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bodejiaozhengyuanli
在matlab环境下,控制系统设计实验中的,bode校正原理(In the matlab environment, control system design experiment, bode correction principle)
- 2010-09-15 22:28:09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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meshless-in-solid-mechanics
无网格法在固体力学中的应用书籍,内含源代码程序。(Meshless method applied in solid mechanics books, containing the source code program.)
- 2013-11-02 19:03:45下载
- 积分:1
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FIRlvboqisheji
有关有限脉冲响应滤波器的设计方法的介绍。(For finite impulse response filter design methods introduced.)
- 2011-05-23 09:58:11下载
- 积分:1
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matlab
matlab 教程(matlab tutorial)
- 2010-05-06 22:55:51下载
- 积分:1
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snake
MATLAB编的贪吃蛇,可以算则难度,地图,有音乐。一个不错的小程序。(MATLAB code of the Snake, you can count the degree of difficulty, maps, musical. A nice little program.)
- 2010-12-08 10:20:50下载
- 积分:1
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ZFMMSEFEQ
Matlab code for Zero Forcing MMSE Algorithm
- 2011-04-28 10:35:06下载
- 积分:1
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matlabeit2d
电阻抗层析医学成像软件包,MATLAB语言编写,带有说明,以及演示用法(Electrical impedance tomography in medical imaging software package, MATLAB language, with descriptions and usage demo)
- 2020-10-21 09:17:24下载
- 积分:1
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ionosphere
ionosphere problem solving
- 2013-12-09 19:35:54下载
- 积分:1
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zibianxiaoboquzao
自变小波去噪的过程,让你了解其原理和过程,希望对你有帮助(wavelet tranform for denoising)
- 2011-12-12 20:41:13下载
- 积分:1