Detectors and descriptors of the FAST, BRIEF, ORB

Detectors and descriptors of the FAST, BRIEF, ORBsingular points.In this article, we will discuss some algorithms for searching and describing singular points of images. Here this topic is already rose , and more than once . I will assume that the basic definitions of the reader are already familiar, we will examine in detail the heuristic algorithms FAST, FAST-? FAST-ER, BRIEF, rBRIEF, ORB, and discuss the sparkling ideas underlying them. In part, this will be a free translation of the essence of several articles, there will be little code to "try."    here  Variable parameters (described in the code): radius of the circle (takes values ​​??3)...
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Report of the Club of Rome 201? Chapter ???: "Empty Peace Against the Complete World"

I suggest myself to deal with the report of the "world government", and at the same time help to translate the source.
 
 
Report of the Club of Rome 201? Chapter ???: "Empty Peace Against the Complete World"

 
 
The Club of Rome has always been aware of the philosophical roots of human history. Among the valuable scenarios of Kenneth Balding The meaning of the twentieth century , is the management of the "Spacecraft" Earth. " His book was called "one of five classic prophecies that first made sustainability a public issue."
 
 
But then many thinkers saw that management was difficult in conditions of complete peace. This became the main message of the Club of Rome in his early ...
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100500 ways of caching in Oracle Database

100500 ways of caching in Oracle DatabaseTelling what caches are, what a Result Cache is, how it is made in Oracle and in other databases is not very interesting and rather patterned. But everything gets completely different colors when it comes to specific examples.
Alexander Tokarev
( Shtock ) Built his report on Highload ++ 2017 on the basis of cases. And it was based on the cases, he told me when the home-made cache can be handy, what the pain of the server-side Result Cache is and how to replace it with the client, and in general brought up a number of useful tips for setting up Result Cache in Oracle.
 
 
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The US plans to seriously tackle the problem of space debris

The US plans to seriously tackle the problem of space debris  
 
Near-Earth space is becoming more accessible. To launch its own satellite into orbit, hundreds of millions of dollars are no longer needed - dozens are needed, and soon Ilon Mask promises to lower the cost of launching the rocket by almost an order of magnitude. Well, the more space vehicles a person launches into orbit, so, accordingly, there are more of them - the dependence is very simple.
 
 
And not all owners and operators of satellites calculate their trajectory in such a way that those, having completed their work cycle, fell back to Earth, burning in the atmosphere. Now there are hundreds of ...
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Parsing and working with Codable in Swift 4

Parsing and working with Codable in Swift 4  
 
The JSON format has become very popular, it is usually used to transfer data and execute queries in client-server applications. JSON parsing requires encoding /decoding tools of this format, and Apple recently upgraded them. In this article, we'll look at JSON parsing methods using the protocol. Decodable , let's compare the new protocol Codable with the predecessor NSCoding , we will evaluate the advantages and disadvantages, we will analyze everything with concrete examples, and also consider some features that are encountered in the implementation of protocols.
 
 
 
What is ...
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How to write a smart contract for ICO in 5 minutes

How to write a smart contract for ICO in 5 minutes  
 
Hello! In this article I will tell you how in 5 minutes and several teams in the terminal to launch a smart money collection contract for their ICO on Ethereum. This essay will potentially save you tens of thousands of US dollars, since any programmer - and not a programmer too - will be able to run a pro-audited and secure smart contract (instead of paying $ 1?000 - $ 7?000 for development). In short, you can send money to this smart contract and get tokens for this ERC20.
 
 
We can say that this article is a collection of all the experience that I got by launching the ICO for my project. Smart contract...
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Reports from the Minsk C ++ conference CoreHard Spring 2018

Reports from the Minsk C ++ conference CoreHard Spring 2018
 
On April 7 - ? the CoreHard community held the eighth international conference CoreHard Spring 2018 in Minsk dedicated to the C ++ language and accompanying "hardcore" technologies. The conference was attended by speakers from leading IT companies in Belarus, Russia, Ukraine, Germany and the Netherlands. They talked about their experience in development and testing.
 
 
Now the reports from the conference are freely available on YouTube and everyone can get acquainted with them. We thank the organizers of the conference.
 
25 years of C ++ history, flying by my eyes ...
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Security Week 22: two-second smart locks

Security Week 22: two-second smart locks The past week was marked by a couple of interesting news from the insecure world of Internet things, and the main event, of course, was the study of the smart lock Tapplock ( , News , Original report ). Researcher from Pen Test Partners Andrew Tierney did not just bypass the protection of the electronic lock, but rather discovered the complete absence of any security system in the "digital" part of the device.
 
Indiegogo , planning to collect 40 thousand dollars for bringing finished prototypes to ...
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11 circles of hell for those who do not have enough experience on the new work

11 circles of hell for those who do not have enough experience on the new work
 
Eugene Smith, "The Country Doctor" (1948).
 
 
Did you ever get into a situation where you opened a new milestone in your professional life (for example, you got a job for a dream), but realized that you are sorely lacking in experience, and the position requires quite concrete and successful results? Yes, for me.
 
 
Already only lazy from among all kinds of coaches and labor market experts did not blast that the share of our generation has had an unusual fate: soon the repeated change of activity in life will become the norm. The pier, the world around is changing so quickly, and the technology in ...
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Video Recorder-Ninja: Review of Neoline G-Tech X27 Dual

I never once told the respected readers of Habr about DVRs in the form of a patch on the rearview mirror. Although, in my opinion, this is an extremely successful form factor, completely undeservedly deprived of the attention of consumers. It's time to correct! In this material, we will discuss models Neoline G-Tech X27 Dual , which for ?490 rubles offers two cameras, advanced speed, an external GPS-receiver and a couple of useful brand features of Neoline.
 
 
Video Recorder-Ninja: Review of Neoline G-Tech X27 Dual  
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