旋转不变性

INDO基组中包括f轨道时单中心双电子积分的旋转不变性

On the Rotational Invariance of the INDO Method Including f Orbitals into the Basis Set

该结构能够巧妙赋予V-BLASTOFDM系统以旋转不变性性质。

One novel labeled delay diversity structure was proposed for the V-BLAST OFDM system , which could elegantly introduce the rotational invariance property into the V-BLAST OFDM system .

通过Fourier算子的处理，在实现旋转不变性的同时进行了降维。

Processed by Fourier operator , feature vectors become rotation-invariant , whose dimensions are reduced at the same time .

一种基于Radon变换和双谱分析的纹理旋转不变性分析方法

Rotation Invariant Analysis Approach to Texture Image Classification Based on Radon Transform and Bispectrum Analysis

理论上推导出旋转不变性小波矩，重点研究旋转不变性小波矩的计算方法，提出一种基于FFT的快速小波矩算法，使得小波矩的快速计算成为可能。

A wavelet moment invariants is deduced and a new algorithm of wavelet moment based on FFT is proposed .

R变换具有对噪声、空洞不敏感，鲁棒性好的特点，并具有平移、缩放不变的性质，但不具有旋转不变性。

R transform is insensitive to the noise and cavity and it is robustness . R transform is invariant under translation and scaling but variant under rotation .

ZERNIKE矩的旋转不变性及对旋转角度的估计

Rotation invariance of Zernike moment and estimation of rotation angles

用Zernike矩来确定字符的旋转不变性特征

Getting the Rotation Invariant Features by Using Zernike Moments

第二步，利用Zernike矩来确定数字图像的旋转不变性特征。

Step two , get the image 's rotation invariant features using Zernike moments .

Hong阐明了图像矩阵奇异值具有很多优良特性，也得出了图像矩阵奇异值具有旋转不变性这一结论。

Hong ' article gives many excellent characteristics of the singular values extracted from an image matrix , and reaches the conclusion that the singular values are invariant to rotation .

一类具有旋转不变性的光学特征识别系统&原理与CGH滤波

An OPR System with Rotation-Invariance Theory and CGH Filtering

分析了Zernike矩的旋转不变性特征，并将其应用于旋转目标的识别。

Rotation invariance features of Zernike moments is analyzed and used to identify the rotation targets .

Zernike矩具有正交性和旋转不变性，可以作为图像的不变矩特征。

Zernike moment is invariable when image rotates and it is orthogonal , so it is suitable as invariant feature of the image .

该算法利用Zernike多项式的正交性与完备性以及复数矩幅度的旋转不变性计算出边缘的亚像素位置。

Zernike polynomials were selected in this algorithm based on its orthogonality and completeness , and the rotation invariance of complex moment amplitude .

改进的Zernike矩不仅具有旋转不变性，而且还具有改进前不具有的比例不变性。

The improved Zernike moment has not only rotation invariance , but also scale invariance that the original Zernike moment does not have .

Zernike矩因具有正交性和旋转不变性而广泛应用于模式识别、图像分析等领域。

Zernike moments are widely used in the fields of pattern recognition and image analysis due to their good properties such as orthogonality and rotation invariance .

利用上述旋转不变性，进一步为下行V-BLASTOFDM系统提出了一种多输入多输出（MIMO）频率选择性无线信道的盲估计方法。

By exploiting the above rotational invariance property , one blind estimation scheme of multiple-input multiple-output ( MIMO ) frequency-selective fading wireless channels was derived for the downlink V-BLAST OFDM system .

整个方法包括具有旋转不变性的纹理特征抽取、纹理特征的光滑、基于三层次神经元网络的初始分割以及利用多值Boltzmann机的进一步分割。

The whole procedure includes extraction of rotation-invariant features , smoothing of these features , initial segmentation based on three-layered neural networks , and extensive segmentation using multi-valued Boltzmann machines .

该方法主要特点是利用SIFT算法进行图像特征提取与匹配，在机器人运动前后的图像序列中寻找匹配点，使图像特征点的提取具有尺度和旋转不变性。

After the moving of the robot , we searched for a matching point between the image sequences , and the feature extracted had the properties of scale-invariants and rotation-invariants .

利用SIFT特征描述的区域性和尺度与旋转不变性，对特征点的9×9邻域计算DCT系数，并在中频部分选取一部分系数实施水印嵌入。

With the invariant performance of SIFT descriptors , the algorithm calculates DCT coefficients in 9 × 9 neighborhood of key-points and chooses a part of coefficients in middle frequency domain to proceed watermark embedding .

在文物图像库上进行的实验表明，SIFT特征对于检索图像不仅具有旋转不变性和尺度不变性，对于文物对象边界较复杂的图像，也表现出良好的检索效果。

The experimental result on cultural relic image database shows that SIFT feature is not only invariant to rotation and scale variation but also has good retrieval performance on cultural relic images with complex edge .

相比于标准的SIFT描述子，在特征描述能力方面，SVD-SIFT和GOS基本上保存了原始SIFT描述子所具有的尺度不变性、旋转不变性等良好特性。

Compared to the standard SIFT descriptor , SVD-SIFT and GOS is basically preserved the good characteristics of the original SIFT descriptor with scale invariance . rotation invariance .

与使用图像全局Zernike矩相比，使用局部矩使得水印具有更好的旋转不变性，同时水印对于缩放、JPEG压缩和噪声等攻击也具有较好的检测性能。

The local Zernike moments makes the watermark more robust to rotation attacks than the global moments . The watermark is also robust to scaling as well as regular attacks such as JPEG compression and added noises .

由于Z值图由反映色彩的聚类区域组成，并且使用矩方法来表达特征，因此该检索方法是鲁棒的，具有2维平移、尺度、旋转不变性，同时可以避免逐点匹配产生的时间耗费。

As Z image is made up of many color clustering regions and method of moments is used for feature representation , our approach is robust , and of 2D invariance in translation , scale and rotation , while time consumption pixel by pixel can be avoided .

通过计算每个非下采样Contourlet变换尺度下的所有子带的平均能量和平均标准偏差，得到具有旋转不变性的纹理特征。

To achieve rotation invariant features , we use the mean of energies and standard deviations of all subbands at each NSCT scale .

在本论文中，使用一种新的特征提取方法&基于2-Dlog-Gabor子带图像分割方法，应用这种方法能够使得虹膜特征码的维数大大减少，并且使图像具有旋转不变性。

In this paper , using a new feature extraction method-based on 2-D Log-Gabor sub-band image segmentation method , applied this method to make the dimension of the iris signature greatly reduced , and the image with rotation invariance .

实验结果表明，基于RPFT的景象匹配算法不仅具有旋转不变性，而且有着更高的匹配准确率和更强的鲁棒性。

The results of experiments show that the algorithm of scene matching based on RPFT is not only rotation invariant , but also more robustness and has a higher matching accuracy .

通过该算法得到的旋转不变性特征描述符VD2能够提供同类模型的共性特征，也能提供差异化的类间特征。

From this algorithm , a rotation-invariant descriptor called VD2 , which can simultaneously provide common features among models in the same class and differential features among models in different classes , is generated .

提出了一种新的码字处理方法，使得由Freeman链码得到的最小和统计方向码具有起始点不变性、旋转不变性，基于最小和统计方向码的方向熵具有尺度不变性。

In this paper , a new method of processing codes was proposed , which enabled the Minimize Sum Statistical Direction Code ( MSSDC ) based on Freeman chain code to be invariant to the origin and rotating , and also enabled the direction entropy to be invariant to scaling .

将Truesdell率引入到本构关系中，既考虑了刚体旋转不变性又考虑了变形的影响，使欧拉大变形固结理论具有广泛的客观性。

In this paper , Truesdell derivative is applied into large strain consolidation constitutive relation , which take consideration of the influence of rigidity rotation and deformation , and which makes the theory objective in a wide range .