Security Camera Resolution
Are you thinking about setting up a security camera and recorder for your home or business? If so it pays to think carefully about the resolution capability of each of the devices in your system, otherwise you may end up with images that are blurry and hard to distinguish.
The resolution of a security camera is made up by the number of horizontal TV lines (TVL) that make up the picture. Each line is made of a number of pixels and the whole picture is made up by the total number of lines.
The more lines in a picture, the better the resolution of the camera, which in turn leads to a clearer picture. Or does it?
It will if the rest of the equipment in your system has a similar or better resolution. As an example, if you have a high resolution camera with 480TVL and a monitor that offers 500TVL, the image on the monitor will be clear, as the resolution of the monitor is higher.
However if you have a digital video recorder (DVR) with a resolution of 300TVL recording the camera’s output, you will find when you playback the recording, the image clarity will be considerably lower than the images displayed directly from the camera on the monitor. This is because you have taken a 480TVL resolution image and reduced the resolution to 300TVL, so even though you are displaying it on a 500TVL resolution monitor, the deterioration in the resolution when it was saved to the DVR means that the playback will always be less clear.
To ensure a clear playback when you want to identify something from your recorded footage, always use a DVR or capture card with similar or higher resolution to the camera and display it on a similar or higher resolution monitor.
Related posts:
- What Is A Security Camera Video Capture Card? It's no longer mandatory to buy a complete surveillance system...
- How to Install Home Security Cameras on a Budget When looking for a home security camera system, it is...
- Install Security Cameras - Safety Guaranteed In the present vulnerable scenario, security seems to have become...
- Security Cameras vs. Dummy Cameras By Ralph Winn At Isnare.com Ezine Articles Its true; the presence of security cameras can ward off...
- Video Conferencing: Choosing a Camera That is Best for you When you think of video conferencing you probably picture a...
Recent Comments