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双线性变换 [shuāng xiàn xìng biàn huàn]
bilinear transformation
- 对分割出的图像,采用双线性变换函数来实现目标的校正。
For the bar image segmented, bilinear transformation function is used to restore the bar image. - 摘要采用基于逐次正则变换的变分方法，利用单模压缩态变换处理包含声子产生湮灭算符的双线性项，研究了抛物量子点中束缚极化子的性质。
The ground-state energy and the average number of virtual phonons around the electron of a hydrogenic impurity confined in a parabolic quantum dot are calculated using the squeezed-state variational approach, which is based on two successive canonical transformations and uses a displaced-oscillator type unitary transformation to deal with the bilinear terms, which are usually neglected. - 首先计算出人脸的平面旋转角度，然后利用双线性插值的思想，推导出一种便于编程、速度快的插值方法进行旋转变换，将其矫正为正面端正人脸。
The algorithm first works out the plane rotation angle of a single human lace and then uses interpolation to make changing rotation to draw a normal human face.
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