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classical-algorithm-matlab-program
说明: matlab经典算法的程序,包含了几乎所有matlab的经典算法,很值得推荐的(classical algorithm matlab program, matlab contains almost all the classical algorithm, it is highly recommended)
- 2011-02-22 10:09:35下载
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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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29782178Hzy_huffman
MATLAB的编程,用于哈弗曼码的编码和解码,希望会对你用途啊(MATLAB programming for Havermann code encoding and decoding, I hope you will use ah)
- 2010-06-16 17:52:14下载
- 积分:1
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laplace_demo
使用matlab去秀出Laplace Approximation to Posterior并绘出正确图表(Using matlab to show off Laplace Approximation to Posterior and draw the correct diagram)
- 2010-11-08 22:15:54下载
- 积分:1
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immerge
此程序是对不同传感器得到的图像进行融合,以便得到更好的图像(This program is an image of different sensors are fused to obtain better image)
- 2010-05-14 22:09:29下载
- 积分:1
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hangban1
多服务区机场航班排队问题,计算平均等待时间和服务区的飞机分布(Airport flight queue problem with several Service area)
- 2012-06-22 14:50:22下载
- 积分:1
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SA
说明: Matlab code for simulation of Simulated Annuling
- 2014-08-08 20:35:35下载
- 积分:1
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GLCM
基于matlab 提取纹理灰度共生矩阵 源代码(Based on the co-occurrence matrix matlab source code to extract the texture of gray)
- 2015-04-20 13:41:41下载
- 积分:1
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ztransformer
this is the Z transform matlab code
- 2009-05-11 15:48:38下载
- 积分:1
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arconf
For an AR(p) model that has been fitted with ARFIT, [Aerr,werr]=ARCONF(A,C,w,th) computes the margins of error Aerr and werr such that (A +/- Aerr) and (w +/- werr) are approximate 95 confidence intervals for the elements of the coefficient matrix A and for the components of the intercept vector w. The input arguments of ARCONF are output of AR.
- 2013-01-25 20:05:57下载
- 积分:1