In-game collision detection is divided into two stages: broad phase and narrow phase. The next thing to introduce is broad phase. At this stage of broad phase, our main task is to screen objects and filter out the objects that are most likely to collide .
Imagine that there are N objects on the screen, and if we have collision detection for every two objects, then the complexity of the time is n^2. But in f
First, Background introductionSkin detection has been widely used in many computer applications such as face recognition and tracking, gesture recognition, image retrieval and classification. The above research topics must solve a fundamental problem, that is, the image is precisely divided into two areas of the skin and background, the accuracy of the division is directly affecting the precision and performance of the follow-up work, so skin
This paper aims at the vulnerabilities of intrusion detection system to understand the hacker's intrusion methods. Once the network intrusion detection system is installed, the network intrusion detection system will analyze the hacker attacks on the Internet, and you can use the counterattack function of this intrusion detec
paper SourcesICCV2017 ARXIV report GitHub code (CAFFE-MATLAB)
The main problem in this paper is pedestrian detection. The author discusses how to apply semantic segmentation to pedestrian detection and improve the detection rate without damaging the detection efficiency. The author proposes a semantic Fusion network (s
With the development of network security technology, apart from firewall and anti-virus system protection, intrusion detection technology has become an effective way to defend against hacker attacks. Although the intrusion detection technology is still evolving, the market for intrusion detection products is growing, and the third wave of network security has bee
Linux Rootkit detection method based on memory Analysis0x00 Introduction
A Linux server finds an exception. For example, it is determined that the Rootkit has been implanted, but the routine Rootkit detection method by O M personnel is invalid. What else can we do in this situation?
Figure 1 Linux Server implanted with Rootkit
All html files with hidden links cannot be seen by ls.
Use the absolute ls-al
Original address: http://www.freebuf.com/articles/others-articles/71604.html(the original text is mainly aimed at spy type Webshell detection to discuss, the first part introduces the traditional method of detection Webshell, then find out the shortcomings of the traditional method, put forward a new method for Spy Webshell, this article mainly focus on its traditional methods of introduction) at present, t
1. Description of the problemWhen using Python for text processing, sometimes the text contained in Chinese, English, Japanese, and other languages, sometimes can not be processed at the same time, it is necessary to determine the current text belongs to which language. There is a LangID toolkit in Python that provides this functionality, andLangID currently supports detection in 97 languages, which is very useful. 2. Code of the programThe following
Domain Cache detection (DNS cache snooping) technologyIn a corporate network, DNS servers are typically configured to provide domain name resolution services for hosts within the network. These DNS not only resolves their own private domain name, but also recursively, requesting public DNS to resolve third-party domain names, such as baidu.com. To improve performance, it is common to use cached records to record resolved domain names, especially third
Currently, an application that analyzes real-time traffic is developed in Linux, and a memory leak is found in the program during a joint test.This is anxious, will soon be on-line, fortunately found a valgrind tool, the perfect solution to the problem of memory leaks.Recommend you can use to see.Valgrind is a set of simulation-based program debugging and analysis tools running on Linux, and its main author is Julian Seward, who won the Google-o ' Reilly Open Source Award, which contains a kerne
Recommended: Http://www.cnblogs.com/skynet/archive/2011/02/20/1959162.html Direct copy came, but before the study, just forget it, forgive this lazy ha.Memory leak detection under the Windows platformThe Visual Studio debugger and the C run-time (CRT) library below the Windows platform provide us with an effective way to detect and identify memory leaks in the following principles: Memory allocations are implemented through the CRT at runtime, as long
[Reprint]inno Setup, pre-uninstall detection process or service(2015-04-24 17:37:20)reproduced
Tags: Reproduced
Original address:inno Setup, pre-uninstall detection process or service go, two or three miles.There are a few minor problems with Inno packaging, and here's a summary:Inno.iss part of the content is as follows:1, 32-bit program PSVince.dll plug-in method.[Fil
and try to run the game resetHow, is not automatically calculate the nearest point!The reset point function is so easy to implementI do not need to calculate the nearest point in the game, just need to get the nearest road punctuation position.So the specific implementation of the plan according to your needs to do, here I provide only the ideaFirst publish this article to the home page, every time the first page will be spaced six hours compared to the egg painI'm writing two test articles abo
Traditionally, the User-agent detection method is used to detect the exact model of the target browser, including the name and version of the browser. is actually a string, obtained with Navigator.useragen or navigator.appname. As follows:
function Isie () {
Return Navigator.appName.indexOf ("Microsoft Internet Explorer")!=-1 document.all;
}
function IsIE6 () {
return Navigator.userAgent.split (";") [1].tolowercase (). IndexOf ("MSIE 6.0") = = "
way, do not panic, follow the small series of the following methods to repair the logic of these hard drives bad way.
1:windows disk tool to repair hard drive bad way
System with Disk Repair tool
When detection is a logical bad way, the easiest way we can try to use Windows comes with disk tools. Go to "My Computer" and choose a hard drive that has a bad logical path. Click the right mouse button, select the "Proper
There are several ways to do collision detection in the course of the game that you are developing:1. Add Collider to Unity onlyThis is the simplest one. After editing the skeletal animation in spine, import it into unity, so that the spawn bone can get the skeleton in spine and then add collider to the required bones. This method can also be used for simple collision applications, but it is not easy to use a complex one, such as the need to remove co
1. Trigger trigger: Tick Istrigger PropertiesTrigger detection Occurs when the player has just entered the triggering areavoid Ontriggerenter (Collider other){if (Other.tag = = "Player"){Todo}}Trigger detection Occurs when the player is in the trigger areavoid Ontrigglestay (Collider other){if (Other.tag = = "Player"){Todo}}2. Collider collision: Without checking the Istrigger attribute , two colliding obj
JianyanUse regular expression to do user password strength of passing judgment, too simple rough, not only user experience is poor, and user account security is poor. So how to accurately evaluate the strength of user passwords, to protect user account security? This paper analyzes and introduces several algorithms of password strength detection based on rule scoring, and gives the corresponding demonstration program. According to the security needs o
Some sites provide a custom error page for user friendly interaction, rather than displaying a large 404, such as the 404 Hint page on csdn as follows:This improves the user experience, but when writing the corresponding POC for detection only based on the HTTP header information returned, it is likely to cause false positives, in order to accurately detect the 404 page,Need to judge from two aspects of Status code and page content.It's easier to judg
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