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adpmedian
matlab数字图像处理中的自适应中值滤波函数(.m)(adaptive median filter function file in matlab)
- 2009-09-19 10:27:47下载
- 积分:1
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meanshift
实现了基于mean-shift的图像检索,实现了比较两图像的相似度,选择最相近的图片(To achieve mean-shift based image retrieval, to realize the similarity of two images, the selection of the most similar image)
- 2009-06-03 13:23:57下载
- 积分:1
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MIMO
输出MIMO冲激响应矩阵和发送接收端的相关系数矩阵(Output MIMO impulse response matrix and send the receiving end of the correlation coefficient matrix)
- 2010-05-22 15:56:59下载
- 积分:1
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lorenz-system-plot
lorenz系统,这是第一个文件定义lorenz系统(lorenz system plot this is file 1, the lorenz system define)
- 2013-07-31 16:13:10下载
- 积分:1
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7020
that is matlab code for linear regression , please enjoy!
- 2012-08-23 04:07:13下载
- 积分:1
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2-DIPUM-Code
Image processing Basic Programms -2 using Matlab(Image processing Basic Programms-2 using Matlab)
- 2009-06-06 18:16:48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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FIR
基于matlab GUI的一个滤波,运用FIR和IIR算法(A filter based on matlab GUI, use of FIR and IIR algorithm
)
- 2013-05-14 23:27:34下载
- 积分:1
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matlab_bcb
matlab混合编程系列:matlab与bcb混合编程——使用MATCOM(Matlab mixed programming Series: matlab and bcb mixed programming-using MATCOM)
- 2019-03-05 20:23:20下载
- 积分:1
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MMMM
fuzzy sliding mode controle of dc motor
- 2010-11-29 22:43:07下载
- 积分:1