“Understanding
DORI Distance In CCTV : Choosing the Right Surveillance Camera for Your Needs”
Episode 15- What is and DORI and DORI distance
Introduction
When it comes to selecting a surveillance camera for your security camera system, one of the key factors to consider is its ability to perform four essential functions: Detection, Observation, Recognition, and Identification.
Understanding the DORI distance is crucial for ensuring that your camera is suitable for its intended purpose. In this article, we'll delve into the world of DORI distance and how it can help you choose the right surveillance camera for your needs, including those from respected brands like Dahua.This concept is encapsulated in the acronym "DORI,"
where D stands for Detection, O for Observation, R for Recognition, and I for
Identification.
1.
Detection
- DORI for Motion Detection:
Purpose:
Detection is all about recognizing
motion. This is the first line of defense in a security camera system. It's
essential for spotting activity in an area where there shouldn't be any.
DORI
Distance:
In the Detection category, the DORI
distance typically refers to having 25 pixels per meter on the object. This means that if an object has at least 25
pixels, it will be detected as a moving object by the camera.
Camera
Selection:
For areas where your primary concern is
detecting motion, choose a surveillance camera with a resolution that meets the 25 pixels per meter
requirement. This ensures that the camera effectively recognizes motion.
2.
Observation
- Capturing Broad Overviews:
Purpose:
Observation cameras focus on providing a
broad overview of an area. They are designed to monitor larger spaces.
DORI
Distance:
In Observation scenarios, DORI distance
is more about covering a wide field of view rather than precise pixel counts. Pixel density requirement is 65
pixels per meter.
Camera
Selection:
For observation purposes, opt for a
surveillance camera with a wide-angle lens and a resolution that suits your
specific needs. Here, the emphasis is on monitoring, rather than pixel-perfect
recognition.
3.
Recognition
- Details Matter:
Purpose:
Recognition cameras are used when
detailed images are required for recognizing characteristics, like clothing colors, or identifying
specific objects or activities.
DORI
Distance:
Recognition
cameras have a higher pixel density requirement of 125 pixels per meter.
Camera
Selection:
For recognition purposes, choose a
surveillance camera with higher resolution and advanced lens options. These
cameras are essential for applications where detailed recognition is crucial.
4.
Identification
- Pinpoint Precision:
Purpose:
Identification cameras are all about
pinpoint accuracy, such as facial
recognition or license plate identification.
DORI
Distance:
Identification cameras have the highest
pixel density requirement,
demanding 250 pixels per meter.
Camera
Selection:
For precise identification, select a
surveillance camera with the highest resolution, advanced lens options, and a
focus on capturing the finest details.
Conclusion
Understanding the DORI distance is key
to choosing the right surveillance camera for your specific needs. Whether you
require motion detection, observation, recognition, or precise identification,
the DORI framework ensures that your camera is up to the task. Surveillance
cameras from reputable brands like Dahua offer a range of options to meet these
specific needs. By considering the DORI distance and your surveillance
objectives, you can make informed decisions that enhance the effectiveness of
your security camera system.
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