之前因为考试,中断了实验室的工作,现在结束考试了,不能再荒废了. 最近看了一篇关于序列水印的文章,大体思想是:对于一个网格序列,首先对第一帧进行处理,在第一帧上,用网格分割算法(SDF)将网格分割成几个有意义的区域.在每个区域中,计算区域中的点到区域边界的测地线距离,根据测地线距离再将区域里的点分到不同的集合中,然后使集合中测地线距离的平均值保持在规定的范围内,从而嵌入水印. 下面介绍具体做法. 水印序列:+1.-1序列,由伪随机函数生成 网格分割算法:Shape Diameter Functi…

这周看了一篇动态网格序列水印的论文,由于目前在网格序列上做水印的工作特别少,加之我所看的这篇论文中的叙述相对简洁,理解起来颇为困难.好在请教了博士师兄,思路明朗了许多,也就把这思路整理在此了. 论文作者提出了一种三维网格序列盲水印算法,在他们的算法中用到了小波分析.我对小波分析只有一个大概的了解,所以细节的理解上可能不尽正确,索性就不详细解释小波分解的知识了. 首先介绍论文中水印的产生: 此篇论文中的水印为 W= +1 或 W = -1,具体位数上嵌入+1还是 -1 作者没有做详细解释 然后介绍…

refer to: http://www.stealthcopter.com/blog/2009/09/python-calculating-pi-using-random-numbers/ During my undergraduate degree I wrote a program in fortran 95 to calculate pi using random numbers. My aim is to rewrite it efficiently in python. I know…

都是order by的注入,作者连图片都懒得改了... 注意和整型的区别,前引号用提交的引号闭合,后引号用#注释 http://192.168.136.128/sqli-labs-master/Less-49/?sort=1' and sleep(0.1)%23…

This article come from HEREARS-L1: Learning Tuesday 10:30–12:30; Oral Session; Room: Leonard de Vinci 10:30  ARS-L1.1—GROUP STRUCTURED DIRTY DICTIONARY LEARNING FOR CLASSIFICATION Yuanming Suo, Minh Dao, Trac Tran, Johns Hopkins University, USA; Hojj…

Two salient region detection methods are proposed in this paper: HC AND RC HC: Histogram based contrast 1. Primary method It is simply to calculate the saliency of each color in the input image, where each pixel's saliency is defined using its color…

Abstract This paper presents a fundus image analysis based computer aided system for automatic classification and grading of cataract, which provides great potentials to reduce the burden of well-experienced ophthalmologists (the scarce resources) an…

Method Handles in Java 目录 Method Handles in Java 1.介绍 2.什么是MethodHandle 3. Method Handles vs Reflection 4.创建method handle 5.创建MethodType 6.查找MethodHandle 6.1 Method Handle for Methods 6.2.Method Handle for Static Methods 6.3. Method Handle for Constr…

Computational Geometry The Geometry Center (UIUC) Computational Geometry Pages (UIUC) Geometry in Action (UIC) Geometric Resource (UFL) CAGD Applets (UKA) Voronoi/Delaunay Applet (CornellUniversity) Directory of Computational Geometry Software (Dr. N…

@http://www-cs-faculty.stanford.edu/people/karpathy/cvpr2015papers/ CVPR 2015 papers (in nicer format than this) maintained by @karpathy NEW: This year I also embedded the (1,2-gram) tfidf vectors of all papers with t-sne and placed them in an interf…