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sphere
this folder contains matlab codes for minimize sphere with pso algorithm.
- 2013-08-05 13:31:06下载
- 积分:1
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QuZao
夜间图像去噪MATLAB代码包,里边含有各种M文件和图像例子(decompose of picture)
- 2014-12-02 10:45:43下载
- 积分:1
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loadflow_NR-method
load flow analysis by newton raphson method
- 2012-02-05 11:07:25下载
- 积分:1
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optimum.rar
基于遗传算法整定的PID控制算法的Matlab仿真源程序(Based on genetic algorithm-tuning PID control algorithm of the Matlab simulation source)
- 2008-07-06 21:17:34下载
- 积分:1
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轻松实现GM模型的操作 GM(1-N)
GM(1,N)模型的MATLAB实现,轻松实现GM模型的操作,且易于实现,很方便(MATLAB implementation of GM (1, N) model)
- 2021-03-30 22:39:09下载
- 积分:1
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quantum
Electron Density simulation
- 2011-10-23 11:08:52下载
- 积分:1
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DivisorPolinomial---Table
Divisor polinomial. Sirve para divi polinomios con valores binarios
- 2015-02-03 08:05:06下载
- 积分:1
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untitledpj
A Complete Modeling and Simulation of
Induction Generator Wind Power Systems
- 2012-04-30 19:55:17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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tuxiangcuangaifenxingxue
现在大多数图像的复制和粘贴,篡改检测算法对于区域复制后的进一步混合处理不能进行有效检验。(Most of the existing detection algorithms for image copy-move forgery cann t effectively detect the sequential mixed image forgeries. )
- 2014-03-03 18:54:26下载
- 积分:1