特點,提出了選用樹型小波分解方法用於紋理檢索,提高了檢索的有效性。Second, in this paper, we also research the arithmetic of wavelet and fractal, at last give a method to synthesize the two technologies. through experiments testify this method is feasible. choice of filter in wavelet image compression is a critical factor which affects image compression quality
選擇濾波器時,人們一般考慮正交性、對稱性、正則性、支撐集和消失矩階數等濾波器本身的性質,卻很少將他們與圖像紋理特徵、濾波器長度、壓縮比等因素綜合起來考慮。分享友人