ffd是什么意思   ffd怎么读

ffd单词基本解析：

ffd变化用词：

ffd英英释义：

ffd中文词源：

ffd用法和例句：

ffd

one wave prestack migration code using ffd method complete source code, has been tested.

(译)：1波叠前偏移代码使用筹资方法完成的源代码，已经过测试。

FFD algorithm

FFD算法

FFD edit

FFD编辑

Migration results on the 2D SEG/EAGE salt model show that our method resolves the wider angles and the sub salt weak reflectors more accurately than the unoptimized FFD method.

二维SEG/EAGE盐丘模型实验表明本文方法对陡倾角以及盐下构造的成像精度明显高于未优化的FFD法。

However, the FFD method has obvious error for wider angles.The optimization method can obviously improve the image accuracy of wider angles without additional computational cost.

优化参数的方法能够在保持计算效率的前提下进一步提高陡倾角的成像精度。

However, the conventional FFD methods can not solve the existing problems in current system because of either inconvenient control tools or large time and space costs.

但是，已有的这类方法或者控制手段不够灵活，或者时间和空间开销较大，且各类变形方法都有其自身的适用场合，不适于解决现有工作中遇到的问题。

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full function device (FFD)

完整功能设备

The experiment results show that the algorithm inproves the limitation and complexity of the traditonal FFD.

实验表明该算法改善了传统自由变形算法的局限性和复杂性。

For the make-span minimization problem on two machines with periodic maintenance, it was shown that FFD algorithm was an efficient algorithm.

对于周期维护最小化时间表长问题，证明了经典的FFD算法是一个很好的启发式算法，并且得到了该算法的一个上界。

Combination of the FFD method and alternative direction implicit plus interpolation method on 3D impulse responses further proved the validity of our method.

将本文的方法与交替方向加插值的方法结合应用于三维脉冲响应测试更进一步证实了本文方法的有效性。

Signal detection in FFD channels in wavelet domain

小波域的频率扩展信道的信号检测

FFD（Free Form Deformation） is general approach for computer facial animation and express editing while troublesomely solving control point and unconspicuous deformation result.

摘要 自由变形（FFD）是计算机人脸动画和表情编辑的常用方法，但对控制点的反求和变形结果的不直观是该方法的不足。

Fourier finite-difference (FFD) method can handle wave propagations in the complex media with large lateral velocity contrasts and wide propagation angles.

摘要傅里叶有限差分法(FFD)能够处理复杂地质构造中的波传播问题，但对陡倾角成像仍有明显的误差。

Based on the rational approximation of the FFD operator, we extend the two coefficients to be optimized to four coefficients, then we optimize them globally using simulated annealing algorithm.

本文在有理近似的基础上，将FFD算子展开式中的常系数由两个拓展为四个，然后采用模拟退火算法对这四个参数进行全局优化。

With all eight Objects selected, make a Group of them. Name it TrailMother. Apply FFD 4x4x4 to TrailMother. Do your best to make this shape:

查证!如果你现在选择你的形状八全部都,你的钥匙看起来完全相似这吗?如果不,再一次划除而且做它。

Create an FFD box (as a separate object, NOT as a modifier!) around part of the lava, like this, and bind the lava to the FFD with a space-warp bind

沿着岩浆模型的一部分，创建一个FFD变形盒（注意是一个独立的物体，而非模型的修改器！）然后用空间扭曲绑定工具绑定岩浆到FFD。）

The theoretical analyses and the impulse responses demonstrate that our method significantly extends the accurate propagation angle of the FFD method.

理论误差分析和脉冲响应测试均表明该方法能极大地提高FFD算子的精确传播角度。

The commonly used migration methods include split step Fourier (SSF), Fourier finite difference (FFD), frequency space domain finite difference (FXFD), and generalized screen (GS).

目前常用的这类方法有分步傅里叶法 (SSF)、傅里叶有限差分法 (FFD)、频率空间域有限差分法 (FXFD)和广义屏法(GS)。

TOOTH CROWN DEFORMABLE DESIGN BASED ON DIRECT MANIPULATION OF FFD

直接操作FFD的牙齿修复冠变形设计

FFD Cylinder Modifier

自由变形柱体修改器

FFD Box Modifier

自由变形盒修改器

FFD Select Modifier

自由变形选择修改器

free-form deformation(FFD)

自由形变

free-form deformation (FFD)

自由网格变形（FFD）

IS FFD Line of Departure is Friendly Forward Disposition

进攻出发线为友邻部队前方配置

B-spline based free-form deformation (FFD) model with multi-resolution grid was established to resolve the problem of local deformation image registration.

配准算法采用基于B样条的多分辨率网格自由形变(FFD)的图像形变建模，用于解决局部形变的图像配准问题。

Also, as it appears in the picture above, as soon as the lava exits the FFD box, it will pop back to its unmodified position.

（另外，正如它像上图一样，一旦岩浆模型离开FFD变形盒的空间，它将返回未修改时的位置。