This article is authorized to be reproduced from the official account “Network Knife” ID:mabang_com, with some adjustments.
A gray industry chain has emerged, with one team using AI to analyze the videos and figure out the most common locations of candid cameras to remind everyone to pay attention to privacy.
A few weeks ago, a friend of mine, surnamed Y, came to me in a panic. Telling stories in jokes that happened to him.
Not long ago, when he and his girlfriend were traveling in another country, they were making love in a hotel for two days. After that, they were secretly photographed and posted on the Internet, and a friend saw them in an adult forum.
The candid camera incident that I always saw in the news before actually happened around me. It is not only sensational, but also makes us start to think: in today’s complex society, how to protect our privacy from threats in daily life?
In line with the curiosity of the world, and the spirit of being serious and not doing evil, my friends and I made an interesting plan to dig into the hotel to take candid photos, and tried to use AI technology to find those hidden cameras in the dark.
Steal the grey industry chain
The industry with the biggest traffic on the market is pornography, gambling and drugs, and pornography is the first to bear the brunt. There is a very tacky word on the Internet, traffic is king, as long as you have traffic will be able to become money, so in order to consolidate the status of traffic, natural need to constantly create content.
There are two sources of such content, selfies and candid photos. But after all, the creativity of selfie content is limited, and the cost is relatively high, there is no way to make it into assembly line engineering, so there is the disgusting candid photo.
And candid shooting, loading the camera in private occasions, can batch create content, in recent years has gradually become a particularly mature gray industry chain.
The birth of a candid video has a clear division of labor and production process, as well as accurate docking and jokes.
And the problem is getting worse as the barriers to entry fall. In addition to the huge benefits to lure more lawless people into the industry, but also with the improvement of the covert performance of filming equipment, so that people can not detect the existence of candid camera equipment, more and more seemingly safe environment, can be used by lawless people.
The “Invisible but Ubiquitous” candid camera
Most of the most widely circulated candid photos on the market are taken in private Spaces such as hotels. And they are basically recorded by pinhole cameras. With the progress of technology, the candid camera equipment is also more advanced. Take the latest candid camera scheme we found in some treasure as an example:
A standard camera is made up of about four parts: a front pinhole camera, a control wire in the middle, a power supply in the back, and a border antenna.
The smallest pinhole camera is only about 0.5*0.5 cm in size, which is less than 5 mm in length and width, and the whole camera and case are calculated, so it only needs a hole less than 3 mm in size for shooting!
In addition, mainstream camera surfers now include a WiFi module, which means you can store a tiny SIM card locally and upload it asynchronously to the cloud over WiFi. Even many devices do not need SIM cards, if the hotel WiFi speed is good, can be stored through the cloud platform, high-end candid camera devices also loaded with a microphone wake up function, only when there is sound to start recording.
The picture I illustrated is the ordinary version of power supply, which is directly powered by batteries. I dismantled a higher end one in a hotel before, which was directly connected with 220V power supply, and installed a small transformer in the middle, and then connected with batteries.
After the DC voltage is changed, the battery will be charged, and the battery will supply power to the device. That is to say, even if the power is cut off, the battery can also be standby for a certain time. Such a power supply design is called continuous recording, which is not surprising at all.
Use AI to find out where the camera device is hiding
So where are these candid “devil’s eyes” hidden?
Out of curiosity, we extracted more than 500 effectively reported pornographic websites from AiDeep anti-fraud background report data, took the whole “candid camera” channel content, and built a simple NLP thesole around the participles of “hotel”, “sex hotel”, “candid camera”, “young college students” and “young lovers”.
Then, some auxiliary marks were made through some specific picture identification (such as hotel white sheets, bathroom shower head, and fish eye camera), and finally, multiple verification was made for each video ≥1 and ≤ 5 minutes. 50 picture scenes were randomly selected, and one picture scene was extracted every 10 seconds for each video ≥5 and ≤ 1 hour or more. Position comparison, and then the picture position without displacement, included in the hotel candid photo sample library.
The main steps for the analysis of the hotel’s candid photo sample library are as follows:
Step 1: Bed body target task construction: Manually mark the bed body with different azimuth angles to facilitate training and optimization, and improve the detection speed.
Step 2: Build the SSD network model (Single Shot MultiBox Detector) : Then conduct training based on the real time target detection algorithm (SSD) of convolutional neural network to get the bed detection model.
Step 3: Calculate the pitch Angle and azimuth Angle through the image algorithm for classification: Finally, deduce the possible location of the camera through the “artificial” intelligence (that is, the old driver manually looks at the camera one by one), and finally verify with the industry leaders and friends, and finally get the camera shooting direction:
From these three angles, we reverse the physical space equipment, and then refer to the principle of convenient power supply, we get the approximate location where the equipment is often placed. The list is as follows:
Vertical Angle shooting
Smoke alarm
Hotel smoke alarm is the best hiding position, because the fire installation needs, are directly installed in the ceiling head position, and there is an uninterruptedly power supply for its long-term power supply, so it will become the preferred target for the illegal modification. Under normal circumstances, there should be an indicator light, and it is normal to have a hole, so look carefully to know whether it has been modified.
droplight
Absorb dome light and shoot the light is bright, so after the modification effect is not particularly good, will be affected by a certain, but the pendant lamp, lamp holder, hidden in the above distance closer, many criminals will turn the light as the target, main screening method, can only to look at it have any extra lines Lou in the outside, and the vertical see lamp holder darker place, Whether there are excess pores.
Directly mounted on the ceiling
Secretly shot the world nature is hard core secretly shot, above the ceiling directly drill a hole installation, is the most simple and rough secretly shot way, as long as the transformation of a power supply for its power supply, so even if it is connected to the lamp above, it will not affect the shooting effect too.
Oblique shooting
Inside the air conditioning unit
Before there are hotels have been exposed, someone in the air conditioning machine directly modified, with the perspective of God to secretly take a picture, this investigation is really difficult, because generally do not take down the air conditioning to have a look, at most can only look at the top there are no extra pores.
Socket and switch
In the drawing of the map within the visual range of the place, there are sockets and switches on the bed, are likely to become the target of evil elements demon change, modification rules are very simple, rough is to drill above the switch.
Of course, there are more terrible magic switch method, not drilling, directly with the switch hole, such as this picture:
clothes-horse
You may check many, but you never think, a clothes hanger can sell you, although the use of such a program is not many people, but it is a treasure once sold a lot of such products.
Head-up shot
Set-top box and TV
In order to meet the needs of lying on the bed to appreciate audio and video, the set top box and TV must be the perfect flat view Angle position to the bed, while watching TV convenient, equipped in the TV and set top box position candid camera has naturally become the best candid camera position.
Power adapter
The reason why the magic is called magic, is a lot of times a lot of things are demonic, you checked the TV, set top box, but you have ever thought about the power adapter?
And that’s just a common way to take photos in a hotel bedroom. In fact, it’s not just the bedroom area that can be photographed, many perverts even target the bathroom.
Modified hair dryer
It’s common to dry your hair after a shower, but have you ever thought about it? The shelf of your hair dryer, maybe watching you?
In addition to hair dryers, bathrooms will also have modified mirror headlights, and even from the light wiring installed on the ceiling, the bathroom with a large mirror, it is more difficult to investigate, because as long as you look at the mirror by reflection can obtain a large space.
Why is candid photography banned?
According to our analysis, the installation principle of candid camera is mostly placed in the best Angle of view and can watch the complete target, so in the line of sight can be directly to the area of the bed, and at the same time to solve the power supply problem, will not be blocked by physical strong light (such as spotlights), more or less there will be suspicion.
If it is really unlucky to find the camera in the process of staying in the hotel, it is suggested to directly report to the police, let the police to investigate and then negotiate with the business deal with, do not directly conflict with the business, but also to prevent the business damage evidence do not admit.
So why would someone knowingly commit something they know is illegal?
This should be from the perspective of the comparison of benefits and punishment. According to the Revelations of the old drivers in the circle, the current common modified candid camera is about 300 yuan, and the candid video in the industry does not need to be too high definition, as long as it is passionate to the bed, as long as it is more than three minutes, the minimum price will start at 10 yuan. The price of a video will rise to 150-300 yuan for a woman with a good figure or a younger female student. If you are lucky, the price of a video for a celebrity on Douyin weibo or a young artist outside the 18th line will be thousands or even tens of thousands of yuan.
Moreover, taking candid photos is not suspected of criminal offense, but only a violation of public security administration. According to Article 42 of the Law of the People’s Republic of China on Public Security Administration and Punishment:
That means, generally caught may be only 5 days of detention or a fine of less than 500 yuan, the most is 10 days of detention.
But here I have to make fun of a sentence, if this happened in South Korea, the criminal may face less than five years in prison or 10 million won (about 59,300 yuan) punishment, hope the relevant authorities consider this kind of shameless people heavy punishment?
Even if the AI analyses it, but…
Whether it is taking photos under women’s skirts on the street or in shopping malls, or taking photos of lovers’ private lives in hotels, the candid photo industry has become a very mature gray industrial chain. It is hoped that in the aspect of law, the punishment of the involved personnel will be strengthened, and at the same time, more attention will be paid to the source, so as to carry out reasonable compulsory control on these unscrupulous merchants who sell tools under the edge of the ball.
To say the least, except for reporters and police investigation, most of the pinhole cameras are used to violate the privacy of other people. So the very existence of this thing is a question worth thinking about.
In addition, although it can be captured according to the content of the video to find the location of the camera, but the current market, for anti-camera equipment and technology is not very mature, in addition to learn more experience, or to keep some eyes!
Stealing pictures is disgusting! Everyone should pay attention to protect themselves!
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