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MATLAB
QR分解-householder reflection(householder reflection)
- 2020-11-02 10:29:53下载
- 积分：1
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sudoku_yue
this is the sudoku game by using matlab
- 2009-12-28 18:17:21下载
- 积分：1
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shanchen
运用shancen格子玻尔兹曼模型模拟两相分离，验证可行(Use shancen lattice Boltzmann model to simulate two-phase separation, verification feasible)
- 2013-12-27 15:48:53下载
- 积分：1
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danbai
说明： 这是关于非线性单摆的混沌解法后期出现的庞加莱图的matlab程序
(This is a nonlinear pendulum on the latter part of the chaotic solution of the Poincare map matlab program)
- 2020-08-29 22:28:11下载
- 积分：1
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53607899dianjishiliangkongzhi
Direct Torque Control
- 2010-05-21 01:23:58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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Language-signal-classification-
Bp神经网络实现语音信号的分类 效果十分好 值得参考(Language signal classification Bp neural network)
- 2014-12-08 13:56:03下载
- 积分：1
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shah-method-for-PDOF
This code is shah s iterative algorithm for selecting primary degrees of freedom in system reduction methodology.
- 2013-12-07 11:17:45下载
- 积分：1
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Armada
Data Mining toolboox that extracts Association Rules from numerical data files using a variety of selectable techniques and criteria
- 2009-06-13 07:59:13下载
- 积分：1
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gongzhenjietiao
用于滚动轴承故障诊断，找出特征频率，从而进行滚动轴承缺陷进行分析。(For rolling bearing fault diagnosis, to identify the characteristic frequency of rolling bearing defects were analyzed.)
- 2016-02-18 05:45:18下载
- 积分：1
