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Yale
这是一个模式识别中关于主成分分析的特征提取的matlab源码 (This is a pattern recognition principal component analysis on the feature extraction matlab source)
- 2010-06-02 09:14:08下载
- 积分:1
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Bayesguji
MTLAB程序源码源程序_Maltab在数学建模中的应用贝叶斯估计程序(bayesians madeling)
- 2013-03-16 15:05:43下载
- 积分:1
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matlab-neural-network
本代码通过matlab工具箱,对神经网络问题进行了研究,0-2代码对于神经网络进行训练,函数选择和误差调试,3代码对电路故障参数进行训练诊断,4代码对涡轮机故障参数进行故障诊断(The code through the matlab toolbox neural network conducted a study, 0-2 code for neural network training, function selection and error debugging, code 3 circuit fault diagnosis training parameters, four turbine fault code parameters for fault diagnosis)
- 2014-12-24 12:38:49下载
- 积分:1
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arma_mle
ARIMA modeling and estimation
- 2014-10-22 14:58:18下载
- 积分:1
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zernike
Zernikz descriptors: the similarity measure based on the descriptor
should deliver a similarity ordering that is close to
the application driven notion of resemblance.
- 2013-03-19 05:51:09下载
- 积分:1
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101
无刷电机的控制过程,在matlab/simulink中的仿真,经验证,代码可行。(Brushless motor control process simulation matlab/simulink proven, workable code.)
- 2013-04-08 13:50:09下载
- 积分:1
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VideoSudokuSolver
应用matlab的图像处理工具,使用摄像头实时解密数独的程序(The video sudoku solver)
- 2013-11-22 17:20:05下载
- 积分:1
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acvoltage_convertor
ac voltage controller
- 2016-06-24 21:48:33下载
- 积分:1
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ml
说明: 该算法包含极大似然估计的梯度算法和快速ica算法,已经调试成功过,调试时注意所给信号x是行向量还是列向量(The algorithm contains the maximum likelihood estimation of the gradient method and fast ica algorithm, has been debugged, debugging attention given signal x is a row vector or column vector)
- 2010-05-23 10:56:22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