Glossary

Representation of an image width to its height. A general notation is the form of X:Y where X represent the image width and Y represent the image height.While there are several video standards that are currently used in video applications, it is necessary to keep aspect ratio stable when converting ...

Color sampling, or Chroma sub-sampling, is the practice of encoding images by reducing the input resolution for the chroma information. It is used in many video encoding schemes — both analog and digital.Since the human visual system is much more sensitive to variations in brightness (knows as Luma component) than ...

A color space describes the range of colors, or gamut, that a certain device or standard can support. For instance, the range a camera can capture, a monitor can display or a standard can encode.A color space covers a subset of the entire color spectrum. Some color spaces contain more ...

Field of view usually refers to the horizontal field of view of the camera on a video conferencing system. Field of view is the viewing angle the camera will provide - the larger the viewing angle the more you will see from the room/location you are capturing with the camera. ...

Some cameras are fixed while others can move around. Those that can move around are called “PTZ cameras”, or “Pan-Tilt-Zoom Cameras”, as they can pan and tilt (move up and down and to the sides) and they can zoom in and out – mechanically. PTZ cameras usually rely on motors ...