How Should You Select the Best CCTV Camera in 2022?
Technologies are rapidly evolving, and manufacturers of
video surveillance equipment are providing increasingly efficient and
cost-effective solutions.
What technologies will revolutionize video surveillance in 2022?
The big stories these days are about artificial intelligence
and night vision.
Remote viewing and real-time smartphone alerts are also
significant advancements in security management. They give you the ability to
take personal responsibility for your own safety. Who better to protect your
home, office, or business than you?
Artificial intelligence (AI) in CCTV
The major advancement that some surveillance camera
manufacturers offer with increasingly affordable product lines is artificial
intelligence. This technology, however, is difficult to implement, and only a
few major international manufacturers, such as AVTech, Hikvision and Dahua, are
capable of providing truly accomplished and functional solutions.
Cameras with artificial intelligence enable real-time
detection and alerts on humans, vehicles, and fire detection, among other
things. They also enable strategic analysis, such as people counting cameras.
Color Night Vision Camera
Previously, surveillance cameras could only see in black and
white at night; now, they can also see in color. Seeing in color at night is
especially useful for obtaining critical details such as the color of a car,
the color of a person's jacket, and so on... This information can be used much
more effectively by law enforcement and security services to conduct quick and
accurate identification.
There are numerous models of surveillance cameras that
include AI, color night vision, or both.
What is the most effective surveillance camera in 2022?
This is a question that many people ask themselves
incorrectly. There is no best surveillance camera, but depending on your needs,
you can find the best camera. There are several criteria to consider when
selecting the right surveillance camera: what should I protect myself from?
What is my CCTV budget? What places do I want to safeguard, a home, a business,
an office, a gym, and so on?
Let's look at
technology.
Technologies have advanced significantly, and it is now
possible to outfit yourself with a highly reliable and high-performance video
surveillance system, with products to suit all budgets.
Artificial
intelligence surveillance camera
Many surveillance cameras include artificial intelligence,
and its utility is well established. The main benefits of a surveillance camera
are accurate detection and real-time alerting. It allows you to be notified
when something happens in your camera's visual field. It is critical to
initiate an action in order to prevent a burglary, theft, ransacking,
aggression, and so on.
In reference to more traditional detection technologies.
Until recently, cameras had relatively "basic" detection systems that
relied primarily on pixel changes at the camera sensor. This allowed the camera
to detect everything that passed through its visual field. However, it resulted
in a large number of false positives. A false positive is a detection that is
unwarranted. A false positive was caused by, for example, leaves blowing in the
wind, an animal passing in front of the camera, or a sudden change in
brightness following the passage of a cloud in front of the sun. As a result,
the detections were unreliable and difficult to use.
Then came more advanced detections, such as those based on
the crossing of a virtual line or intrusion detection. When a user draws a line
on the camera image, an alert is triggered when it is crossed. Similarly, it
can draw an area that triggers an alert when an intrusion in the latter is
detected by the camera. These technologies have significantly reduced false
positives, but they have not been limited sufficiently for optimal day-to-day
use.
Artificial intelligence is the great revolution that, for
the first time, makes security cameras truly effective on a daily basis by only
sending justified alerts to your smartphone or tablet.
Depending on the manufacturer, artificial intelligence
integrated into surveillance cameras goes by a variety of names. This
technology is known as AcuSense at Hikvision. Hikvision cameras are currently
using AcuSense technology in version 2.0. It allows for a false positive rate
of less than 2%.
What is Hikvision's AcuSense technology and how does it work?
The camera's algorithm allows the artificial intelligence to
focus solely on humans, vehicles, or both. As a result, you will receive
instant, dependable, and verifiable detections. AcuSense technology enables
home, business, or business owners to respond to security incidents in real
time. Security is then taken to the next level, allowing for quicker responses
before losses or damage occurs.
Surveillance camera with color vision at night
Until now, cameras in the dark could only provide a
black-and-white image using infrared lighting. In the context of 24-hour
security, this black and white vision provides a lot of very interesting
information. However, some information may be lost when viewing in black and
white. Color vision at night transforms safety. This enables us to know, for
example, that the car that caused an accident was red, or that the intruder was
dressed in yellow pants and a blue jacket. Color, when combined with real-time
alerts, provides a broader range of essential information and increases responsiveness
to challenge an individual or deal with a threat.
Hikvision's ColorVu technology is the brand name for this
technology. ColorVu technology serves as the system's eyes. When combined with
the AcuSense AI technology, which serves as the brain, you get results in terms
of detection and alert precision that have never been seen before.
To implement this technology, manufacturers have had to rely
on the development of entirely new sensors that incorporate a lens with a large
F1.0 aperture capable of capturing significantly more light in order to obtain
brighter images with more balanced exposure. The ColorVu camera can film in
color at all times due to its high sensitivity in low-light environments.
To help it maintain color vision at night, the ColorVu
security camera can activate fill lighting with warm visible (non-infrared)
light. A ColorVu camera has a sensitivity of 0.0005 Lux. A full moon night, on
the other hand, illuminates at 0.5 Lux.
How do I pick the best surveillance camera for my needs?
After deciding on a technology such as a traditional camera,
AcuSense, or ColorVu, the location of the camera must be determined, whether it
will be installed indoors or outdoors.
Indoor surveillance camera 2022
To equip you with an interior security camera, it is often
recommended to go with dome cameras, primarily for aesthetic and discretion
reasons. These cameras should ideally be installed upside down under the
ceiling. Otherwise, a less aesthetically pleasing support will be required. In
the case of vertical installation against a wall, a mini tube camera is
preferable. There are more discrete mini dome cameras available, such as the
DS-2CD2546G2-IS and DS-2CD2543G2-IS models. Both cameras feature AcuSense
technology as well as a built-in microphone.
There are also cube cameras, such as the DS-2CD2443G0-IW,
that can be placed vertically against a wall, under a ceiling, or even on a
piece of furniture due to their foot mounted on a ball joint.
The EZVIZ brand provides a wide range of WiFi indoor
surveillance cameras with advanced features like automatic target tracking.
Outdoor surveillance
camera 2022
The selection of outdoor cameras is more critical. Let's
stick with smart cameras that use AcuSense or ColorVu technology, which are the
new 2022 trend.
Certain models will be more appropriate depending on the type of property to be monitored (business, office, home, etc.). When you are not a specialist, it is best to seek advice from video surveillance experts.
Outdoor cameras are classified into three types.
- - Surveillance camera with fixed focus
- - Surveillance camera with varifocal lenses
- - PTZ security camera
The type of camera and lens must then be selected.
What is a Fixed Focus Camera?
Fixed-focus cameras have a field of view that ranges from
100° to 180°. Pop-up cameras are what they're called. That is, they have a wide
field of vision, allowing you to see the entirety of a scene without a high
level of detail if the scene being filmed is far away from the camera. These
are the most popular cameras because they meet a wide range of requirements.
What is a Varifocal lens camera?
Optical zoom is available on varifocal cameras. This allows
you to precisely customize the area to be filmed by zooming in and out.
This can be very useful, for example, if you want to film
the entrance to a parking lot in order to clearly identify a license plate.
Varifocal cameras can be used in conjunction with fixed lens cameras. To return
to the car park example, it will be interesting to pair the varifocal camera
with a camera with a wide field of view in order to see everything that is
going on in the parking lot. The fixed-focus camera will show that at 2:15
p.m., the blue car collided with the red car and exited the parking lot.
However, it will not have enough resolution to see the license plate. The
images from the varifocal camera will then suffice to identify the vehicle
plate at 2:15 p.m.
What is a PTZ Camera?
A PTZ camera, also known as a rotating camera, can rotate
from right to left, up and down, and has a powerful optical zoom that allows it
to see fine details at a great distance. PTZ cameras, for the most part, have
advanced features like auto-tracking or smart tracking. This feature enables
them to track a target without the need for human intervention. They can also
be programmed to go around and scan the area to be monitored on a regular
basis.
To complete the selection of its camera, it is necessary to
consider night vision.
What is the best night vision for a surveillance camera?
The surveillance cameras can see daylight all the way to the
horizon. They, like our eyes, can see for miles if there are no obstacles. On
the other hand, the further the scene to be filmed is from the camera, the less
precise and usable the details will be.
The cameras' vision is much more limited at night. This
vision is influenced by the power of the camera's LEDs, whether it is using
ColorVu technology or black and white vision (infrared).
Night vision ranges from 10 to 30 meters for indoor cameras.
Night vision ranges from 20 to 500 meters for the most powerful outdoor
cameras. The most powerful non-rotating cameras have a maximum night vision
range of 80 meters. Beyond that, if you want to see the night at 100 meters,
200 meters, and so on, you'll need to upgrade to a PTZ camera, which is the
only type of camera capable of providing night vision over such distances.
Finally, you will need to select the camera's resolution.
The majority of cameras have resolutions ranging from 2MP (1080p) to 8MP (4K).
Which resolution should I use for my security camera?
The resolution is determined by your requirements as well as
the distance between the camera and the subject to be filmed. A 2MP (full HD)
camera will suffice if you simply want to see what's going on in your garden
but don't need to identify an individual (to clear up any doubts). indicated.
If you need a camera that can recognize a person, license plate, or other
object, you'll need to go with a higher resolution.
The most common resolutions for surveillance cameras are 2MP
(full HD 1080p), 4 or 5MP, and 8MP (4K). The DORI principle can assist you in
determining the best camera for your needs.
What exactly is the DORI principle?
DORI is a critical principle in video surveillance for selecting
the right camera model. The DORI distance (Detect, Observe, Recognize, Identify) indicates the camera's ability to distinguish between people and
objects in its field of view. It is calculated using the camera sensor
specifications and the criteria specified in EN 62676-4: 2015.
Detection (25 pixels per meter): The distance at which a
person in the camera image can be detected. This will only detect a human form
but will not provide any specifics.
Observation (63 pixels per meter): The Observation level
provides distinguishing details about an individual, such as distinctive
clothing, while also allowing activity in the surrounding area to be seen.
Recognize (125 pixels per meter): The level of recognition
allows for a high degree of certainty in determining whether an individual in
relation to his overall characteristics. This allows for recognition but not
identification.
Identify (250 pixels per meter): The identify level provides
a detailed description of a person's characteristics such as clothing, facial
features, facial expressions, and other personal characteristics.
The DORI system is inextricably linked to the camera's
resolution. It is also calculated for images taken during the day. The distance
is reduced by 30% to 40% at night in black and white. This heightens interest
in the ColorVu technology, which allows for the preservation of a color image
at night.
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