Commercial CCTV cameras are reliable technology when it comes to the security of your business location. But camera resolution can make a big difference in monitoring business premises.
How is aspect ratio related to commercial CCTV resolution?
Given that commercial security camera and screen resolution measurements are expressed using width x height in pixels, aspect ratio refers to the relationship between those two measurements of a particular image. When counting the number of pixels in the width and the number of pixels in the height of a 4MP camera, you get an aspect ratio of 16:9 for every nine pixels in height or 16 pixels in width. This is the most common aspect ratio today, it is the most common ratio for large screen HD television displays
See below the security camera aspect ratio list:
1MP (720p) – 16:9
1.3MP – 5:4
2MP (1080p) – 16:9
3MP – 4:3
4MP (1440p) – 16:9
5MP (1920p) – 4:3
4K (8MP) (2160p) – 16:9
If you want to best CCTV camera then Dahua 8MP Camera is best for you. buy now at a low price
How does resolution relate to commercial security cameras?
The relationship between resolution and security cameras is much like the relationship between resolution and television sets. 15 years ago, security cameras and television sets were both analog devices. Their resolutions were not measured the way we would measure them today and the resolutions were of poor quality compared to today’s resolutions. Prior to the year 2000, horizontal lines of resolution—called “TVL”—short for “TV lines”—were the standard method of measurement for analog video. It’s a whole different world for displays and security cameras.
In today’s technology if you access video from a 4K (8MP) security camera, which has a resolution of 3840 x 2160, a total of over eight million pixels, it allows you to zoom in on the image and capture levels of detail beyond your ability. allows for capture. , Will allow to increase up to. With low resolution camera. It’s not that you can’t “zoom and improve” images captured with 1080p, 4MP, or other cameras, it’s just that they’ll get pixelated and distorted very quickly.
This is because they didn’t capture the same number of pixels per image or they didn’t capture the same level of detail. Zooming in on an image can be very useful when capturing large areas or when you need to see a level of detail that lower resolution cameras can’t provide.
How does the resolution of a CCTV camera affect the storage space?
As the resolution of your commercial CCTV security cameras increases, so will the amount of hard drive space required to store the footage. As the resolution increases, the duration of the video that can be saved on the same amount of hard drive space will decrease.
A 8MP image takes up about twice as much storage space as a 2MP image when stored using the same video compression, while a 4K (8MP) image takes up twice as much storage space as a 8MP image. 1080p uses half the space of 8MP.
In simple terms, higher-resolution commercial CCTV security cameras have more pixels for each image they capture, images with more pixels take up more storage space on your hard drive. Should you find you need to store more video, perhaps you decide you need to retain months’ worth of footage, you’ll just need to add more hard drives to your Network Video Recorder (NVR).