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- It can be implemented by simple finite difference scheme with a significantly larger time step. 模型允許選取較大的時(shí)間步長(cháng)，可以用簡(jiǎn)單的有限差分格式實(shí)現。
- The numerical simulation of this model was analyzed through first-order upwind difference scheme and QUICK scheme. 通過(guò)一階迎風(fēng)格式及QUICK格式,求解出該模型的數值解。
- A clase of leap-frog finite difference scheme with higher stability propertiesfor a hyperbolic equation Ut+aUx=0 are proposed in this paper. 本文提出了一種數值求解雙曲方程Ut+aUx=0的高穩定性蛙跳顯格式。
- In order to capture the shock wave, Murman Cole type of finite difference scheme is used to calculate spatial source distribution. 用 Murman- Cole差分格式計算空間場(chǎng)源強度 ,以捕捉激波。
- The energy equations of the oil film and the bush are solved simultaneously by using an efficient finite difference scheme. 用一有效的有限差分法同時(shí)求解油膜和軸瓦的溫度控制方程。
- First，the original symmetrical differencing is improved.Then，background is reconstructed based on the symmetrical differencing results. 首先對對稱(chēng)差分算法進(jìn)行了改進(jìn)，然后基于對稱(chēng)差分結果進(jìn)行背景重構。
- The numerical solution of incompressible viscous flow over an aerofoil is obtained by H-type grids and a special difference scheme. 本文用H型網(wǎng)格和特殊的差分格式數值求解了粘性不可壓縮葉型繞流。
- A novel algorithm for moving detection, which employed adaptive background subtraction and symmetrical differencing method, was presented. 摘要提出一種基于動(dòng)態(tài)閾值對稱(chēng)差分和背景差法的運動(dòng)對象檢測算法。
- Then combining with the image information using symmetrical differencing method, a more reliable foreground image can be gained. 然后和對稱(chēng)差分法圖像綜合，得到完整可靠的運動(dòng)目標圖像；
- Based on this method, a difference scheme is derived for the numerical solution of diffusion equation on the structured quadrilateral mesh. 在此基礎上推導了在結構四邊形網(wǎng)格上求解擴散方程的線(xiàn)性精確差分格式。
- A finite difference scheme based on semi-vectorial wave equations is used to study the dispersion properties of photonic crystal fibers (PCF). 采用基于半矢量波動(dòng)方程的有限差分法研究了光子晶體光纖(PCF)的色散特性。
- With the illumination information processing as former procedure，this algorithm combined the merits of background subtraction method and symmetrical differencing method. 該算法結合了幀間差分與背景模型算法的優(yōu)點(diǎn)，同時(shí)引入亮度信息進(jìn)行前序的處理；
- Key words Partial integro-differential equation fractional calculus nvolution quadrature finite difference scheme second order fully discrete scheme. 本刊中 包含“偏積分微分方程;分數次計算;卷積積分;差分格式;二階全離散.
- A new background reconstruction algorithm is proposed to overcome the problems in the current algorithms，which is based on sub-blocks and employs symmetrical differencing. 摘要 針對現有的背景重構算法存在的問(wèn)題，提出一種新的算法，該算法基于子塊操作，利用對稱(chēng)差分重構背景。
- The paper introduces several methods for vision-surveillance using background subtraction,frame-difference method,symmetrical differencing and a method based on RGB image. 介紹了在視覺(jué)監控領(lǐng)域經(jīng)常用到的幾種運動(dòng)人體檢測算法,如背景減除法、幀差法、對稱(chēng)差分法、基于RGB圖像的運動(dòng)檢測法。
- This paper studies the necessary and sufficient condition of uniformly convergent difference scheme for the elliptic-parabolic partial differential equationwith a small parameter. 本文研究小參數橢圓-拋物偏微分方程一致收斂差分格式的充要條件。
- This paper generalizes the two dimensional Crank Nicholson difference scheme from constant coefficient to the condition of variable coefficient with interpolation by integral. 利用積分插值法，把二維Crank－Nicholson差分格式，由常系數推廣到變系數情形。
- In the case of large time step taken in calculation,implicit difference scheme is adopted in the discreted algebraic equations to ensure the numerical stability of the model. 通過(guò)選擇研究對象各環(huán)節的控制容積數和時(shí)間步長(cháng)，可使模型滿(mǎn)足精度和計算速度的不同需要，在大時(shí)間步長(cháng)時(shí)，采用了隱式差分格式，使得模型具有良好的穩定性。
- In this paper,a modified Dennis difference scheme for the advection-diffu- sion equation is given,which has the second order accuracy and the self adjust- ability. 本文改進(jìn)了關(guān)于對流-擴散方程的Dennis 格式,不僅保持了二階精度,且具有自調性。
- Compact finite difference scheme (CFDS) on non-uniform meshes and their truncation errors are constructed by matching the Taylor series coefficient expansion. 摘要采用泰勒展式系數匹配的方法構造基于非等距網(wǎng)格的緊致差分格式并得出了它的截斷誤差。
