Description: This function computes Euclidean distance transform for 3D binary image with non-trivial aspect ratio (i.e. anisotropic pixels). The algorithm uses fast optimized line-scans and is actually faster than MATLAB s BWDIST implementation of search on optimized kd-tree for many cases. It also uses cell-array representation for internal data, and thus is less demanding to physical memory. Platform: |
Size: 49720 |
Author:fangfei |
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Description: A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database. Platform: |
Size: 422308 |
Author:ruan |
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Description: 计算欧几里德距离C语言源代码,次源码经测试可有效运行,源码简单易懂-Calculation of Euclidean distance C-language source code, sub-source has been tested and can be effectively run, easy-to-read source Platform: |
Size: 1024 |
Author:angel |
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Description: This function computes Euclidean distance transform for 3D binary image with non-trivial aspect ratio (i.e. anisotropic pixels). The algorithm uses fast optimized line-scans and is actually faster than MATLAB s BWDIST implementation of search on optimized kd-tree for many cases. It also uses cell-array representation for internal data, and thus is less demanding to physical memory. Platform: |
Size: 49152 |
Author:fangfei |
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Description: 生成一个哑铃，进行欧几里德距离变换
里面涉及vtk5.0
并用到Saito’s 算法-Generate a dumbbell, the Euclidean distance transform which involves vtk5.0 and Saito s algorithm used Platform: |
Size: 3971072 |
Author:王明 |
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Description: 提出一种基于多纹理特征融合的新颖虹膜识别方法。该方法对虹膜图像做Gabor 小波变换
提取不同分辨力不同方向下的纹理特征作为虹膜的全局特征，在滤波后的子窗口图像上运用灰度
级共现矩阵(COM)提取虹膜的局部特征。通过加权欧几里德距离和最小距离分别对全局特征和局部
特征进行分类识别。-A texture feature fusion based on multi-novel iris recognition method. The method of iris image make Gabor wavelet transform extracted under different resolution in different directions as the texture feature of the overall characteristics of the iris, in the post-filter sub-window image using gray level co-occurrence matrix (COM) of the local feature extraction of the iris. Through the weighted Euclidean distance and minimum distance, respectively, on the global features and local features for classification. Platform: |
Size: 770048 |
Author:闫慧 |
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Description: 1)具体功能为:鼠标绘制折线,给出折线的缓冲区宽度,提取出折线的平行线.
2)本程序是利用地图代数中距离变换的方法(栅格方法),提取折线的平行线.和笔者前一阵子上传的折线的平行线算法(矢量方法)可做对比
3)注:矢量方法中没有考虑垂直的特殊情况,增加个判断条件便可消除.
-1) the specific features as follows: the mouse line drawing, broken line give the width of the buffer, to extract the broken line parallel line .2) This procedure is the use of map algebra in the distance transform method (grid method), Extraction of broken parallel lines. and the author of the line long ago From the parallel line algorithm (vector method) can be compared 3) Note: The vector method does not consider the special circumstances of the vertical, increasing the conditions of a judge could be removed. Platform: |
Size: 47104 |
Author:许允波 |
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Description: A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database. -A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database. Platform: |
Size: 421888 |
Author:ruan |
Hits:
Description: A novel texture-based Automatic Fingerprint Authentication System (AFAS) is proposed. A fingerprint image is preprocessed to enhance the image by Short Time Fourier Transform (STFT) analysis. Then, three sets of invariant moment features, as a kind of texture features, are extracted from three different sizes of Region of Interest (ROI) areas based on the reference point from the enhanced fingerprint image. Each set of invariant moments contain seven invariant moments. Fingerprint verification is realized by Euclidean distance between the two corresponding features of the test fingerprint image and template fingerprint image in the database Platform: |
Size: 276480 |
Author:joyce |
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Description: 小波变换在信号处理、图像处理、模式识别、计算机视觉等
方面广泛应用。本文提出了一种基于Haar小波的时问序列相似
模式匹配模型．它首先对时间序列数据进行Haar小波变换．以
降低数据的维度。首先将所要查询的时间序列进行降维，也就是
对时间序列数据进行小波变换，对序列进行标准化131，得到降维
之后的小波序列．这样可以得到系数子集的良好近似采用尺度
序列表示原始序列．并将其看成多维空间中的一个点，通过计算
两序列差的平方和的平方根作为这两个时间序列的距离函效
(即欧氏距离)。用小波变换保持了局部性质。而欧氏距离就是要
判断相似性的距离函数．所以当在作完变换之后。通过低频分量
来压缩数据，成功的计算出实际距离的下界。如果计算的结果小
于一个由用户所定义的门槛值．则认为这两个时问序列是相似
的。
在-Of wavelet transform in signal processing, image processing, pattern recognition, computer vision, etc.
Aspects of wider application. In this paper, Haar wavelet-based time series similarity
Pattern matching model. It is first time-series data, Haar wavelet transform. To
To reduce the data dimension. Will first want to check the time series dimension reduction, that is,
Pairs of time series data using wavelet transform, standardize the sequence 131, to be reduced-
After the wavelet sequence. This can be a good approximation coefficients of a subset of the use of scale
Sequence indicated that the original sequence. And to treat it as a multi-dimensional space a point, by calculating the
Two sequences and the square root of the square of the difference as the distance between these two time series letter effect
(Ie, Euclidean distance). Maintained with the local nature of the wavelet transform. The Euclidean distance is to
To determine simila Platform: |
Size: 323584 |
Author:lx |
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Description: 基于奇异值分解的人脸识别方法
梁毅雄 龚卫国 潘英俊 李伟红 刘嘉敏 张红梅
提出了一种将傅里叶变换和奇异值分解相结合的人脸自动识别方法.首先对人脸图像进行傅里叶变换,得到其具有位移不变特性的振幅谱表征.其次,从所有训练图像样本的振幅谱表征中给定标准脸并对其进行奇异值分解,求出标准特征矩阵,再将人脸的振幅谱表征投影到标准特征矩阵后得到的投影系数作为该人脸的模式特征.然后,对经典的最近邻分类器算法进行了改进,并采用模式特征之间的欧式距离作为相似性度量,从而完成对未知人脸的识别.采用ORL (Olivetti Research Laboratory)人脸库对本文提出的人脸识别方法进行验证,获得了100.00 的识别率.实验结果表明,本方法优于现有的基于奇异值分解的人脸识别方法,且对表情、姿态变换等具有一定的鲁棒性.
-Face recognition based on singular value decomposition method
Deliberate simultaneously Gong Weiguo Li Wei Hung Stephen Lau, Hong-Mei Zhang Ying-Jun Pan
Paper, a Fourier transform and singular value decomposition of the combination of automatic face recognition. First of all, the face image by Fourier transformation, it has the same characteristics of the displacement amplitude spectra. Secondly, all training The amplitude spectrum of the sample images given in standard face representation and its singular value decomposition, find the standard characteristic matrix, then the amplitude of spectral characterization of human faces projected onto the standard characteristic matrix of projection coefficients obtained as the face of the model features . Then, the classical nearest neighbor classifier is improved, and the use of Euclidean distance between pattern features as the similarity measure, thus completing the identification of unknown human faces. using ORL (Olivetti Research La Platform: |
Size: 58368 |
Author:houhj |
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Description: Euclidean Distance Transform has been widely studied in computational geometry, image processing, computer graphics and pattern recognition. Euclidean distance has been computed through different algorithms like parallel, linear time algorithms etc. On the basis of efficiency, accuracy and numerical computations, existing and proposed techniques has been compared. This study proposed a new technique of finding Euclidian distance using sequential algorithm. An experimental evaluation has shown that proposed technique has reduced the drawbacks of existing techniques. And the use of sequential algorithm scans has reduced the computational cost. Platform: |
Size: 101376 |
Author:yasora |
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Description: 提出丁一种在距离空间内采用Euclidean距离计算的手势识别算法。手势图像经过连缘检羽后，时边缘图像卖施Euclidean
距离变换(ElYr)。在距离变换空间^计算距离映射图与样本之间的Euclidean距离。罩后，时基于单目税觉的30十手
指语牟母手势进行识刺．最好识剐率达93．33％。-Abstract：A Hand C,estme re曲印id叩aI孚嘶tll皿is presented， which based ofl Euclidean distance， computed in the spa∞of Euclidean．
After the edge examing，Euclidean Distance Transform(E册)is implemented，eldeulates the i1『-inimum Euclidean distance between
the images．Finally，the recognition of 30 letter gestures is performed by computing distance．11le best reeo管fifion rate of
93．33％is achieved． Platform: |
Size: 244736 |
Author:Decheng Yu |
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Description: 利用欧氏距离计算三维模型的中轴，希望对大家有用！-Medial Axis (MA), also known as Centres of Maximal Disks, is a useful representation of a shape for image description and analysis.
MA can be computed on a distance transform, where each point is labelled to its distance to the background. Recent algorithms allow one to
compute Squared Euclidean Distance Transform (SEDT) in linear time in any dimension Platform: |
Size: 487424 |
Author:Niu Wenjie |
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Description: SIFT keypoints of objects are first extracted from a set of reference images[4] and stored in a database. An object is recognized in a new image by individually comparing each feature from the new image to this database and finding candidate matching features based on Euclidean distance of their feature vectors. From the full set of matches, subsets of keypoints that agree on the object and its location, scale, and orientation in the new image are identified to filter out good matches. The determination of consistent clusters is performed rapidly by using an efficient hash table implementation of the generalized Hough transform. Platform: |
Size: 700416 |
Author:ahmed |
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Description: 采用小波变换，利用小波系数，作为图像纹理特征的检索。并采用欧式距离，将最相似的图像，按序排列下来-The wavelet transform using the wavelet coefficients as the retrieval of image texture features. And Euclidean distance, the most similar images in descending order down Platform: |
Size: 140288 |
Author:曾小浩 |
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Description: 基于K-L变换的人脸识别技术主要思想是：提取输入人脸图像矩阵的特征向量，并与图像数据库中样本特征的向量求欧氏距离，距离小于阈值时便认为识别成功。本程序即为利用K-L原理实现人脸检测的实例。-The main idea of the face recognition technology based on KL transform is: extract the matrix of the input face image feature vectors and Euclidean distance, the distance is less than the threshold sample feature vector image database and thinks that the recognition success. The program is the use of the KL the principle face detection instance. Platform: |
Size: 4096 |
Author:guocheng |
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Search - Euclidean distance transform