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1
MATLAB语言的概述与简介 请大家好好看看你 很好的(MATLAB)
- 2009-12-31 09:54:45下载
- 积分:1
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P0305
Matlab模拟图像受高斯白噪声和椒盐噪声的影响(Matlab simulation images by Gaussian white noise and pepper noise impact)
- 2013-07-09 11:11:05下载
- 积分:1
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videoresize
改变AVI视频文件的分辨率,并自动生成改变大小后的avi文件(change the size of avi file, and automatically generate a avi file that have been resized.)
- 2010-08-04 15:30:41下载
- 积分:1
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51CT
本程序是基于Matlab开发的,描述了一个机器人自动寻找最优路径的问题,使之得到了很好的解决。(This program is developed based on Matlab, describes a robot automatically finds the optimal path problem, so that it can be a good solution.)
- 2010-11-18 10:59:31下载
- 积分:1
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Lms_lichunhua1
白噪声经过AR模型的输出作为LMS滤波器的输入,已知:a1=1.558;a2=-0.81;白噪声方差为1.0,均值为0;u=0.002;利用Matlab实现:(White noise as the input of the LMS filter after the output of the AR model known: a1 = 1.558 a2 =-0.81 white noise variance of 1.0, an average of 0 u = 0.002 using Matlab:)
- 2012-11-28 18:27:16下载
- 积分:1
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Signal-spectrum-analysis-and-MATLAB
信号的频谱分析及MATLAB实现_张登奇(2)(Signal spectrum analysis and MATLAB _ Zhang Dengqi (2))
- 2013-05-24 10:30:11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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mixed-integer-programming-problem
处理混合整数规划问题,可以方便计算整数规划问题(Handle mixed integer programming problem)
- 2020-11-02 15:29:53下载
- 积分:1
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Matlab_exams
MATLAB 考题整理,附带了详细的答案,很好的资料(MATLAB exam finish, with a detailed answer, very good information)
- 2010-06-07 21:21:33下载
- 积分:1
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intro
Adaptive Techniques for Mixed Signal System on Chip
- 2009-03-12 13:45:31下载
- 积分:1