How close the drone is to take a picture of a person s face

It depends on the clarity of the camera of the drone you use, if the definition of your drone is high, you can shoot clearly at a distance of 10 meters, and if the definition of your drone's camera is low, you must be close to a distance of 2 meters to shoot clearly.

Below 500 meters. The clarity of the drone can be seen clearly, and the appearance characteristics of the person can be taken clearly, but the distance is less than 500 meters, according to the pixels of the drone's camera, the clarity of the aerial photography is not the same, and the height of the current aerial advertising is generally between 500 meters and 1500 meters between the airboat and the hot air balloon.

Below 500 meters.

Below 500 meters. The clarity of the drone can be seen clearly, and the appearance characteristics of the person can be taken clearly, but the distance is less than 500 meters, according to the pixels of the drone's camera, the clarity of the aerial photography is not the same, and the height of the current aerial advertising is generally between 500 meters and 1500 meters between the airboat and the hot air balloon.

Below 500 meters.

The drone's clarity can achieve the ability to see human faces clearly. Below 500 meters, you can take a clear picture of the person's physical features. Depending on the pixels of the drone's camera, the sharpness of the aerial shot varies.

The height of the current aerial advertising is generally between 500 meters and 1500 meters for motorboats and hot air balloons; At present, the maximum altitude of drone technology is about 500m.

Below 500 meters, drone aerial photography can see people's faces clearly, but if it is an ordinary aerial photography drone, it cannot distinguish other people's facial expressions at an altitude of 500 meters, but if a military aerial photography drone can.

The clarity of the drone can be seen clearly, and the appearance characteristics of the person can be taken clearly, but the distance is less than 500 meters, according to the pixels of the drone's camera, the clarity of the aerial photography is not the same, and the height of the current aerial advertising is generally between 500 meters and 1500 meters between the airboat and the hot air balloon.

At present, there are professional and general consumer goods drones that can be bought, and now the mainstream drone brands have DJI, and the type has Royal Elf or Wu, and their telephoto lenses can shoot faces very clearly, and DJI's M300 and M30 telephoto magnification are dozens of times. You can take a picture of a person's face from 200 meters away.

Less than 50 meters can capture, judge, and recognize multiple faces. Simple and easy to use. The cost of the equipment is relatively low.

Summary. In our current life, UAVs are generally used for aerial photography, but not the higher the better, in addition to safety factors, considering the angle of photography, aerial photography also needs to control the height, when the drone flies relatively low, you can see the side of the object more clearly, and the moderate height can see the top and side, if you fly higher, you can see more of the top of the object, so you should choose the height of the flight according to the characteristics you want to highlight, relatively speaking, the higher the fly, the shorter the object looks, The details are even more unclear, and the details of the building can be seen more clearly at a height of 100 meters, but people are still relatively short compared to the building, and the height of the flight can be adjusted by kissing<>

Hello, I'm glad to answer your questions, I'm sorting out the answers for you here, it takes some time to type, wait a minute, oh <>

Dear, the drone can't see the portrait clearly at a height of 100 meters, and you can see the architectural details that you can't usually see.

In our current life, UAVs are generally used for aerial photography, but not the higher the better, in addition to safety factors, considering the angle of photography, aerial photography also needs to control the height, when the drone flies relatively low, you can see the side of the object more clearly, and the moderate height can see the top and side, if you fly higher, you can see more of the top of the object, so you should choose the height of the flight according to the characteristics you want to highlightThe details are also more unclear, and the height of 100 meters can see the details of the building more clearly, but people are still relatively short compared to the building, and the height <>of the flight can be adjusted by kissing and kissing

At what height can the drone clearly see the portrait.

Dear, hello, I'm glad to help you answer your questions, here is sorting out the answers for you, typing takes time, wait a minute, thank you.

It's all about the environment and the light, so you can try it at about 5 meters.

Can drones take pictures while in flight.

Can you see clearly when you take a picture at a height of 50 meters?

Kiss, wait, it's being sorted out for you here, it will take some time.

Some drones have the function of taking pictures in flight, such as DJI, you can refer to it.

How many times can the ** of the shoot be magnified.

Can you see clearly when you zoom in on a portrait taken at a height of 50 meters?

Regarding whether the drone can take pictures at an altitude of 50 meters, you can see clearly which bucket is related to the focal length of the lens, the telephoto lens is OK, but the drone is generally a wide-angle lens, and it is not clear to see the dust, you can consult the drone brand you want to buy.

How many times can the ** be magnified is also related to the lens and function of your drone, and the specific key banquet consults the brand you buy, it is not the same.

In recent years, the crime rate in society has been increasing year by year, especially cybercrimes, which have become more serious, and the criminal methods of criminals have become more concealed and cunning, which has increased the difficulty for the vast number of public security personnel to solve cases. At the same time, vicious incidents occur from time to time, and people's sense of security in public places is generally reduced.

At the same time, the progress of science and technology has also prompted some new technologies to be applied to public safety, such as using drones to search for specific groups of people at high altitudes, and the best comparison based on face recognition technology can speed up the identification and identification of suspects. This technology has a high recognition rate, which is of great help to security, reduces the "crowd tactics" and reduces the time cost, and improves the safety in the execution of tasks.

In today's society, the issue of information security has attracted much attention. Self-security and personal property and privacy protection have become hot topics in this era. Significant drawbacks in traditional identification technologies such as passwords, personal identification numbers (PINs), magnetic cards, and keys:

It is easy to forget, lose or be forged, and more seriously, traditional identification technology cannot truly distinguish between the owner and the impersonator.

In this context, people have turned to biometrics - the use of the body's inherent physiological or behavioral characteristics to identify or confirm identity.

What are physiological characteristics?

Physiological characteristics usually refer to the "innate and unique" physiological characteristics of human individuals, such as face, fingerprints, iris, palm prints, hand shape, retina, auricles, DNA, etc.; Behavioral traits usually refer to the habitual behavioral characteristics of individual human beings, such as signatures, voiceprints, gait, etc.

Compared with traditional identification methods, biometric identification technology has the advantages of not being easy to forget or lose, good anti-counterfeiting performance, and carrying, which can fundamentally eliminate counterfeiting and theft.

Compared with other biometric recognition technologies, face recognition has unique technical advantages in terms of practicability, which are mainly reflected in the following aspects:

Advantages of drone aerial photography face recognition.

1) It has strong concealment of operation, because it is not easy to attract people's attention and is not easy to be deceived. It is easy to be detected by people using special methods of collection, and thus more likely to be deceived by disguise.

2) Adopt non-contact collection, which is non-invasive, non-offensive, and easy to accept.

3) Concurrency, that is, multiple faces can be captured, judged and recognized in actual application scenarios.

4) Strong post-tracking ability, simple and easy to use, ordinary operators can make judgments and verifications.

5) Realize the universal and simple UAV equipment, especially the low cost of acquisition equipment.

Application scenarios. 2) Public security, justice and criminal investigation: face recognition is done at key entrances and exits and passages in some densely populated areas (such as stations, subway stations, airports, communities, etc.) to search for suspects and fugitives.