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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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MATLAB神经网络识别手写体数字识别数字的源泉。
MATLAB 神经网络用于数字识别源程序 手写数字识别,有图例,大家可以-MATLAB neural network to identify the source for digital handwritten numeral recognition, there are legends, we will look at
- 2022-03-29 17:44:30下载
- 积分:1
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经典OpenCV目标跟踪源程序
需要一个int ipp6.0 MILTRACK README, Version 1.0
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This code includes an implementation of the MilTrack algorithm [1], as well as a re-implemenation of the Online AdaBoost tracker described in [2], though with some modifications. This code requires both OpenCV 1.0 (http://sourceforge.net/projects/opencvlibrary/) and Intel IPP 6.0 (http://www.intel.com/cd/software/products/asmo-na/eng/302910.htm) to be installed on your machine. It has only been tested on a machine running Windows XP, usiong Visual Studio 9.0. In order for the code to run, make sure you have the OpenCV bin directory, and the Intel IPP bin directory in your system path.
- 2022-03-16 00:10:00下载
- 积分:1
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夕阳醉了 一个用FLASH MX编的小程序
夕阳醉了 一个用FLASH MX编的小程序-sunset of a drunk with Flash MX series of small programs
- 2022-05-16 06:44:27下载
- 积分:1
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完整的DICOM医学图象浏览,可以读出DICOM图象,及其属性。并且把JPEG图象和 BMP图象转换为DICOM图象。并实现视频,AVI接口...
完整的DICOM医学图象浏览,可以读出DICOM图象,及其属性。并且把JPEG图象和 BMP图象转换为DICOM图象。并实现视频,AVI接口-A complete dicom image biewer, which can read the dicom image, and its properties and put the Jpg and Bmp image to Dicom format. It also realize the video and avi interface.
- 2022-01-26 00:38:48下载
- 积分:1
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刚学会做的人物移动行走和碰撞检测
刚学会做的人物移动行走和碰撞检测-People do刚学会mobile walking and Collision Detection
- 2022-06-29 18:29:56下载
- 积分:1
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Image recognition, through the matrix, respectively, read into the shape of imag...
图像识别,通过矩阵计算分别读入图像的形状,可区分三角,椭圆,圆形,长方等规则几何-Image recognition, through the matrix, respectively, read into the shape of images, can be distinguished triangle, oval, round, rectangular, such as the rules of geometry
- 2022-03-21 00:15:18下载
- 积分:1
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图形学中的三位变换程序,采用vc实现的。
图形学中的三位变换程序,采用vc实现的。-Graphics of the three transformation process, using vc achieved.
- 2022-05-12 15:56:47下载
- 积分:1
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YUV422 转 RGB 很好用 YUB422RGB 图片转换已经测试过OK
YUV422 转 RGB 很好用 YUB422RGB 图片转换已经测试过OK-YUV422 转 RGB
- 2023-01-12 21:40:04下载
- 积分:1
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一个图像质量评价方法的源代码,区别于传统的PSNR评价方法,属于图像处理学科研究的前沿。
一个图像质量评价方法的源代码,区别于传统的PSNR评价方法,属于图像处理学科研究的前沿。-a method to evaluate image quality of the source code, PSNR different from the traditional evaluation methods, image processing belonging to the forefront of interdisciplinary research.
- 2022-07-21 14:01:46下载
- 积分:1