centroid method 中文意思是什麼

centroid method 解釋
重心波長法
  • centroid : n. [物]矩心；質心，質量中心（＝centre of mass） 形心曲線；心跡線。
  • method : n 1 方法，方式；順序。2 （思想、言談上的）條理，規律，秩序。3 【生物學】分類法。4 〈M 〉【戲劇】...
  1. A new standardization method is proposed to solve the problem of the distorted image recognition, which is that the image ' s centroid was gotten based on the pixels total value of the whole image, and then the largest apothem and the rotated angle were obtained by the distance of the centroid and the image brim, last the object and the reference image adjusted the entirely same images in the scale and the rotated angle according to the uniform standardization

    由此，提出了基於圖像質心和最長邊的歸一化圖像處理新演算法：根據圖像像素總值求取圖像質心，根據質心和圖像邊緣輪廓點之間的長度求出圖像的最長邊和旋轉角度，然後根據統一標準將目標圖像和參考圖像調整至同一長度和旋轉方向的完全相同的圖像。
  2. 3. characteristic points are established through projecting images of regular points to measured surface. space dimidiate coding method which is called rough match and correlation technology, centroid technology, corner detect technology which are called precise match are used to acquire characteristic points accurately

    將空間規則點圖案投射到被測物體表面形成特徵點，然後利用空間二分編碼粗略獲得空間特徵點（稱為粗匹配） ，再利用自相關技術、質心技術和角點技術精確獲得空間特徵點的圖像坐標（稱謂細匹配） 。
  3. We presented a novel method of searching for similar fragments of 3d curves, with this method, a hash vector is associated with each fixed - length fragments of 3d sherd. each vector consists of low frequence component of fourier - like spectrum for the distance between profile curve and the centroid

    討論了基於hash矢量和fourier變換的輪廓曲線匹配方法，在匹配中不要求一段輪廓線與另外一段輪廓線完全匹配，而是把它們分成很多子段，再用這些子段來進行匹配。
  4. In this thesis a fuzzy control system used in voltage and reactive power auto regulatory device is designed based on the nine - zone controlling principle. in the fuzzy system, the fuzzy reasoning is mamdani method and the antifuzzy is centroid method. the software matlab is used to calculate the fuzzy system. the fuzzy system divide the voltage - reactive pane into fuzzy zone, in this way the domain - swing between closing domain is eliminated

    論文對電壓無功綜合控制技術進行研究，針對傳統九區域分區控制方法無視電壓與無功耦合的缺點，結合變電站電壓無功控制的實踐經驗，在傳統控制方法上引入模糊控制，設計了基於模糊控制的電壓無功綜合控制系統。模糊推理系統中採用mamdani型推理，非模糊化採用重心法，設計中使用matlab進行輔助設計和離線計算。
  5. The gpss have one output and two inputs which are speed error and its derivative. selecting triangular function as fuzzy variable ' s membership function, mamdani max - min synthetic method as fuzzy inference method and centroid method as denazification method, fuzzy control rules are given according to the control expectation of governor and the experience of operating staff

    這種模糊gpss採用二輸入單輸出結構，以機組轉速誤差及其導數為輸入量，以三角形函數作為模糊量的隸屬函數，根據水電機組穩定控制要求和操作人員的經驗制定控制規則，以mamdani的max - min合成法和重心法分別作為模糊推理方法和清晰化方法。
  6. A new method to estimate doppler centroid and doppler rate applicable to real flight condition is proposed

    該方法設置飛機速率和脈沖重復頻率比為常數，保證方位向接收信號均勻空間取樣，使用實時最小二乘擬合演算法。
  7. At the doppler centroid aspect, this paper make use of maximum value method ; energy method and autocorrelation function method to estimate doppler centroid. at the doppler frequency aspect, this paper make use of image offset method ; time - frequency method ; minimum entropy and fractional fourier transformation method to estimate doppler frequency rate

    在多普勒參數估計中，採用了最大值法、能量法和自相關函數法進行多普勒中心頻率估計;採用了圖像偏移法、時頻分析法、最小熵法和分數階傅里葉變換法進行多普勒調頻斜率估計。
  8. Based on the method, a tracking window method is adopted to track the target, and locate the position of target centroid by adjusting the window self - adaption

    本演算法採用動態窗口法，利用目標顏色的概率分佈特徵，鎖定目標的顏色分佈區域的質心，達到快速準確的跟蹤效果。
  9. To improve the performance of the traditional icp method for the large data models of mesh watermarking, this thesis develops a new icp variant based on the framework of mesh multiresolution analysis. the author presents a novel method for acquiring the initial approximate transformation in terms of the distribution feature of points around the centroid

    為避免迭代落入局部而非全局最優解，本方法利用網格的多解析度表示特性和網格上點到質心距離分佈的特徵信息，快速有效地確定初始矩陣。
  10. The paper takes the new method to pick up the tomato rgb color characters by the color information of the images. analyzing the pixels of the images, the tomatoes identifying result is r - g > 80. compute the centroid ' s coordinates of the tomatoes and orientate them on the images using the square method

    本論文所採用的新的演算法：根據所拍攝的番茄和葉子的圖像中rgb顏色信息來提取番茄rgb顏色特徵，通過對番茄和葉子圖像中像素的分析得到r - g 80為圖像中番茄的識別條件；並且計算質心坐標來定位圖像中的番茄，滿足了水果智能收獲機械中的迅速、準確識別的要求。
  11. Also, this method used the way of superviseing to get centroid, which making radial basis function neural network has better capability of classified

    此聚類方法採取有監督的學習方式，將訓練樣本的形心作為隱節點的質心，訓練樣本的分類數作為隱節點的個數。
  12. When snris below to some extent, the distortion of signal will be so great that the new randomshift invalidates the algorithm, so an improved adaptive centroid estimation algorithmis presented according to signal grouping and the principle of grouping is analyzed. correlation function algorithm is a classical method on shift estimation

    由於當信噪比低到一定程度時，有用信號的損失過大，會導致引入新的隨機時移，使演算法完全失效，因此通過將信號分組的方式提出改進的自適應質心估計演算法，並對分組的原則進行研究。
  13. In training process, we use kernel - based fisher discrimination analysis ( kfda ) method to train the input sample vectors. the method has been used in face recognition and has been demonstrated better recognition capability than other methods ( pca, kpca, svm ). we calculate the optimal subspace wopt and project the sample gait sequences to wopt, then get the tracks of the sequences, calculate the track centroid and calculate the exemplar projection centroid of the sequences in the same class, and the exemplar projection centroid represents the class template. to test the class of a gait sequence, we also project the test sequence to the eigenspace, and calculate the track centroid, then calculate the euclidean distance of the test sequence tracking centroid with the sample sequences ’ exemplar projection centroids. and the class which the test sequence belongs to is the one that the sample sequence which the euclidean distance is shortest belongs to

    該方法在人臉識別的研究中已有採用並在同樣測試條件下取得比其他識別方法更好的識別性能。採用kfda方法取得最優特徵空間wopt ，把步態樣本序列映射到wopt中，取得樣本序列在特徵空間中的軌跡，計算軌跡質心，把同類樣本序列的軌跡質心進行平均求得該類的標本投影軌跡質心，作為該類的模板。在識別時，將測試序列也投影到特徵空間中，取得序列軌跡質心，對測試序列軌跡質心與樣本的標本投影軌跡質心計算它們的歐氏距離。
  14. To effectively extract edges, edge pixels are classified according to the difference of intensity distribution, and multiple effective edge features are defined. edges are detected by applying fuzzy reasoning ( min - max centroid method ), based on local image edge characteristics

    該方法在重新定義邊緣特徵的基礎上，引入模糊推理理論，從而形成了基於多邊緣特徵和模糊推理的邊緣檢測方法。
  15. In order to acquire 3d spatial position and motion parameters of moving target, the limitation of second focus method to get the depth of target is analyzed according to perspective projection model of target centroid. then, the constraint for obtaining 3d position and motion parameters of moving target centroid from monocular image sequence is presented and proved in this paper. with this constraint, a nonlinear extended kalman filter algorithm for estimating 3d spatial position and motion parameters of moving target centroid from monocular image sequence is proposed

    進一步，為獲取目標的空間位置和運動參數等三維信息，在目標和成像系統都運動的情況下，根據目標質心的透視投影成像模型，首先分析了二次成像法獲取目標深度信息的缺陷；然後給出了由單目序列圖像獲取目標質心的空間位置和運動參數的條件，並提出利用多幀單目序列圖像和應用非線性擴展卡爾曼濾波演算法來估計目標質心的空間位置和運動參數；最後對提出的估計方法進行了多組模擬驗證，證明該方法可行有效。
  16. The used value of doppler centroid influence the imaging result very much, so it must be estimated precisely. the estimating methods contain time domain method and frequency domain method. time - frequency analysis method can be used to improve estimating precision

    多普勒中心頻率的取值對成像效果有很大影響，必須精確估計，估計方法有時域方法及頻域方法，還可利用時頻分析方法提高估計精度是。
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