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linefit
用于直线拟合的matlab程序,用法请见函数内部的使用说明(linear fitting for the Matlab procedures, and applying the function see internal use)
- 2007-05-05 15:59:13下载
- 积分:1
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nan_wang_dan_xiang
南网单相表招标技术规范
南网单相表招标技术规范(South Network tender technical specifications of single-phase form)
- 2009-12-28 11:41:48下载
- 积分:1
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3336g769
satellite communication
- 2011-01-21 02:34:12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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paper2
中继增强的LTE-A蜂窝网络中路由方案的优化.pdf(Optimization .pdf relay enhanced LTE-A cellular network routing scheme.PDF)
- 2014-11-02 21:03:14下载
- 积分:1
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dac
将数字信号转换为模拟信号的电路称为数模转换器(d/a转换器或dac)(digital to analog converter)
- 2013-04-07 21:45:47下载
- 积分:1
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CENTER-GM(1-1)
中心逼近时的灰色预测,根据实际情况通过不断调整matlab程序中的m值,达到更高的精度。(Change the grey prediction of background value, through the continuous adjustment of the m value in the matlab program according to the actual situation, to achieve higher accuracy.)
- 2015-03-11 22:29:27下载
- 积分:1
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chap4
边缘检测的MATLAB程序源代码,检测8位的图片(Edge detection of the MATLAB source code, testing the 8 Photos)
- 2009-03-06 11:34:01下载
- 积分:1
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kkk
用于动态矩阵最优控制,主要用于汽车主动转向稳定性控制(For the dynamic matrix optimal control, mainly used in automotive active steering, stability control)
- 2012-06-26 17:08:59下载
- 积分:1
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P
说明: P模型数据包罗分析法,一种数学建模的实用方法,对你的比赛,和应用很有帮助(A good mathematical modeling tool, It is very helpful to your study MATLAB)
- 2014-09-23 18:34:58下载
- 积分:1