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Description: 基于matlab的Hilbert-Huang变换完版程序-based on Matlab Hilbert-Huang Transform End version of procedures
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Size: 374784 |
Author: 陈力 |
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Description: A Corner Detector based on Global and Local Curvature Properties，using GUI.-A Corner Detector based on Global and Local Curvature Properties, using GUI.
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Size: 104448 |
Author: 袁晔 |
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Description: ％ COMPDIR Computes a search direction in a subspace defined by Z.
％ Helper function for NLCONST.
％ Returns Newton direction if possible.
％ Returns random direction if gradient is small.
％ Otherwise, returns steepest descent direction.
％ If the steepest descent direction is small it computes a negative
％ curvature direction based on the most negative eigenvalue.
％ For singular matrices, returns steepest descent even if small.- COMPDIR Computes a search direction in a subspace defined by Z. Helper function for NLCONST. Returns Newton direction if possible. Returns random direction if gradient is small. Otherwise, returns steepest descent direction. If the steepest descent direction is small it computes a negative curvature direction based on the most negative eigenvalue. For singular matrices, returns steepest descent even if small.
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Size: 1024 |
Author: 张风 |
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Description: 数值计算三次样条实验设 表示 在 上之最小曲率半径。按规范设计规范 ，其中 为实地所测最小曲率半径-Cubic Spline numerical experiments based on that of the smallest radius of curvature. By standardizing design specifications, including for the smallest field of the measured radius of curvature
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Size: 223232 |
Author: ren |
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Description: 我自己用vc写的一个图像分割的程序，先用分水岭算法得到一个初始的分割结果，然后根据每个小块的颜色和形状进行合并，最后得到一个统计最优的分割结果。相关算法可以参阅下面的文章
Xiao Chen He, Nelson H. C. Yung, K.P. Chow, Francis Y.L. Chin, Ronald H. Y. Chung, K. Y. K. Wong, Kenneth S.H. Tsang, “Watershed Segmentation with Boundary Curvature Ratio Based Merging Criterion”, submitted to The Ninth IASTED International Conference on Signal and Image Processing, Hawaii, USA, August, 2007.-err
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Size: 88064 |
Author: sam he |
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Description: 我用matlab写的一个corner detector, 效果比现在流行的harris，susan，CSS等效果要好。
Algorithm is derived from:
X.C. He and N.H.C. Yung, Curvature Scale Space Corner Detector with Adaptive Threshold and Dynamic Region of Support , Proceedings of the 17th International Conference on Pattern Recognition, 2:791-794, August 2004.
Improved algorithm has been included in A Corner Detector based on Global and Local Curvature Properties and submitted to Optical Engineering.
-err
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Size: 60416 |
Author: sam he |
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Description: 基于概率积分模型的下沉、倾斜、曲率计算，含实测数据-Integral model based on the probability of subsidence, tilt, curvature terms, with the measured data
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Size: 94208 |
Author: zzj |
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Description: Multiscale Curvature-Based Shape
Representation Using B-Spline Wavelets
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Size: 216064 |
Author: Nick |
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Description: Robust Corner Detection Based on Multi-scale Curvature Product in B-spline Scale Space
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Size: 3814400 |
Author: Nick |
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Description: matlab代码使用水平集的方法并且参考使用Osher and Fedkiw s 教材，结合曲率的基础力量，矢量场的力量和方向的力量可以正常使用-This set of Matlab files implements Level Set Methods and follows Osher and Fedkiw s book. A combination of curvature-based forces, vector field-based forces and forces in the normal direction can be used.
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Size: 151552 |
Author: 书强李 |
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Description: 基于VC++环境的快速的角点检测算法，比灰度面积法和边缘曲率法，有着更好的效果-Based on VC++ environment, a fast corner detection algorithm, than the gray area of law and the edge curvature method, have better results
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Size: 2283520 |
Author: liqi |
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Description: Triangle Collapse Algorithm Based on Discrete Curvature Estimation-A new mesh simplification algorithm based on surface curvature estimation is proposed and it is on the basis of triangle collapse.According to the discrete curvature on triangle meshes, more important features can be preserved in regions of high curvature after simplification. Amethod to get the new vertex after the collapse of a triangle based on discrete curvature and spherical surface estimation is also given. Experimentsillustrate the efficiency of the algorithm.
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Size: 343040 |
Author: strida |
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Description: 基于boundar边界提取轮廓，采用曲率算法确定可能为指尖或者指根点的区域，采用该程序确定指尖指根区域。-Contour extraction based on boundar border, using the curvature method to determine the root may refer to point fingers or regions that use the procedure to determine the root area fingertips.
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Size: 1024 |
Author: liyan |
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Description: 人眼定位MATLAB源程序 人眼定位MATLAB源程序 -MATLAB source localization of human eyes eyes Eyes Location Location MATLAB MATLAB source code source code source MATLAB Eyes Location
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Size: 22528 |
Author: yjl |
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Description: Function to calculate the principal curvatures on a triangular mesh. Approximations of curvature are based on local (N=1) neighborhood elements and vertices.
Note: Directions of curvatures aren t calculated appropriately. Will post an updated version once this is implemented.
Note that calculations at vertices with few adjacent triangles, and hence few adjacent vertices, are expanded to a greater neighborhood.
Reference:
1) Chen and Schmitt (1992) Intrinsic surface properties from surface triangulation
2) Dong et al. (2005) Curvature estimation on triangular mesh, JZUS
This code makes use of routines: buildInverseTriangualtion.m & removeDO.m
initially written by: David Gringas. He is gratefully acknowledged
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Size: 22528 |
Author: tao lu |
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Description: 摘要文中算法首先在曲线尺度空间中通过高斯平滑以消除噪声；然后再基于自适应弯曲度计算和角点筛选准
则确定角点. 该算法不需要预先输入参数，具有较好的抗干扰性，实现简单有效.
关键词高斯平滑；尺度空间；自适应；角点检测-Abstract In image processing，corner point means the dominant point of maximum curvature aiong the
bounding edge of pianar object. A method of detecting and iocaiizing corners of pianar curvature based on Gaussian
scaie space is presented. An adaptive curvature estimate method measures the significance of each point on
the boundary preprocessed by Gaussian smoothing；then a criterion is estabiished to choose the desired corner
points. The method reguires no input parameter，and experiments were performed to show that the scaie space
corner detector based on Gaussian smoothing is reiiabie for objects with muitipie-size features and noisy boundaries.
Key words Gaussian smoothing；scaie space；adaptive；corner detection
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Size: 195584 |
Author: 李齐贤 |
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Description: Iteractive Curvature Based Interpolation
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Size: 45056 |
Author: xiechao |
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Description: SIFT 由特征提取，特征描述符描述和特征匹配 3 部分构成，该算子特征提取数目庞大，建立特征描述符运算
量高，导致算法效率低。提出了一种 SEC( SIFT-Edge-Corner) 算法，在图像尺度空间提取角点代替 SIFT 特征点，并根
据角点是边缘曲率极值理论，预先采用 Canny 算子得到高斯边缘图像金字塔，再提取角点并进行尺度选择。实验结
果表明: 该算法在保障高准确率的前提下大幅度提高特征提取效率-By the SIFT feature extraction, feature descriptions and feature matching descriptors 3 parts, the large number of feature extraction operator established feature descriptor computation high, resulting in low efficiency of the algorithm. Presents a SEC (SIFT-Edge-Corner) algorithm, the image scale space instead of SIFT feature extraction corner points and corner points based on extreme value theory is an edge curvature in advance using Canny operator edge image obtained Gaussian pyramid, and then extract corner point and scale selection. Experimental results show that: the algorithm protect high accuracy under the premise of feature extraction efficiency greatly improved
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Size: 231424 |
Author: 焦婷 |
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Description: Circle Detection Based
on Multiscale Edge Curvature Estimation
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Size: 265216 |
Author: sali |
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Description: This gridlib collection has arisen decades of application programming
at NASA Ames Research Center involving (mostly) structured grids in 2- and
3-space, including many utilities for generating grid point distributions
along a line or curve. Of these, curvature-based and (extremely precise)
Vinokur-type distributions are most valuable. See program DISTRIBUTE for
driving such utilities. Transfinite interpolation, elliptic smoothing, and
grid perturbations are also supported here.-This gridlib collection has arisen decades of application programming
at NASA Ames Research Center involving (mostly) structured grids in 2- and
3-space, including many utilities for generating grid point distributions
along a line or curve. Of these, curvature-based and (extremely precise)
Vinokur-type distributions are most valuable. See program DISTRIBUTE for
driving such utilities. Transfinite interpolation, elliptic smoothing, and
grid perturbations are also supported here.
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Size: 164864 |
Author: jyj |
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