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zhichixiangliangjidaolun[1]
这是一本支持向量机的书籍,这本书在支持向量机书籍的中文书籍中具有一定权威。(This is a support vector machine books, this book is a book in support vector machine has a certain authority of the Chinese-language books.)
- 2010-07-28 14:49:42下载
- 积分:1
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chenggong
bp matlab版
bp 三层神经网络,用于函数逼近。(bp matlab version bp three-layered neural networks for function approximation.)
- 2010-01-19 14:30:25下载
- 积分:1
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A
说明: antenna degign fractal
- 2011-03-04 18:29:42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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mynnctrl
matlab中的神经网络控制系统工具箱,可以用来方便的开发基于神经网络的控制系统(Matlab the neural network control system toolbox. can be used to facilitate the development of neural network based control system)
- 2006-05-17 16:38:08下载
- 积分:1
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PSO
基本粒子群优化算法Matlab源程序,下面是主函数的源程序(Particle Swarm Optimization Algorithm Matlab source code, the following is the main function of the source)
- 2011-04-20 10:46:27下载
- 积分:1
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Matlab-Ga
基于Matlab遗传算法的最优投资组合选择(Matlab genetic algorithm-based optimal portfolio selection)
- 2013-05-10 20:20:55下载
- 积分:1
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ThefullversionofMATLABvideoplayer
说明: 完整版的MATLAB视频播放程序代码说明文字(The full version of MATLAB video player
)
- 2009-09-01 18:32:47下载
- 积分:1
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Xtractor
To file convertion from ETNA EVT file into MatLab or ASCII
- 2011-08-31 03:46:04下载
- 积分:1
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2PSK01
matlab下,用dspbuilder编写的 2psk调制和解调的例程。适合新手学习。(Under matlab, prepared dspbuilder 2psk modulation and demodulation routines. For beginners to learn.)
- 2014-02-01 18:46:26下载
- 积分:1