提出一种利用变形分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical image encryption method using anamorphic fractional Fourier transform and double random phase encoding is proposed.
提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical image encryption method using dissymmetrical fractional Fourier transform and double random phase encoding was presented.
提出变形分数傅里叶变换双随机相位编码技术。
The paper presents encrpytion techniques of double random phase based on anamorphic fractional Fourier transform.
提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
A new optical encryption technique based on double random phase computer-generated hologram of asymmetry fractional Fourier transform is presented.
双光纤莫尔干涉条纹与傅里叶变换法相结合可以测量物体的三维轮廓。
The objects 3-D profile are reconstructed by using of the Fourier transform.
应用傅里叶变换红外光谱（FTIR）法测定了云南省5个不同地区58个野生双色牛肝菌子实体样品的红外光谱。
In this paper, Fourier transform infrared(FTIR) spectroscopy combined with principal component analysis was used to identify 58 samples of boletus bicolor from five different areas.
双光纤莫尔干涉条纹与傅里叶变换法相结合可以测量物体的三维轮廓。
The combination of double fiber optic Moire interference fringes and Fourier transform can measure an object 3-d profile.
分数傅里叶变换具有空域和频域双域表达能力，可以对原始图像和水印信号分别进行不同阶次的分数傅里叶变换以增强水印安全性。
The FRFT has signal representation property both in space and frequency domain. The original image and the watermark is transformed with different orders to improve watermarking security.
分数傅里叶变换具有空域和频域双域表达能力，可以对原始图像和水印信号分别进行不同阶次的分数傅里叶变换以增强水印安全性。
The FRFT has signal representation property both in space and frequency domain. The original image and the watermark is transformed with different orders to improve watermarking security.
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