Data correlation coefficients were calculated and switch regions were analyzed by using two dimension discrete cosine transform (DCT) in ray-space data compression.
在光线空间的数据压缩中,计算了数据的相关系数,采用二维离散余弦变换(DCT)进行了变换域分析。
A new watermarking detecting algorithm which resists geometric distortion is proposed, based on Fourier-Mellin transform and phase correlation features.
基于傅里叶-梅林变换特性和相位相关性,提出了一种新的抗几何失真数字水印算法。
Physical meaning: the self-correlation function and the energy spectrum density function compose a Fourier transform pair.
物理含义:能量信号的自相关函数与能量谱密度函数构成傅立叶变换对。
Experiments are performed to validate the importance of wavelet transform for the improvement of the correlation quality and the recognition accuracy.
通过实验验证了于波变换在改善相关输出质量和提高相关检测准确性方面的重要作用。
Utilizing a high contrast liquid crystal light valve (LCLV) to perform joint power spectrum nonlinear processing, real time nonlinear joint transform correlation is implemented.
利用高对比度液晶光阀(LCLV)对联合功率谱进行非线性处理,实现了实时非线性联合变换相关。
The fractional Fourier transform contains the spatial information and the spatial-frequency information simultaneously. The fractional correlation can be used to optical pattern recognition too.
分数傅里叶变换同时包含了空间域和空间频率域信息,分数相关也可以用于光学图样识别。
A objects recognition method based on the normalization fringed adjusted joint transform correlation was proposed in this paper.
本文提出了一种基于归一化的条纹调制联合变换相关目标识别方法。
In this paper, Hough transform and phase correlation was combined to solve the problem of image registration.
本文结合霍夫变换和相位相关技术来处理图像配准问题。
Based on expatiate wavelet transform principle, aimed at the construction of fusion operator, a new scheme using the correlation of decomposition coefficients is presented.
文中在阐述小波变换原理的基础上,针对融合算子的构造,给出了一种新的基于小波系数相关性的融合方法。
Orthogonal wavelet transform (OWT) matrix is constructed and the residual correlation property of OWT is analyzed under the stationary and nonstationary models.
构造了正交小波变换矩阵,分析了平稳模型和非平稳模型下正交小波变换的残余相关特性。
The new method of image matching based on feature extraction and transform domain correlation is proposed in this paper.
提出了一种基于图像特征提取和变换域相关的图像匹配方法。
Zero-order diffraction light spot can influence the detection of the correlation peak in joint transform correlator.
联合变换相关器的零级衍射光斑会影响相关峰探测。
We propose a new method for disparity estimation in this paper, in which the hierarchical complex lapped transform phase correlation is used.
文中利用分层复数交叠变换域相位相关方法进行匹配提出了一种新的视差估值方法。
The relation between output correlation spot shape and length width ratio of input correlation image was analyzed quantificationally by using of diffraction theory in the joint transform correlation.
根据联合变换相关理论和光的衍射理论,定量分析了联合变换相关中两相关输入物长宽比与输出相关点形状间的关系。
A technique of using optical wavefront-division multiplexer to realize high efficiency joint transform correlation is proposed in this paper.
提出一种利用光学波分复用器实现实时高效联合变换相关的方案。
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.
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。
In this paper, two methods of realizing optical pattern recognition, spatial matched filter correlation and joint transform correlation (JTC), were discussed first with the emphasis on the JTC.
本文首先论述了实现光学模式识别的两种方案,空间匹配滤波相关识别和联合变换相关识别的原理和技术。
Following the spectral correlation theory and wavelet transform theory, a method named as wavelet spectral correlation method is proposed for BPSK signal detection and chip rate estimation.
在谱相关理论和小波变换理论的基础上,提出了小波谱相关方法实现BPS K信号检测与码元速率的提取。
In this paper, the method of implementing nonlinear joint transform correlation and the principle of adaptive moving object tracking are described, experimental results are also given.
本文给出非线性联合变换相关的实现方法、运动目标跟踪原理和跟踪实验结果。
In this article, we propose a fast correlation algorithm of multiple PN code by fast Walsh Transform (FWT).
本文提出了一种利用快速沃尔什变换(FWT)实现对复合码进行快速相关的算法。
The filter is put on the power spectrum before applying the inverse Fourier transform to yield the correlation output. This technique can be used in pattern recognition of grey level input image.
将这种滤波器放置在傅里叶反变换产生相关输出之前的联合功率谱面上,该技术可以应用在具有不同灰度图像的模式识别中。
The results show that the spectrum transform can reflect their correlation with the element quantitative.
结果表明,经变换后的光谱能更好地反映出与成分含量之间的相关关系。
The effects of wavelet transform are studied in detail. The amount of output correlation channels is estimated, and methods to improve parallelism of the system are provided.
文中深入分析了引入子波变换对体全息相关器所产生的作用,给出了系统一次并行输出相关通道数目的估算方法及提高系统并行性能的主要途径。
Utilizing a liquid crystal light valve (LCLV), which is produced in China and is made to work in high contrast state, to realize nonlinear joint transform correlation is proposed in this paper.
提出了利用国产液晶光阀(LCLV),使其工作于高对比度状态,实现实时非线性联合变换相关。
In this paper, in order to achieve better correlation result, the nonlinear processing of joint transform power spectrum (JTPS) is put forward.
为了得到更好的相关结果,本文提出对联合功率谱进行非线性处理的方法。
KLT is used to remove the correlation of spectral redundancy as one-dimensional (1d) linear transform, and SFCVQ coding is applied to enhance compression ratio.
KL变换作为一维线性变换被用于消除一维(1d)谱冗余,且SFCVQ编码被应用于提高压缩比。
Fourier transform-based registration technique, the phase correlation method, is introduced. It is applied to register polarization images.
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。
Then the classified K_L transform is used to reduce the spectral correlation of quantization error image. Finally, the prediction tree is adopted to reduc…
再通过分类K L变换去除量化误差图像的谱间相关性,对K L变换后的特征图像采用预测树的方法进一步去除谱间结构相关性和空间相关性。
Fast Fourier transform has been applied for computing the cross-correlation of seismic surface waves for records at two stations.
应用了快速傅氏变换计算两个台记录的地震面波的互相关函数。
Fast Fourier transform has been applied for computing the cross-correlation of seismic surface waves for records at two stations.
应用了快速傅氏变换计算两个台记录的地震面波的互相关函数。
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