1) second order derivative of gravity potential
重力位的二阶导数
2) First and second derivative of geopotential
重力位的一、二阶导数
3) gravity potential second derivative
重力位二阶导数
4) one-order gravitational derivative
重力-阶导数
5) second derivative-based
基于二阶导数的
1.
The relationship between divergence-based and second derivative-based algorithm for image denoising is described and then a new second derivative-based algorithm is put forward.
本文阐述了基于散度的和基于二阶导数的图像去噪算法之间的关系,提出了新的基于二阶导数框架的图像去噪算法,给出了切向扩散系数以及法向扩散系数。
6) second derivative
二阶导数
1.
A class of stiffly stable k-step second derivative methods of order k+2;
一类k步k+2阶的二阶导数方法
2.
The infrared diffuse reflectance spectra of PP pellets and powder were directly determined, and then pretreated through multiple scattering calibration ( MSC) , first derivatives ( number of spectrum to absorption of diffused reflection spectrum), second derivatives (number of spectrum to absorption of diffused reflectio.
采用一阶导数、二阶导数、多元闪射校正(MSC)等方法进行光谱预处理,并用局部权重回归(LWR)和偏最小二乘法(PLS)建立平均相对分子质量(和)的校正模型。
3.
The second derivative item is introduced to control diffusion along coherence orientation in coherence enhancing diffusion algorithm (CED).
为了对原始光学相干层析图像进行预处理以有效地去除图像中的噪声及散斑、增强图中的层状结构,并更好地保护图像中的层状结构,进而更准确地定量测量图像中有重要意义的层状结构的光程信息,提出在相干增强各向异性扩散(CED)算法中引入二阶导数项以控制沿相干方向的扩散强度,并将引入二阶导数项的相干增强各向异性扩散算法应用于不同样品的光学相干层析图像。
补充资料：重力位
见地球重力场。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条