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surf特征点检测和匹配
surf算法的具体实现:
Surf算法原理
(1)、构建Hessian矩阵
(2)、构建尺度空间
图像的尺度空间是这幅图像在不同解析度下的表示,由式(4)知,一幅图像j(X)在不同解析度下的表示可以利用高斯核G(£)的卷积来实现,图像的尺度大小一般用高斯标准差来表示[6]。在计算视觉领域,尺度空间被象征性的表述为一个图像金字塔,其中,输入图像函数反复与高斯函数的核卷积并反复对其进行二次抽样,这种方法主要用于Sift算法的实现,但每层图像依赖于前一层图像,并且图像需要重设尺寸,因此,这种计算方法运算量较大,而SURF算法申请增加图像核的尺寸,这也是SIFT算法与SURF算法在使用金字塔原理方面的不同。算法允许尺度空间多层图像同时被处理,不需对图像进行二次抽样,从而提高算法性能。图1(a)是传统方式建立一个如图所示的金字塔结构,图像的寸是变化的,
- 2022-04-15 04:54:37下载
- 积分:1
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这一反射模型(BRDF)检视学生在写
This a reflection model (BRDF) viewer written by students in the
course 15-860.
See http://www.cs.cmu.edu/afs/cs/project/classes-ph/860.96/pub/www/860.html
for info on the course.
- 2022-01-25 23:25:55下载
- 积分:1
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封装了的画统计图(包括条形统计图,扇形图和折线图)的类...
封装了的画统计图(包括条形统计图,扇形图和折线图)的类-Packaging of the painting statistics (including bar charts, maps and broken fan) Class
- 2022-02-03 18:51:03下载
- 积分:1
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huffman图象编码解码源程序
huffman图象编码解码源程序-huffman image coding decoding source program
- 2022-08-06 00:59:50下载
- 积分:1
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用vc + mapobjects开发的源代码,用鼠标对多边形进行操作,实现了多边形的相交计算功能。...
用vc + mapobjects开发的源代码,用鼠标对多边形进行操作,实现了多边形的相交计算功能。-with vc MapObjects development of the source code, using the mouse to operate polygons and achieve the intersection of polygons computing capabilities.
- 2022-08-15 01:43:48下载
- 积分:1
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直方图修正
直方图修正-彩色变换算法源代码
可进行图象平移,旋转,镜像,转置,缩放等几何变换-Histogram amendment- Color Transform algorithm source code can be image translation, rotation, mirror, transpose, transform geometric scaling
- 2023-08-28 02:55:04下载
- 积分:1
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opengl 的C++源程序代码实例
可直接运行 没有错误
opengl 的C++源程序代码实例
可直接运行 没有错误-opengl the C++ source code examples can be run without error
- 2022-03-24 06:41:18下载
- 积分:1
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模拟时钟的C程序
模拟时钟的C程序-Analog clock C procedures
- 2022-08-31 18:15:03下载
- 积分:1
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Eigenface Face Recognition System
All functions are easy to use, as they are h...
Eigenface Face Recognition System
All functions are easy to use, as they are heavy commented.
Furthermore, a sample script is included to show their usage. -Eigenface Face Recognition SystemAll functions are easy to use, as they are heavy commented. Furthermore, a sample script is included to show their usage.
- 2023-01-12 05:15:03下载
- 积分:1
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Bayesian classifier on the experimental design is suitable for entry, a mass is...
关于贝叶斯分类器设计的实验,适合入门,上一个传错了,抱歉-Bayesian classifier on the experimental design is suitable for entry, a mass is wrong, sorry
- 2023-09-09 01:50:04下载
- 积分:1