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julei
matlab的fcm聚类源程序,希望对大家有帮助。谢谢(The fcm clustering matlab source code, want to help everyone. Thanks)
- 2010-01-05 18:03:10下载
- 积分:1
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polarization-array-beamforming
针对极化阵列的波束综合问题,并把这一问题描述成一个凸优化问题。
(For polarization array pattern synthesis problem, and describe it as a convex optimization problem.)
- 2013-12-16 19:37:19下载
- 积分:1
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burst
finding the burst image for skew angle detection
- 2010-06-07 18:47:35下载
- 积分:1
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12.11.Cichocki
Cichocki教授的一些关于盲源分离的研究成果。内容主要在于盲源的提取。是一部分很好的内容。(Cichocki D.R,blind source separation,blind source extraction)
- 2011-12-26 16:44:16下载
- 积分:1
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Non-stationary-and-time-varying-HHT
非平稳时变信号的希尔伯特变化,可以实现EMD,HHS。(non-stationary and time-varying HHT)
- 2012-01-29 16:26:00下载
- 积分:1
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levelset
说明: 是一个介绍水平集的ppt,水平集方法及其在图像分割和目标跟踪中的应用(Level set is a description of the ppt, the level set method in image segmentation and object tracking application)
- 2010-04-26 22:27:15下载
- 积分:1
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CLSPSO
matlab 最优化算法matlab 最优化算法matlab 最优化算法matlab 最优化算法(matlab zuiyouhau suanfa )
- 2012-03-28 14:56:26下载
- 积分:1
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CH2
multiple input multiple output capacity
- 2011-06-21 23:42:08下载
- 积分:1
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sift
1 SIFT 发展历程
SIFT算法由D.G.Lowe 1999年提出,2004年完善总结。后来Y.Ke将其描述子部分用PCA代替直方图的方式,对其进行改进。
2 SIFT 主要思想
SIFT算法是一种提取局部特征的算法,在尺度空间寻找极值点,提取位置,尺度,旋转不变量。
3 SIFT算法的主要特点:
a) SIFT特征是图像的局部特征,其对旋转、尺度缩放、亮度变化保持不变性,对视角变化、仿射变换、噪声也保持一定程度的稳定性。
b) 独特性(Distinctiveness)好,信息量丰富,适用于在海量特征数据库中进行快速、准确的匹配[23]。
c) 多量性,即使少数的几个物体也可以产生大量SIFT特征向量。
d) 高速性,经优化的SIFT匹配算法甚至可以达到实时的要求。
e) 可扩展性,可以很方便的与其他形式的特征向量进行联合。
4 SIFT算法步骤:
1) 检测尺度空间极值点
2) 精确定位极值点
3) 为每个关键点指定方向参数
4) 关键点描述子的生成
本包内容为sift算法matlab源码(1 SIFT course of development
SIFT algorithm by DGLowe in 1999, the perfect summary of 2004. Later Y.Ke its description of the sub-part of the histogram with PCA instead of its improvement.
2 the SIFT main idea
The SIFT algorithm is an algorithm to extract local features in scale space to find the extreme point of the extraction location, scale, rotation invariant.
3 the main features of the SIFT algorithm:
a) SIFT feature is the local characteristics of the image, zoom, rotate, scale, brightness change to maintain invariance, the perspective changes, affine transformation, the noise also maintain a certain degree of stability.
b) unique (Distinctiveness), informative, and mass characteristics database for fast, accurate matching [23].
c) large amounts, even if a handful of objects can also produce a large number of SIFT feature vectors.
d) high-speed and optimized SIFT matching algorithm can even achieve real-time requirements.
e) The scalability can be very convenient fe)
- 2012-05-25 15:31:16下载
- 积分:1
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C-Cmethod
C-CMethod.m C-C法主函数,调用方式见函数体
correlation_integral.m 关联积分求解(被C-C法主函数调用)
disjoint.m 将时间序列分为t个不相交的向量
heaviside.m 判断函数>0为1,<0为0
reconstitution.m 相空间重构函数
lorenz_phase.m 实验函数,用lorenz系统测试C-C法
lorenz_sim.mdl 用simulink建立的lorenz系统(C-CMethod.m CC method main function, see the body of the function invocation correlation_integral.m correlation integral solution (CC method is the primary function call) disjoint.m time series is divided into t disjoint vector heaviside.m determine the function> 0 1, < 0 0 reconstitution.m experimental phase space reconstruction function lorenz_phase.m function lorenz system test with CC method lorenz_sim.mdl established lorenz system with simulink)
- 2013-09-04 19:30:46下载
- 积分:1