采用傅立叶变换红外光谱、图像扫描和显微分析等手段,研究了静电复印废纸溶剂法脱墨的机理。
The mechanism of de-inking of photocopy waste paper with solvent treatment was investigated by Fourier transforming infrared spectrum (FT-IR), image-scanning and microscope analysis.
APEX是一种基于快速傅立叶变换的直接盲解卷积算法,能够快速复原复杂纹理图像。
The APEX method is an FFT-based direct blind deconvolution technique that can recover complex texture imagery quickly.
通过采取快速傅立叶变换以及优化滤波减弱了图像噪声对相关波峰的影响,能快速、准确、实时的对相关点进行定位。
By using the fast Fourier transform and optimized filter, the impact of image noise has been reduced, so we can estimate the correlation peak fast and accurate.
由于采集部分K空间数据成像是对连续频率MR信号的截断,导致经过傅立叶变换后的重建图像中出现截断伪影。
Sampling segmented K-space data makes a truncation of MR signal which is with continuous frequencies, leads to the truncation artifact in the reconstruction images after Fourier transform.
像质测量模块划分为三个子模块:初始化配置子模块、获取图像数据子模块、傅立叶变换子模块。
The imaging quality measuring module includes three sub modules: initial configuration sub module, image data acquisition sub module, fourier transform sub module.
综合孔径辐射计利用孔径综合原理在空间频率域中采样,通过傅立叶变换或其他数学变换获取反演亮温图像。
Synthetic aperture radiometer applies the interferometric principle to sample in the spatial frequency domain and retrieves the image by Fourier or other numerical transformation.
论文给出了一种基于傅立叶变换的中间函数法图像重建算法,并针对该算法设计了一种心脏扫描方案。
This paper presents an intermediate function reconstruction algorithm based on Fourier transform, and also designs a scan method used in Cardiac scan.
介绍了一种基于傅立叶变换的配准方法:相位相关法,并把该方法应用于偏振图像配准中。
Fourier transform-based registration technique, the phase correlation method, is introduced. It is applied to register polarization images.
根据HVS函数的特点,对频域中HVS函数进行反傅立叶变换,将空间域中该函数的部分函数值作为特定的模板参数,并与原图像进行卷积来实现边缘检测。
The HVS function, HVS function is inversely Fourier transformed in frequency domain, and the method is realized by calculating some value of the function in spacial domain as convolve nucleus.
卷积反投影(CBP)与直接傅立叶重建(DF)同是图像重建中变换法的典型算法。
Both convolution Backprojection (CBP) method and direct-Fourier (DF) reconstruction method are the representative algorithms of transform methods in image reconstruction.
一旦迭代过程收敛,通过对点扩散函数进行傅立叶变换即可得到待测低分辨率图像的MTF。
Once the process has converged, taking the Fourier Transform of the PSF gives the estination of the low resolution image MTF.
基于边界的傅立叶变换是一种重要的形状描述方法,其只利用了图像的边界信息,而忽略了图像的区域信息。
The edge Fourier transform is an important shape descriptor, but it makes use of only the image edge information ignoring the image region information.
研究了数字图像处理中两种最常用的算子——离散二维傅立叶变换和离散二维卷积,并给出了它们在RCA上的映射策略和映射过程。
Study two of the most important basic operations in digital image processing: 2-D Discrete Fourier Transform and 2-D Discrete Convolution Transform. Map them on RCA.
在粒子图像测速原理的基础上研究了基于快速傅立叶变换的粒子图像测速算法,并编制算法程序进行验证。
A study was performed on the PIV algorithm based on fast Fourier transformation (FFT), and the PIV program was compiled and verified.
在图像灰度分布互相关和快速傅立叶变换的基础上,研究了粒子图像测速的实现。
On the basis of image cross correlation of brightness distribution and Fast Fourier Translation, the implementation of Particle image Velocimetry was studied.
针对数字图像处理的特点,对傅立叶变换用于图像处理的特性进行了分析,给出了傅立叶变换用于图像处理时的物理意义。
The special property analysis of Fourier transform on image processing is first given in this paper, and the physical significance of Fourier transform is also given.
为了提高抗几何攻击性能,同时保证不可见性,提出了一种结合傅立叶-梅林变换和零水印概念的图像水印算法。
In order to improve performance of resistance to the geometrical attack while keep invisible, a zero-watermark algorithm for digital image based on Fourier-Millin transforming is proposed.
然后对人脸图像做奇异值分解和离散傅立叶变换,并分别提取最佳鉴别变换特征,用最近邻方法进行分类。
The optimal discriminant features of face are extracted using singular value decomposition and Fourier transform, and then they are classified by the nearest neighbor method. In...
针对一类单幅图像的复制遮盖篡改,提出一种基于快速傅立叶变换相位和幅度的自相关检测算法对篡改部位进行检测。
To detect the forged parts in a single image with copy-move attack, an autocorrelation detection method based on phase and amplitude spectrum of FFT is proposed.
首先对采集到的手腕部骨图像进行傅立叶变换;
The article will put forward a kind of new denoising method of digital image in frequency domain:start with a series of Fourier Transforms on hand and wrist X-ray image;
首先对采集到的手腕部骨图像进行傅立叶变换;
The article will put forward a kind of new denoising method of digital image in frequency domain:start with a series of Fourier Transforms on hand and wrist X-ray image;
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