How Many Resolutions Of Security Cameras Are There

12 Jan How to choose the right resolution for your security camera

"Every security projection is different" is often said in the technical world. Choosing the correct photographic camera or cameras is the nearly complex decision in whatsoever video surveillance project. There are different types of cameras that can be classified by diverse technical aspects, such as whether they are motorized or not, or whether they allow nighttime vision or not. On this occasion, we are going to focus on another fundamental attribute that direct refers to the quality of the captured image. We are going to explicate How to cull the right resolution for your security camera.

What is epitome resolution

The resolution of an epitome indicates the level of particular that can be observed in information technology. Information technology is a term typical of digital photography and video, merely it would be the technical equivalent to the grain of analog photography. It was formerly said that the higher the number of grain an image had, the less precipitous it was.

Well, that level of sharpness, quality and details that nosotros can run across in a digital prototype, is precisely what nosotros understand by resolution.

Digital images are no longer recorded on magnetic media like old video or photo films, but are instead made on computer bits. In digital, resolution is measured in pixels, specifically in columns of pixels (the width of the image) and rows of pixels (the height of the paradigm). Well, the greater the number of columns and rows of pixels, the higher resolution said image will have, the greater the level of detail it will be able to offering u.s..

When nosotros multiply that number of pixel columns past the number of pixel rows, nosotros become the unit of measurement in millions (mega) of pixels. Then, for instance, suppose we have an image 1500 pixels wide by 1200 pixels high. We would have an image with a total size, a resolution, of one,800,000 pixels, which if we become to a million, would be one.80 megapixels.

How to choose the right resolution for your security camera

How to cull the right resolution for your security photographic camera

One of the get-go questions that we would take to ask a security system installer is about the level of resolution that our surveillance cameras will have.

In old, analog cameras, the resolution of the image was measured co-ordinate to the telly lines that they could form. Thus, 480, 700 or k TVL (television lines) were spoken. The more Tv lines, the more resolution the camera would exist able to achieve. It would be the equivalent of the current megapixel measurement system.

Currently, we have many options when choosing a video surveillance camera. Only taking into account the resolution factor, it is normal to speak in terms of megapixels, since almost of the cameras that are currently mounted are digital, although they continue to coexist with an old park of increasingly reduced analog cameras.

At this indicate, nosotros take to say that it is non all megapixels, image size, in digital cameras. Nosotros besides have to consider other technical parameters and other important technological innovations, such as WDR, which is a technology that compensates for areas of more and less light to increase the sharpness of an image.

Megapixel resolution cameras are those that take at least one meg pixels. Withal, in that location are also cameras that, non reaching that level, are likewise digital because they are capable of providing a digital video output, only with a lower resolution, such as 0.3 megapixels, for example. These cameras are cheaper and work well in certain less demanding situations.

But the normal thing, in complex security projects is to place cameras with higher resolution: i megapixel, 2 MP, 3 MP, 5 MP and 8 MP. These would be the virtually mutual resolutions.

From one megapixel they are considered loftier definition, while those that reach or exceed 8 megapixels already autumn into the category of ultra high definition.

High definition and ultra high definition cameras are the about widely used because they attain a higher level of particular.

With high-definition filming, by zooming in on a face, for example, we can identify an individual perfectly, whose image has been taken from afar and who is in a crowd. This would not be possible with lower resolution cameras or older analog cameras that too did non meet the equivalent high definition standard.

Very powerful DVR equipment is required to store all these images recorded in high definition, as the images take up a lot of space due to their high quality. Images are compressed to take upward equally little space as possible on discs. Thus, we talk most QCIF, CIF, HD1, WD1 compressions, etc.

The storage capacity is in line with the quantity and quality of the images stored. A video surveillance security system relies on both technical elements: good high-resolution cameras and a robust recording medium capable of storing tens of terabytes of images every lilliputian time.

Cómo elegir una cámara de seguridad según la resolución

Benefits of loftier definition

High definition not only brought larger images. It also enabled the evolution of other technologies such as progressive scanning and dynamic noise reduction. With this, higher resolution images are achieved and also with a higher level of detail and clarity. In addition to a digital treatment that improves the prototype captured by circuitous computer post-processing systems.

With a high definition camera we tin can monitor a much larger surface area than with a conventional analog camera. This implies that we monitor more surfaces with less equipment and that the quality of the captured image is much college.

If we add other technologies to these high definition cameras, such as a fisheye lens, we have a panoramic camera that is capable of monitoring a 360-degree angle around it. If the resolution is ultra high definition (viii or twelve megapixels) nosotros can encompass spaces of 300 foursquare meters with a unmarried camera. All of this translates into lower installation and maintenance costs, as well every bit less required storage space (DVR).

You already know how to choose a security camera based on resolution. And the game that combines resolution with types of lenses and other technologies such as WDR, with which you can get a clear idea of the entire circuitous and exciting globe of possibilities that be backside a good CCTV.