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sift

于 2020-01-08 发布

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下载积分: 1 下载次数: 4

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代码说明：

说明： SIFT特征点的提取和匹配，SIFT算法首先在尺度空间上进行关键点检测，确定关键点的位置和关键点所处的尺度，然后使用关键点邻域梯度的主方向作为该点的方向特征，最后由关键点邻域梯度信息生成关键点的特征向量(SIFT algorithm firstly detects the key points in the scale space, determines the location of the key points and the scale of the key points, then uses the main direction of the key point neighborhood gradient as the direction feature of the point, and finally generates the feature vector of the key points from the key point neighborhood gradient information)

文件列表：

sift, 0 , 2020-01-08
sift\1.jpg, 203710 , 2018-12-14
sift\2.jpg, 69363 , 2005-06-10
sift\appendimages.m, 461 , 2005-07-08
sift\basmati.pgm, 46433 , 2005-07-08
sift\book.pgm, 97697 , 2005-07-08
sift\box.pgm, 72310 , 2005-07-08
sift\defs.h, 1920 , 2005-07-08
sift\LICENSE, 1055 , 2005-07-08
sift\Makefile, 631 , 2005-07-08
sift\match.c, 4876 , 2005-07-08
sift\README, 7952 , 2005-07-08
sift\scene.pgm, 196623 , 2005-07-08
sift\showkeys.m, 1699 , 2005-07-08
sift\sift, 45070 , 2005-07-08
sift\sift.m, 2432 , 2020-01-08
sift\siftWin32.exe, 94208 , 2005-07-08
sift\tmp.jpg, 90015 , 2020-01-08
sift\tmp.key, 469364 , 2020-01-08
sift\Untitled6.m, 116 , 2020-01-08
sift\util.c, 7493 , 2005-07-08

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2021-01-28 16:18:42下载

积分：1
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积分：1
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2005-09-24 18:51:13下载

积分：1
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2013-11-17 06:26:42下载

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2010-06-03 20:57:59下载

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二维分数阶傅立叶变换程序，可用于图像，信号的处理，博士师兄编写，亲测可用(2-D Fractional Fourier transform)

2021-01-25 12:18:42下载

积分：1
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水平集(level set)的基本思想是将界面看成高一维空间中某一函数ψ（称为水平集函数）的零水平集，同时界面的演化也扩充到高一维的空间中。我们将水平集函数按照它所满足的发展方程进行演化或迭代，由于水平集函数不断进行演化，所以对应的零水平集也在不断变化，当水平集演化趋于平稳时，演化停止，得到界面形状。(The level set (level set) the basic idea is to interface as a higher dimensional space in a function (called a level set function) of the zero level set, and the interface evolution also extended to higher dimensional space. We evolve or iterate the level set function according to the evolution equation it satisfies. Because the level set function keeps evolving, so the corresponding zero level set is also changing. When the level set evolves to a stable state, the evolution stops, and the interface shape is obtained.)

2018-03-16 09:47:21下载

积分：1
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积分：1

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