High-Speed Tracking with Kernelized Correlation Filters(二)
首先看看get_features函数。
首先判断是hog特征还是gray,分两种情况。
如果是hog特征,调用fhog函数,返回x,并将矩阵x的第三维最后一个组数据删除(好奇fhog函数http://vision.ucsd.edu/~pdollar/toolbox/doc/index.html)。
- if features.hog,
- %HOG features, from Piotr's Toolbox
- x = double(fhog(single(im) / 255, cell_size, features.hog_orientations));
- x(:,:,end) = []; %remove all-zeros channel ("truncation feature")
- %将矩阵x的第三维最后一个组数据删除
- end
如果是gray,则直接对其归一化处理。
- if features.gray,
- %gray-level (scalar feature)
- x = double(im) / 255;
- x = x - mean(x(:));
- end
函数最后返回x
下面分析下各个核的correlation。
首先是gaussian核,计算跟CSK没什么两样:
- N = size(xf,1) * size(xf,2);
- xx = xf(:)' * xf(:) / N; %squared norm of x
- yy = yf(:)' * yf(:) / N; %squared norm of y
- %cross-correlation term in Fourier domain
- xyf = xf .* conj(yf);
- xy = sum(real(ifft2(xyf)), 3); %to spatial domain
- %calculate gaussian response for all positions, then go back to the
- %Fourier domain
- kf = fft2(exp(-1 / sigma^2 * max(0, (xx + yy - 2 * xy) / numel(xf))));
对于linear kernel
- kf = sum(xf .* conj(yf), 3) / numel(xf);
对于polynomial kernel
- 1 xyf = xf .* conj(yf);
- xy = sum(real(ifft2(xyf)), 3); %to spatial domain
- %calculate polynomial response for all positions, then go back to the
- %Fourier domain
- kf = fft2((xy / numel(xf) + a) .^ b);
High-Speed Tracking with Kernelized Correlation Filters(二)的更多相关文章
- KCF:High-Speed Tracking with Kernelized Correlation Filters 的翻译与分析(一)。分享与转发请注明出处-作者:行于此路
High-Speed Tracking with Kernelized Correlation Filters 的翻译与分析 基于核相关滤波器的高速目标跟踪方法,简称KCF 写在前面,之所以对这篇文章 ...
- High-Speed Tracking with Kernelized Correlation Filters
2015年的一篇论文,可参考:http://blog.csdn.net/carrierlxksuper/article/details/46461245. 另参考:http:// ...
- Correlation Filter in Visual Tracking系列一:Visual Object Tracking using Adaptive Correlation Filters 论文笔记
Visual Object Tracking using Adaptive Correlation Filters 一文发表于2010的CVPR上,是笔者所知的第一篇将correlation filt ...
- Hign-Speed Tracking with Kernelzied Correlation Filters
reference:Hign-Speed Tracking with Kernelzied Correlation Filters questions: The core componet of mo ...
- call Kernelized Correlation Filters Tracker(Matab) in Qt(c++)
recently, i need call the KCF tracker in my graduation project. the KCF tracker is fast and best per ...
- correlation filters in object tracking
http://www.cnblogs.com/hanhuili/p/4266990.html Correlation Filter in Visual Tracking系列一:Visual Objec ...
- Learning Spatial-Temporal Regularized Correlation Filters for Visual Tracking---随笔
Learning Spatial-Temporal Regularized Correlation Filters for Visual Tracking DCF跟踪算法因边界效应,鲁棒性较差.SRD ...
- Multi-hierarchical Independent Correlation Filters for Visual Tracking(MFT)略读
作者写道: 有幸在本届的VOT 2018 主赛中,我们的参赛方案Multi-solution Fusion for Visual Tracking(MFT)获得第一名的成绩,通过结果来看,MFT无论在 ...
- correlation filters in object tracking2
http://www.cnblogs.com/hanhuili/p/4281077.html Correlation Filter in Visual Tracking系列二:Fast Visual ...
随机推荐
- Andorid APK反逆向
Andorid APK反逆向解决方案---梆梆加固原理探寻http://blog.csdn.net/androidsecurity/article/details/8892635 Android AP ...
- GO_05_2:Golang 中 panic、recover、defer 的用法
函数 defer 1. 它的执行方式类似其他语言中的折构函数,在函数体执行结束后按照调用顺序的 相反顺序 逐个执行 2. 即使函数发生 严重错误 也会被执行,类似于 java 中 try{...} ...
- ROI POOLING 介绍
转自 https://blog.csdn.net/gbyy42299/article/details/80352418 Faster rcnn的整体构架: 训练的大致过程: 1.图片先缩放到MxN的尺 ...
- NAT—网络地址转换
参考链接:http://www.qingsword.com/qing/745.html 视频链接: 一.什么是NAT? NAT --- Network Address Translation 也就是 ...
- Ubuntu16.04.2安装Tensorflow
安装aptitude $ sudo apt-get install aptitude 安装python-pip python-dev $ sudo aptitude install python-pi ...
- bzoj千题计划146:bzoj3295: [Cqoi2011]动态逆序对
http://www.lydsy.com/JudgeOnline/problem.php?id=3295 正着删除看做倒着添加 对答案有贡献的数对满足以下3个条件: 出现时间:i<=j 权值大小 ...
- 2017 清北济南考前刷题Day 7 morning
期望得分:100+50+20=170 实际得分:10+50+20=80 1. 纸牌 题目描述 在桌面上放着n张纸牌,每张纸牌有两面,每面都写着一个非负整数.你的邪王真眼可以看到所有牌朝上的一面和朝下的 ...
- An Insight to References in C++
[An Insight to References in C++] 引用的本质是常指针.占用的内存和指针一样. 参考:http://www.codeproject.com/Articles/13363 ...
- MySQL在net中Datatime转换
<add name="adDb" connectionString="Persist Security Info=False;database=ad ...
- [转载]Visual Studio支持Node.js
http://news.cnblogs.com/n/193893/ https://nodejstools.codeplex.com/ 微软发布了一个官方插件“Node.js Tools for Vi ...