New Learning Center Pages Explain how IP Cameras Work
Have you ever wondered how your surveillance camera actually works? It's a complicated system of turning light into electrical impulses, but our new Learning Center pages can help you understand how cameras work.
The first step in creating a video is controlling the amount of light that enters the camera lens. This process is controlled by the camera iris. The larger the opening the iris creates, the more light is allowed in; a smaller opening allows in less light. Too much light can wash out your images, and too little light creates images that are too dark.
After the light has entered the camera through the iris, it hits the image sensor where the light is turned into the electrical impulses that actually make up the video. The image sensor is made up of dozens of pixels, each one recording how much light it's exposed to. The light/dark sections of each pixel come together to form the video you see.
Once the video is recorded, it has to be compressed. Video compression is the process of using a codec to go through the video file to reduce or eliminate unnecessary parts of the file, so the final video is smaller. This compressed file allows you to store more videos on your hard drive, send video files more easily over your network, and view them remotely from your computer, smart phone, or tablet.