畸變中心 的英文怎麼說

中文拼音 [jībiànzhōngxīn]
畸變中心 英文
center of distortion
  • 畸 : Ⅰ形容詞1 （偏） lopsided; unbalanced2 （不正常的; 不規則的）irregular; abnormalⅡ名詞[書面語] （零...
  1. A camera calibration method with co - line points is proposed, in which distortion center is located according to cross ratio invariability, and then distortion coefficients are calculated based on a line ' s central projection is a line

    摘要提出一種用共線點列標定攝像機鏡頭畸變參數的方法，先根據交叉比不變性確定畸變中心，再利用直線的中心投影仍為直線這一性質確定畸變系數。
  2. Abstract : to decrease bending and twist deformation of non - sym metry extruded sections, a new conception of local extrusion ratio and die band ratio has been set up, and also the formulas for the place of die hole on the ba sis of simulating test

    文摘:為減小非對稱型材擠壓的彎扭畸變，在試驗研究的基礎上，建立了局部擠壓比、擠壓帶系數的概念，擠壓筒中心與擠壓模孔型中心相對位置的計算式。
  3. In order to analyze the effect of aberration of amplitude and phase of laser beam on centroid position of focal spot, based on the fraunhofer formula for light wave scaler diffraction theory, according to the definition of first order moment centroid position, the general expression of focal spot centroid position directly depending on the complex amplitude of near field is derived

    摘要為分析振幅和相位發生畸變情況下光束焦斑質心位置所受的影響，以光波標量衍射理論中的夫瑯和費衍射公式為基礎，根據光斑強度分佈一階矩質心位置的定義，推導了直接依賴于光束近場復振幅分佈的焦斑質心位置的一般表達式。
  4. Test conditions for numerically controlled turning machines and turning centres - evaluation of thermal distortions

    數控立式車床和旋轉中心的試驗條件.熱畸變的評價
  5. Based on the unified recursive formula, the four algorithms included in this study are the central difference method, the newrnark ' s method, z - transform method, and duhamel ' s step integral method. the accuracy, the phase and other existent problem are studied in this paper. it is proved in this paper that the recursive parameters b1and b2are relate to the poles of theoretical transfer function

    分析中可以發現，中心差分方法， newmark中點加速度方法、 z變換方法及duhamel逐步積分法在精度范圍內其計算相位是沒有畸變的，中國地震局工程力學研究所頃土學位論文一但是中心差分方法， newmark中點加速度方法隨著采樣間隔及系統自振頻率的增大，系統的固有自振周期被改變，其傳遞函數的共振區域與理論傳遞函數的共振區域會發生分離。
  6. The emulation indicates that only if some measures are adopted to decrease the projection points ' coordinate error, error of the distortion center would be less than 2 pixels and relative error of the distortion coefficients would be no more than 0. 1

    模擬表明，只要採用相應方法降低像點坐標的誤差，畸變中心的誤差小於2個像素，畸變系數的相對誤差不超過0 . 1 。
  7. When the distortion effect is not considered, not all the points are selected, but those around the center of image whose distortions are relatively smaller

    當不考慮畸變效應時，選取圖像中心附近畸變較小的點代入求解，而不是選取所有的點。
  8. In this paper, in order to estimate coal storage volume in open stockyard, we have analyzed the optical triangulation and applied it to the measurement of large surface we have stated the measuring theory of distance with laser and the measuring theory of angle. we have also analyzed main factors influencing measurement precision and studied several key techniques in large - scale measuring such as the problem of non uniformly distributed of distance measuring resolution in large surface measurement, the methods of locating laser spot center and so on

    本文通過對火力發電廠露天煤場存煤量的自動檢測系統的研究，深入分析了光學三角測量方法的原理，並將其應用於大型曲面測量；闡述了激光測距原理和角度測量原理；對大型曲面測量的實現方法、畸變光斑圖像的幾何中心的準確定位等幾個方面的關鍵技術進行了探討；分析了大范圍測量時影響測量精度的主要因素。
  9. Calibration for camera scale factor and optical center based on the central non - distortion zone

    基於中心無畸變區的攝像機比例因數和光學中心的標定方法
  10. Nonlinear distortion in 2 - d image and calibration of camera ' s interior and external parameters are key techniques of photogrammetry

    二維圖像中的非線性畸變和拍攝圖像的相機參數標定，是攝影測量的技術核心。
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