正圖像相位 的英文怎麼說
中文拼音 [zhēngtúxiàngxiāngwèi]
正圖像相位
英文
positive picture phase- 正 : 正名詞(正月) the first month of the lunar year; the first moon
- 圖 : Ⅰ名詞1 (繪畫表現出的形象; 圖畫) picture; chart; drawing; map 2 (計劃) plan; scheme; attempt 3...
- 像 : Ⅰ名詞1 (比照人物製成的形象) likeness (of sb ); portrait; picture 2 [物理學] image Ⅱ動詞1 (在...
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 相位 : phase position; phase
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In case 6, the heart looks " inverted " compared to normal ( figure 8 ). this phenomenon is called dextrocardia, and it results from a looping anomaly during embryologic development
病例6中的心臟與正常相比看上去就像「反轉」了一樣(圖8 ) ,這稱作右位心,是由於胚胎發育過程中的心臟成環異常導致。In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )
主要研究內容包括:一、總結分析了當前水下導航的常用方法和不足之處,指出基於航位推算的導航方法,存在著最大的問題就是導航誤差的積累問題,如果沒有修正系統,這種方法很難滿足使用要求;其次指出基於聲學的導航方法,造價昂貴,導航范圍有限,難以滿足自主水下航行器大范圍導航的需求;二、總結了當前水下地形輔助導航的主要技術路線,一是基於地形高程的匹配方法,這是當前研究的重點;二是基於地形圖像的匹配方法,由於缺乏良好的圖像傳感器,和可用的海底圖像地圖,目前這種方法還有待研究發展;三、將兩種地形高程匹配的常用方法應用到自主水下航行器上:以相關演算法為前提的地形輪廓匹配( tercom )方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航( sitan )方法,前者演算法簡單可靠,但是導航精度不高,後者雖然精度比較高,但存在著演算法較為復雜、有可能發散和出現奇異值等問題。Secondly, in phase unwrapping to overcome the spread of wrong point, changing the patch of unwrapping phase is done to improve the correctness of it. then, the relation between the unwrapping phase and the height of reconstructed object is discussed detailedly. the data processing, algorithm analysis and reconstructing object are done for the collecting fringe image which are all based on matlab language, in all these achievements, the improvement and innovation aspect are following : a ) in order to stabilize the interference fringe, a new equivalent shifting object method is presented by using fringe stabilizing device to stabilize the interference fringe though moving object and ccd camera which fixed on a precise moving platform together, the experimental result shows the fringe drift is less than a / 20 in five minutes, and the equivalent phase shifting precision is x / 100
論文在全面闡述了光學三維輪廓位相測量術的發展、應用現狀、研究熱點及未來發展趨勢的基礎上,簡要介紹了傅立葉變換和相移位相輪廓測量術的基本原理,對兩種測量方法存在的問題及誤差進行詳細分析和比較;針對位相解包裹錯誤點的傳播問題,作者通過改變解包裹路徑來提高位相解包裹的正確性;分析討論從解包裹位相( x , y )到再現物體的高度h ( x , y )物理量之間的關系,研究相應的演算法,利用matlab平臺,對實際採集的條紋圖像進行處理和輪廓重構,其中改進及創新工作主要表現在以下兩個方面: ( a )針對干涉型結構光場干涉條紋出現的漂移抖動對相移的影響,提出了一種用條紋穩定器穩定干涉條紋,用精密移動平臺使物體和ccd攝像頭同步移動實現等效相移的方法,建立了相應的測量系統,系統的條紋穩定可以達到。Utilizing the idea of sfs ( shape from shading ) and the facial constrained information, we reconstruct face model by single frontal face image. we utilize orthogonal image method to generate individualized face model by adjusting the parameters of the candide - 4. we realize an algorithm based on minimum features for rapid face modeling from video, by tracking feature points, calibrating exterior parameter, estimating 3d location of feature points
利用shapefromshading的思想和人臉的約束信息實現了基於單幅正面人臉圖像的重建;以candide - 4的參數調整為手段實現基於兩幅正交圖像的人臉模型重建;通過跟蹤視頻中的特徵點,標定相機外參,進而估計特徵點的3d位置,實現了基於一段視頻中小特徵點集的人臉建模演算法。Via this neural network, we can eliminate those regions which contain no plate and then use color information to modify the correct region and find the accurate position of car plate finally ; 3 ) in the progress of recognition, we apply the structural alternative covering algorithm and only use some basic techniques to process the image
將構造性的覆蓋演算法應用於牌照的定位,在對這些區域進行分析后提取出各自的特徵並進行學習,構造出相應的神經網路,用來排除假的干擾區域,同時結合圖像的顏色信息來對前期的定位結果進行修正,最終得到正確的車牌位置: 3In this stitching algorithm, the operator should select two characteristic regions in one of the two pictures that are to be stitched. then the algorithm will search the two best - matching region in the other picture, compute the angle of the rotary between the two pictures, rotate one of the two pictures, then stitching the picture, thereby the rotary error is corrected
這種拼接演算法由用戶在待拼接的一幅照片中指定兩個參照特徵區域,並在另一幅照片中搜索兩處最佳匹配區域,根據這四個區域的位置確定兩幅照片的相對旋轉誤差,然後反向旋轉其中的一幅圖像,再進行對接,從而糾正了兩幅照片的旋轉誤差。The algorithm, basing on convolution filtering technique and the fringes " gray values max - min distribution, can automatically and accurately carry out space frequency spectra shifting without spectra analysis and spectrogram in the technique of phase method of projected grating for 3 - d object shapes measurement. the new algorithm makes image processing much caster and the technique of object shapes measurement more automated. the phase error caused by filtering and the crossed - optical - axes geometry setup is also discussed
本文採用投影光棚相位法和數字卷積濾波技術:根據柵線的條紋灰度值分佈具有極大極小分佈的特性,提出卷積濾波形貌光學自動檢測的圖像處理方法,有效地實現了頻譜自動移位,從而進一步提高了圖像處理的速度和形貌測量技術的自動化程度;同時對採用兩光學主軸相交,且非遠心投影系統所產生的誤差進行了分析,並提出了修正方法。The coordinate systems and time systems are described in detail at first, then the paper presents the whole algorithm containing line of sight generation and projection attitude data combination scan mirror calibration, find corresponding grid cell, resample. at the same time, scan gaps and detector delays are analyzed in detail
論文首先對校正過程中用到的時間系統和坐標系統作了介紹,然後給出了完整的校正演算法,包括視線產生和投影、姿態合成、掃描鏡校正、尋找校正圖像空間像素到未校正圖像空間的對應像素位置、重采樣這幾個部分,並在相鄰掃描行間隙的插值上採用了簡潔的方法。An algorithm for detecting moving ir point target in complex background is proposed, which is based on the reverse phase feature of neighborhood ( rpfn ) of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign. firstly, pairs of points with rpfn are detected in the difference image between neighbor frame images, with which a virtual vector graph is made, and then the moving point target can be detected by the vectors ' sequence cumulated in vector graphs. in addition, a theorem for the convergence of detection of target contrail by this algorithm is given and proved so as to afford a solid guarantee for practical applications of the algorithm proposed in this paper. finally, some simulation results with 1000 frames from 10 typical images in complex background show that moving point targets with snr not lower than 1. 5 can be detected effectively
基於運動點目標在鄰幀差分圖像中所具有的近鄰反相特徵,即運動點目標的兩個位置相鄰近、灰度值一正一負,提出一種在復雜背景下,基於紅外序列圖像的運動點目標檢測演算法.本演算法利用該特徵在鄰幀差分圖像中檢測反相點對,進而構造反相點對矢量圖,最後依據累積反相點對矢量圖中多矢量首位相接的連續性檢測出運動的點目標.文中給出並證明應用本演算法能以概率1檢測到運動點目標的收斂性定理.對典型復雜背景下10幅1000幀圖像的模擬結果表明,當信噪比大於或等於1 . 5時,可以有效檢測出運動點目標The constitutions and principles of position of gps > glonass and beidou navigation system are described all around in this article, and the following technologies are studied and realized : communication between com ports with oop technology, compound navigation with gps and glonass. calculate velocity, pseudorange difference, smoothing pseudorange with the carrier - phase and models to correct error are also done ; the transforms between wgs - 84 and pz - 90, as well as wgs - 84 and beijing54 coordinate system ; the technologies to display and manage bitmap, vector map based on mapx also ; conversion of data formats between gjb and mif data format of maplnfo corp. arithmetic of creation dem data based on contour line data from 1 -. 25000 map data with gjb format. texture the surface of terrains with corrected aviation image
本文全面介紹了gps 、 glonass 、北斗導航系統的組成、定位原理,研究並實現了面向對象的串口通信技術、 gps + glonass組合導航、測速及偽距差分、相位平滑偽距差分以及有關誤差的模型改正、 wgs ? 84和pz ? 90 、 wgs ? 84和北京54坐標系的坐標轉換、柵格地圖的顯示和管理、基於mapx的矢量地圖的顯示和管理、 1 : 25萬軍標數據和mapinfo的mif數據格式雙向轉換、基於軍標數據的dem生成演算法、基於opengl的三維地形構造、航空圖像紋理地形表面、三維坐標量算、虛擬現實模擬導航、三維地形的層次細化演算法以及數字圖像處理中的圖像增強、幾何變換、影像匹配等技術。So far, existing brain function evaluation techniques includes electroencephalogram ( eec ), magnetoencephalogram ( meg ), positron emission tomography ( pet ), functional magnetic resonance imaging ( fmri ) etc. among them, the technique using event - related potential ( erp ) contained in eeg features high temporal resolution, low costs and convenient application
到目前為止,探測大腦活動的方法有eeg (腦電圖) , meg (腦磁圖) , fmri (功能磁共振成像) , pet (正電子發射斷層掃描)等。其中利用包含在eeg中的erp (事件相關電位)進行的研究,能達到毫秒級的高時間解析度,而且器械成本低應用方便,對探索人腦瞬息萬變的信息處理機能(認知機能)無疑是很有幫助的一項技術。By taking advantage of parallel lines and orthogonal lines in architecture, the camera internal parameters, rotation and translation can be recovered from a set of un - calibrated images via computing absolute conic and vanishing points. the euclidean 3d model of architecture ( up to a scale factor ) can be recovered too
利用建築物中常見的平行直線和正交直線等特點,通過絕對二次曲線和消影點等射影幾何量的計算,可以從圖象中恢復攝像機的內參數、旋轉和平移位置,同時恢復建築物的三維歐氏幾何模型(相差一個尺度因子) 。The angle spectrum of inputting optical signals is received by the input surface of arrayed waveguides. whereas the diffraction process of light beam outputed in slab waveguide is a process of " composing frequency and generating image ". the reason that fraunhofer diffractive pattern can be gained on outputting waveguide surface is that output ends of arrayed waveguide distribute on the arch structure which leads bent phase factor to offset the quadratic phase factor in fresnel diffraction
輸入平板波導內光束的衍射過程是「分頻成譜」的過程,在陣列波導的輸入面接收到的是輸入光信息的角譜;而輸出平板波導內光束的衍射過程則是「合頻成像」的過程,正是由於陣列波導輸出口排列分佈在圓弧形結構上,其彎曲位相因子消去了菲涅耳衍射中的二次位相因子,從而在輸出波導面上能夠得到夫瑯和費衍射圖樣。Finally, a new 3d surface ranging method based on a digital fringe projection and shifting technique is systematically studied and non - linear rectification algorithms which reduce measurement error is proposed. at the same time, the noise - immune phase unwrapping algorithm is deeply studied and a new algorithm for phase unwrapping of phase map is proposed. experiment make known the algorithm can reduce measurement error, bypass the noise points automatically, solve the problem of the shade sheltering or cavity, overcome the error propagation problem and better results have been obtained
論文最後系統研究了基於數字相移條紋投影曲面三維測量方法,創造性地提出了一種減小測量誤差的非線性校正演算法,取得了預期的效果;同時對相位去包裹演算法進行了較深入研究,提出了一種噪聲圖像相位去包裹方法;實驗表明該方法能減小非線性測量誤差,自動避開噪聲點和間斷點,獲得了滿意的結果。For the positive real function image encoded by double random - phase, the first random - phase mask placed in the blank can not serve as the key when the decrypted image is detected by intensity detector in the decrypting process
摘要正的實函數圖像通過雙隨機相位編碼加密以後,在解密過程中,用光強探測器接收解密圖像時,位於空域的第1塊相位掩模不起密匙作用。Be different from orthogonal wavelet transform, biorthogonal wavelet transform has linear phase and can reconstruct signals exactly
與正交小波變換不同的是,雙正交小波變換具有線性相位特性,可以精確地重構圖像。The paper proposes a novel learning algorithm for precise phase control of oscillatory neural networks. a target oscillator is employed to temporally synchronize correlated objects in an input binary image while uncorrelated objects are desynchronized via adjustable phase shift that is proportional to their spatial position. the proposed learning rule has a fast convergence, and can achieve an extremely small phase error
設計了一種新的神經元振蕩器網路快速同步學習演算法,該演算法能保證同組的振蕩器達到完全同步;同時,採用相位延遲方法,使不同圖像目標的振蕩器組的相位延遲正比于其在空間上的距離,實現目標對象的分離與提取This paper emphatically researches some typical search algorithms based on block matching of motion estimation, such as 155, fss, tdl, cs and ds. aimed at questions existing in these algorithms, under the elicitation of man vision system, the author designs a new integrative pattem ( sdp ) ftom the bionic view, which shows a parallel processing idea of coarse location and accurate orientation, and then presents a new square - diamond search ( sds ) algorithm for block matching motion estimation. the results of experiment prove that not only the new sos is much faster than above traditional algorithms, but also its psnr and visual quality of the retrieval images are better than those of other algorithms, and as nearly good as that of fs
本文重點研究了三步法( tss ) 、四步法( fss ) 、二維對數法( tdl ) 、交叉法( cs )和菱形法( ds )等經典的基於塊匹配的運動估值演算法;針對它們存在的問題,在人眼視覺系統的啟發下,從仿生學的角度設計了一種新的綜合模板( sdp ) ,它體現了粗定位和準確定位并行處理的思想,在此基礎上提出了一種新的用於塊匹配的搜索演算法?正方形?菱形搜索( sds )演算法;實驗證明:該演算法的搜索速度比fs 、 tss 、 fss 、 tdl 、 cs和ds都快,而且根據運動矢量恢復出的圖像在psnr和主觀視覺效果方面都和fs相當,比其它演算法要好。The sphere images of 10 balls were captured at 3 different positions as the flat cards. it is proved that curvature of object have no influence on hue distortion in this machine vision system, basically. so distorted hue of balls can be corrected by the model of corresponding position flat cards directly
5 、分別在上述三個位置採集10種顏色的球面圖像,驗證了在本研究所用機器視覺系統內,物體表面曲率對色度失真基本沒有影響,因此,對于球面物體的色度失真,可直接應用相應位置的平面色卡色度失真校正模型進行校正。分享友人