Digital Watermarking Using Visual Model Weights in the Layered DCT;
基于层式余弦变换和视觉特征的数字水印隐藏方法
Experimental results show the layered DCT domain has high capacity which means the watermark is robust to several attack like JPEG coding.
提出基于层式余弦变换的隐藏水印方法 ,主要思路是在余弦变换的 DC系数和 AC系数中叠加水印信号频率值 ,这是因为 DC系数与 AC系数空间容量充足 ,故能保证水印的稳健性 。
Cosine Regression Purifying Method to Determine Positions of Least Square Centers in Different Cross Sections;
截面最小二乘圆心位置的余弦回归提取法
The Inequlity for the weighted sum of cosine of interior angles in a convex n polygon.;
凸n边形内角加权余弦和不等式
Implementation of Sine&Cosine Function Based on Look-up Ttable and Taylor Expansion
基于查找表和Taylor展开的正余弦函数的实现
sine-cosine resolver
正弦－余弦解算装置
On Calculation Formula of Sine Function and Cosine Function;
关于正弦函数和余弦函数的计算公式
Research on sine and cosine transform of broad sense Fourier
广义Fourier正弦、余弦变换研究
Sine-cosine ROM
正余弦函数固定存贮器
Malus cosine-squared law
马吕斯余弦平方定律
fast discrete cosine transform
快速离散余弦变换编码
We derive the addition formulas for sine and cosine from the arithmetic of complex numbers.
用复数算术推导了正弦，余弦的加法公式。
Symmetry of Sine and Cosine Function Graphs;
正弦函数图像及余弦函数图像的对称性
New Proving of the Law of Cosines and the Law of Sines in En
E~n中n维余弦定理和正弦定理的新证明
Perturbation Theorems for Exponentially Bounded C-Cosine Operator Functions and Intergrated Cosine Functions
指数有界C余弦算子函数与积分余弦函数的扰动
The cos() function returns the cosine of a number.
函数的作用是：返回一个数值的余弦值。
Quasi-Cooley-Tukey Type Algorithm for Discrete Cosine Transform
离散余弦变换的准库利-图基型算法
is the cosine of the angle you want and must be from -1 to 1
角度的余弦值，必须介于-1和1之间。
The bar directions are conveniently specified by direction cosines.
杆的方向通常用方向余弦来表示。
This requires two sine-cosine resolvers.
这就需要两个正余弦分解器。
Angular increment sine-cosine arithmetic unit
角增量正余弦函数运算器
Blind watermarking algorithm based on DCT
基于离散余弦变换的盲水印算法研究
The Design of Sub-band Filter Banks Based on Cosine-Modulation;
基于余弦调制的子带滤波器组的设计