CCTV Security Camera News in Da Nang Vietnam

Megapixel Security Cameras


What is a Megapixel Security Camera?

First of all, a megapixel camera is a digital camera. A megapixel camera takes the images captured by its lens and converts them into a computer code. This code can then travel over the internet or network in the same way that any other computer file is transfered.

Secondly, a megapixel camera is a high resolution digital camera. A digital camera’s resolution measures the amount of information it can capture. The higher the resolution, the sharper the picture. Resolution is measured in terms of pixels. Zoom in on any digital picture close enough, and you’ll see that it is actually constructed of tiny squares. These square are called pixels. The more pixels, the sharper the picture.

Understanding Pixels

If your computer monitor’s resolution is set to 1024 x 768, this means that the largest images it can display are 1,024 tiny squares wide by 768 tiny squares high. In other words, you can fit a maximum of 786,432 pixels on that screen.

A megapixel camera can capture approximately 1 million pixels. Not only does this result in a very sharp image, but you can also zoom in on that image without losing a tremendous amount of detail.

This detail is critical in a security camera. It means that I can zoom in on an image of an automobile and read the license plate. Or look closer at the surveillance image of a bank robber and get a good look at his tatoo.

3 Reasons to Use a Megapixel Camera

1. When traditional camera wiring is difficult.

An analog security camera requires two cables: on to carry the video signal and a second to carry power. Often these two cables will be bundled together in a single wire. A megapixel camera, by contrast, plugs into a standard network jack. As long as your network has power over ethernet (POE) capabilities, no further wiring is required. Once on the network, you can view cameras over the internet or record them to a Network Video Recorder (NVR). As an added bonus, the UPS in your data center will provide backup power. Remember, though, all this convenience may cost you dearly in bandwidth, so be sure that your network can handle the extra strain.

2. When you need to view a large area.

Megapixel cameras are ideal for viewing large areas such as parking lots or lobbies. In these applications, you are not looking for details such as license plate numbers or individual faces. Rather, the goal is to view or record the general activity in an area. One megapixel camera can often do the job of two or more analog cameras, cutting down on the cost of installing cable and hardware.

3. When you need detail.

If you need to identify a faces, read a license plates, or identify objects in a scene, a megapixel cameras with a zoom lens can provide invaluable investigative detail.