Two days ago, there was a microblog topic on the hot search. In fact, since Weibo and wechat began to announce IP territories, everyone's nerves have been particularly sensitive. I feel like being ripped off my pants and surfing the Internet . However, image tracking is actually a means of reasoning, but it is used in different ways. This method is often used by the police when they pursue prisoners.
The following fugitive is Victoria nasarova. After killing a 54 year old woman, she managed to escape under the nose of the police for two years
The police finally caught the prisoner through the following self portrait.
One is the vehicle instrument panel reflected in the sunglasses, and the other is the left seat seam. Based on these two information, the police concluded that the car model the prisoner was driving was Chrysler 300**
This vehicle model information has become the key to solving the case.
In fact, many people in China are keen on this kind of [picture detective] Crime Solving game.
Two days ago, when I was wandering, I found a group of reasoning fans who had set up a case solving community .
In the fried rice community, there is a board called Internet lost . People will use their photos to work out a puzzle, and then post it on it, waiting for others to solve it. For some puzzles, the author will set some small rewards.
Fans will hold various season leagues, plate rankings and set badges on it.
For example, the title of [ God of vegetable market ] is awarded to the champion of price guessing activities.
From the Internet ▼
At present, 5900 puzzles have been solved above, and a weekly report will be published from time to time to summarize the achievements of the fans in the week.
Such as the following about the fact that the result of upgrading the system was seconds . The person who created the problem will upgrade the system offline. The person who solved the puzzle has accurate the position to 170 meters to the south.
They are not satisfied with only solving problems online. They once held a half offline online Internet maze competition on a small scale.
Players who are qualified to participate will receive a password box. The password of the password box is hidden in the following invitation letter.
After solving the puzzle of the password box, you can participate in the competition. The clues in each contestant's hands are different, and several people need to work together to complete them.
It doesn't have the flavor of embroidering lake to solve puzzles
Strolling around this big circle, I can see that there are nearly 100 kinds of auxiliary tools used by the big men for decryption.
Originally, I wanted to learn a few moves from the above, but I learned how to solve basic problems after a long afternoon of mending.
When I get a picture, I first need to collect all the information in the picture, even if it's just a small advertisement that connects the roadside with the sewer. After that, the information is sorted and classified, and tools are used to help analyze it.
*The first step of information acquisition can be targeted at landmark buildings *.
For example, there are buildings similar to the Oriental Pearl TV Tower in the picture. So congratulations, this is a 1+1=** Send points.
The second key is the text information in the picture, including street signs, street advertisements and license plates. Many can directly solve the problem.
However, if there is no information like the following picture, even the great God will be dumbfounded.
There is no information in the picture, only an aircraft exhaust.
In foreign countries, they will regularly hold quiztime challenges on Twitter or reasoning websites. Under the topic quiztime on twitter, some people update it almost every day.
The picture above shows a limited time challenge held by a man named Tilman on twitter.
There are only three pieces of information given by the author:
The plane is a Boeing 747 flying from London to Hong Kong
The photo was taken on October 30, 2019
The photographer is in the hotel
Finally, it took the great God of foreign countries more than half a month to solve this puzzle.
After going through the puzzle solving process posted by the great God on the reasoning website nixintel, I found that it involved geometry, KML file rendering, plane recognition, picture scene reconstruction and other methods**
We have just narrowed down the scope step by step and successfully locked the destination in the h+ Hotel photographed by the Berlin mitt Hotel .
However, photo detective is far more than this cool scene reasoning. This is just one of the forms of photo detective.
Long ago, people tried to tell the shooting year of some old photos, and tried to solve the time puzzle hidden in the pictures.
Temporal reasoning is different from all the previous methods To sum up, it is to find some characteristics with time attribute
When we get an old photo, we should first look at its photo material .
Such as film size and material , film marks in different periods , changes in printing process , etc.
Kodak logo evolution ▼
Let's take a look at the following photo, which has scallop shaped edges , and uses Kodak's Velox photographic paper.
Judging from the process, the shooting time is likely to be around the 1950s.
Another example is the car license plate. Not only are the license plate styles different in different regions. Tickets of different ages have different styles.
Type 02 license plate that was briefly piloted in China in 2002 ▼
Even in the pictures, the clothing version, magazine number or TV program worn by the characters are the key to solving the case.
If very 6+1 appears on the TV, the photos will be taken between 2003 and 2013.
The life history of the landmark buildings in the picture is also a reference condition. Like New York City without twin towers, it should be before 1973 or after 2001.
Big Ben under repair ▼
Determining the shooting range is not the best , with some auxiliary tools, we can even know when it was . However, this method requires two conditions: location and date.
No more nonsense. Let's find a picture to illustrate.
Let's take a look at the following picture. In the picture, there is the landmark of Jerusalem Al Aqsa compound . We'll get the shooting location.
After that, it is to determine the proportional relationship between the shadow and the object. After measurement, the length of the object is 2.33 cm and the length of the shadow is 3.53 cm.
Using our information above and through some tool websites, we can help us calculate the specific time.
Suppose this photo was taken on the day when the article was written, that is, may25,2022. Enter the location as Aksa compound, and then enter the height of the object in the last item.
After that, just adjust the time so that the shadow length is equal to 3.53, and you can calculate that the shooting time is 8:25**
Some even wrote a book about the above methods.
At present, this book sells for 27 dollars on Amazon. The method in it is quite different from that described above.
Rounding off is equivalent to saving a sum of money for the poor friends.
Family photo detective: learn how to find family tree clues in old photos and solve the mystery of family photos ▼
However, after browsing the book's messages.
I found that even after reading the system books, few people can successfully identify it.
Not really. Everyone is not good enough. It's not easy to be a photo detective.
Not only those who solve puzzles need sufficient knowledge reserves to make use of all the information. In many cases, the information of the photo itself is not enough.
Even in the Internet lost community where great gods gather, there are still 538 ancient problems and 1468 difficult problems waiting to be solved.
If you don't believe me, here's a little puzzle for you.
See if you can guess the location of this photo below.
Prompt: the location is not in China; Pay attention to the text information ▼
