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- The watermark can be retrieved by using either optical or digital Fourier transform on halftone images containing the watermarked information. 水印的提取过程只需对含有水印信息的半色调图像进行光学或数字的傅里叶变换即可完成。
- A Fourier transform does this, but with waves. 傅立叶变化就是这样，但是它是按照波的情况。
- The Discrete Fourier Transform (DFT) plays an important role in digital signal processing and many other fields. 离散傅里叶变换 (DFT)在数字信号处理等许多领域中起着重要作用 .
- Correction of Nonparaxial and Misfocus Aberrations in Digital Lensless Fourier Transform Holography[J]. 引用该论文 Jiang HongZhen;Zhao Jianlin;Di Jianglei;Yan Xiaobo;Sun Weiwei.
- Using convolution and fast Fourier transform(FFT) algorithm to calculate diffraction integral,the CGH is reconstructed by digital focus method. 通过卷积和快速傅立叶变换 (FFT)的方法计算衍射积分 ,以数字聚焦的方法进行再现。
- Using discrete Fourier transform for interpolation of 3-D MT data. 用傅氏变换实现三维MT数据的插值
- The discrete fourier transform (DFT) exists the errors. 摘要离散傅立叶变换(DFT)存在误差。
- Windowed Fourier transform for 3 - D shape measurement[J]. 引用该论文 付艳华;陈文静;苏显渝.
- The characteristic analysis of hololens Fourier transform[J]. 引用该论文 王红霞;盛兆玄;赵玮;李育新.
- Analysis on an Improved Fourier Transform Profilometry[J]. 引用该论文 毛先富;陈文静;苏显渝.
- Introduction the Fourier series, Convolution,Laplace transform, Z-transform, Discrete time and fast Fourier transform, Adaptive filter,digital filter. 介绍傅立叶,拉式,Z转换之数学运算,同时应用于离散与计算快速傅立叶转换,而此数学运算使用时数位滤波器之应用
- In this system, DSP drives CCD to collect signals, converts analog signals to digital signals, completes fast Fourier transform, and controls LCM to display spectrogram. 整个系统通过DSP驱动CCD传感器采集信号,并由DSP完成模数转换以及各种变换运算,最后由DSP控制液晶显示模块输出光谱曲线。
- In this paper, By use of the holographic theory and Fourier transform spectrum analysis, The impulse response and resolving power of Fresnel digital holography is presented. 本文依据全息理论和付里叶频谱分析，对菲涅尔数字全息系统的脉冲响应和分辩本领进行了理论分析。
- Some interpolated Discrete Fourier Transform (DFT) methods are analyzed. 本文首先讨论并分析了各种插值DFT(离散傅里叶变换)算法,然后提出了一种实正弦信号的快速插值频率估计方法。
- Fractional Fourier transform of apertured paraboloid refracting system[J]. 引用该论文 陈建农;闫金良;王德法;于永江.
- We use Fast Fourier Transform arithmetic to calculate two seriate images. 在相邻两帧图像上，找出相关度最大的两个小区域，用它们之间的距离除以两次拍摄之间的时间间隔，就得到这个小区域在间隔时间内的平均速度，进而得到整个流场的速度分布。
- Some applications of the fast Fourier transform to the polynomial calculation. 多项式计算当中快速傅立叶变换的应用。
- Fractional Fourier Transforms for Cosh-Gaussian Beams[J]. 引用该论文 陈天禄;吴平.
- Utilizing the measured data of the phases and the amplitudes, several objects (Arabic numerals) have been reconstructed by digital inverse Fourier transformation and the results are agreeable with the input objects. 利用测到的位相和振幅数据,作为物函数的几个阿拉伯数字被逆数字傅里叶变换反演,其结果与输入物函数一致。
- In this paper, a pulsar de-dispersion algorithm based on the Short Time Fourier Transform (STFT) is presented. 摘要叙述了一种基于短时傅立叶变换的脉冲星消色散算法。
