sinkhole detection

Fast Corner detection Fast corner point by E. Professor Rosten suggests that this approach is as fast as its name would be compared to other testing methods. It is worth noting that the theories he has studied are of practical interest and are very fast. Professor Rosten achieved fast corner detection and provided it to the OPENCV, which is quite loving, but the functions in OPENCV and the implementation o

This paper simply introduces the method of the edge detection, and the results of MATLAB are demonstrated. What is the edge. The edge is generally refers to the image in a certain local intensity of the drastic changes in the region. The intensity change generally has two kinds of conditions: 1. Step Change The grayscale change image is shown in the following image (horizontal axis represents spatial variation, vertical axis represents grayscale chan

Theory of odor detection and anti-odor Detection I. Basic knowledge of the stinker 1.1 What is a stinking detector? Sniff is an English form of the stinker. It can be understood as a computer-installed eavesdropping device. It can be used to snoop a large amount of information on the computer's network. A simple explanation: A is a telephone eavesdropping device. A can be used to intercept the communi

Event detection, which detects whether an event exists (available) in a different browser, is also important in the process of writing JavaScript, such as the Mouseenter/mouseleave event is practical, but not all browsers provide standard support, So you need to simulate yourself manually, namely: function addEvent(element, name, handler) { if (name == 'mouseenter' !hasEvent(name, element)) { //通过其他手段模拟mouseenter事件 } //正常的事件注册 }; This article w

MHA masterha_check_repl detection process, gocheck paper detection Whether the MHA deployment and configuration are OK. We can use the masterha_check_ssh and masterha_check_repl scripts provided by MHA to check whether the MHA deployment and configuration are OK. Masterha_check_repl detection is an important step to ensure successful MHA switching. This article m

Directory Joint probability distribution Normal Anomaly Detection Model Training Model evaluation In real life there are many situations that need to be prevented in advance, for example, before the plane takes off, the aircraft parts are evaluated to see whether the engine and other parts are of normal performance, if there are potential problems (abnormal conditions may occur), it needs to be repaired or replaced in time.So

Motion detection (foreground detection) (1) vibe Zouxy09@qq.com Http://blog.csdn.net/zouxy09 Due to the needs of the development of monitoring, there are still a lot of research on foreground detection, and there are also a lot of new methods and ideas. My personal knowledge is summarized as follows: Frame Difference and background subtraction (GMM, codebook, so

Based on the characteristics of hep (histograms of equivalent patterns "1"), which has good texture classification effect, LBP (local binary patterns "2") is the most commonly used feature under the HEP Framework and has a brightness, Rotation and other good invariant properties. In the block-based video smoke detection, it is often used as a feature of texture classification. However, the image of a block is localized. This article mainly proposes th

Do a website of the Android client, the user installed to their mobile phone, if I have a new version how to do? To have a version update feature. Original version detection is best done automatically. But if every time you open the program, you have to first detect a round, is a waste, after all, version update is a small probability of things. Perhaps the process can be opened, judge the time, a single day on the test, the date does not detect, or r

This article is reproduced from: https://blog.csdn.net/shuzfan/article/details/52625449 This is an introduction to the face detection of technology from the view of the article: "2016 ACM MM unitbox:an Advanced Object Detection Network". The code should not be put out, but the implementation is relatively simple. (Interrupt a sentence, the paper said speed can reach 12fps, I'm a little panic, we look at sci

) that the cube collides with in the current script, we can collision the Collider Component Object (collider) of the colliding game object by the parameters of these three methods. The collider object can then be used to get information about the game object mounted by the collider component.1 // Collision Start 2 void Oncollisionenter (Collision collision) {3 var name = collision.collider.name; 4 5 Debug.Log ("" + name); 6 }In this way, you can get the name of the g

More reliable screen detection methods and reliable screen Detection Methods Not long ago, I made an H5 project and needed some processing when the screen was changed. There is no doubt that you need to useOrientationchangeTo listen for landscape changes. Solution 1: // Listen to orientation changeswindow. addEventListener ("orientationchange", function (event) {// according to the event. orientation | scre

Four basic technologies can be used to check whether browsers support certain html5 features, from simple to complex order ......,. Four basic technologies can be used to check whether browsers support certain html5 features, from simple to complex order: 1. Check whether the Global Object (window or navigator) has specific attributes.If the browser supports the geographic location API, The Global navigator object will have an attribute named geolocation. Otherwise, the value of this attribute

FeedRecently a series of physics related, first of all to summarize some of the things written last year, and then see if you can masturbate a physics engine out.Ray detection in the previous write Ray tracking when there are some written, but at that time is relatively simple to write, just recently work on the use of these, so good to write.Write Ray Sphere's collision detection today.Environment:Unity5.2

PHP detects if URL exists method, PHP detection URL exists The example in this article describes the method by which PHP detects whether a URL exists. Share to everyone for your reference. Specific as follows: Copy the Code code as follows: function url_exists ($url) {$hdrs = @get_headers ($url);Return Is_array ($hdrs)? Preg_match ('/^http\\/\\d+\\.\\d+\\s+2\\d\\d\\s+.*$/', $hdrs [0]): false;} I hope this article is helpful to everyone's PHP prog

Chinese: Libo Hardware DetectionApplication Support/Official Website: http://www.weibo.com/souappEmail: souapp@163.comOfficial application download link:Http://www.souapp.com/site_media/SOUAPP_DeviceManager.apk Application description: Lipo hardware detection is an essential tool for gamers to quickly detect mobile phone hardware information. It is particularly recommended to high-end people in app development and app testing, which is very helpfu

How to use the "disk detection function" of Ghost to use the "disk detection function" of GhostBecause I have stored a large amount of data on the e-disk on my computer, the space is too short, and there is a lot of space left on disk C and disk D. Why don't I divide it into parts for the e-disk? Therefore, I used the lossless partition software PartitionMagic (PQ) in Windows to distribute the 1 GB disk and

2012-07-31 13:25 Corner Point Feature detection and matching is an important part of the computer Vision application, which needs to find the characteristics of the image to establish the corresponding relationship. Point, which is the special position in the image, is a very common feature, the local feature of the point can also be called "key feature Point" (KeyPoint feature), or "point of interest" (interestpoint), or "Corner" ( Conrner). The s

1 Background:The x86 platform has comprehensive user-mode memory detection tools such as valgrind. It can monitor detailed memory information during the running of the program to precisely locate memory problems. However, with the rapid emergence of new platforms, such as the TilePro64 CPU of Tilera, these tools cannot be transplanted in a timely manner. As a result, the new platform lacks the appropriate means to locate memory errors, such as memory

HT for Web visual QuadTree quad-Tree Collision Detection and quadtree Collision Detection A QuadTree tree is a tree-like data structure. Each node has four child nodes, which can recursively split two-dimensional planes into subareas. QuadTree is often used for spatial database indexing, 3D visible area cropping of vertebral bodies, and even image analysis. Today we are introducing the collision