仿射函数，即最高次数为1的多项式函数。常数项为零的仿射函数称为线性函数。
这类系统的状态空间矩阵是一些时变参数的仿射函数，而这些时变参数是可以实时测量的。
The state space matrices of the systems are assumed to be affine functions of some time varying parameters, which can be measured in real time during the system operation.
基于仿射密码的加密原理，构造了一种差分跳频的频转移函数。
Based on the encryption principle of affine cipher, a frequency transition function of DFH is designed.
提出了一种用于图像分割的分段可变形模型，并在模型的能量函数中引入了仿射不变量信息。
A segmental deformable model for image segmentation was presented and affine invariants were introduced into the model's energy function.
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