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COST207.m
四种典型环境的cost 207模型的matlab仿真信道代码(Four kinds of typical environmental cost 207 model channel matlab simulation code)
- 2008-01-04 09:16:24下载
- 积分:1
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nonlinear
这本书最近看的觉得挺有用的,希望能对做这方面的朋友有所帮助!谢谢!(This book recently read that Tingyou use, hoping to make friends in this area help! Thank you!)
- 2011-05-31 21:33:31下载
- 积分:1
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memcached-1.4.20.tar
memcache使用,1.4.20包,免费下载哦(The use of Memcache, 1.4.20 package, free to download oh)
- 2014-09-28 12:03:14下载
- 积分:1
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MATLAB_FFT
HOWMEWORK LET S DO IT TOGETHER . ffT MATLAB CODE
- 2012-11-15 10:30:20下载
- 积分:1
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Eprom
EProm 试验程序,调试成功,解释详细(EProm testing procedures, testing success, to explain in detail)
- 2010-08-16 17:15:13下载
- 积分:1
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7.7
估算在给定门限下常用输入信号的带宽。函数将代表待分析波形的矢量signal作为输入(estimate in a given threshold under the common input signal bandwidth. Function will be representative of the waveform analysis as input vector signal)
- 2007-03-27 19:59:02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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ArthurCunha_thesis
GEOMETRICAL REPRESENTATION, PROCESSING, AND CODING
OF VISUAL INFORMATION
- 2010-02-07 08:20:43下载
- 积分:1
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jueceshu
决策树的matlab 程序代码 非常好用 适合初学者(Matlab code decision tree is very useful for beginners)
- 2009-06-07 00:40:59下载
- 积分:1
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MATLAB
matlab入门教材,讲解的内容比较基础,适合初学者学习(matlab introductory textbook to explain the contents of the basis for comparison, suitable for beginners to learn)
- 2013-03-23 17:22:12下载
- 积分:1