What is Component Video?
A. Component video separated the picture into three component signals; two different color signals, and the “black-n-white” signal. The further separation of the color signal allows for better resolution and color saturation. Of the three, Component video is the only one with enough bandwidth to handle high-definition information, so it is mostly found on HDTV equipment and DVD players.
Before we get to the subject of what a component video cable is, let’s talk about what component video is. All conventional methods of sending an analog video signal from one device to another involve a few basic types of information. These types are the scan information (e.g., when does a line of video start and end, and when does a frame start or end?), the brightness information (how bright should this part of the image be?) and the color information (what color should this part of the image be?). Composite video, s-video, component video, and the various types of RGB video all constitute different methods, or formats, for delivering this information. At one extreme is composite video; all of the information, from the sync pulses used to deliver scan information to the luminance (brightness) and chrominance (color) portions of the signal are all delivered as one unified, “composite” signal, traveling down one wire. At another extreme is RGBHV; instead of one wire, there are five, ca
Currently, there are three main methods of transmitting television video signals, composite video, S-video, and component video. Of the three, component video provides the highest quality video image. Component video is made up of three signals, the luminance signal, the blue signal and the red signal. The luminance or Y signal contains brightness and black and white information. The blue or Pb signal contains information about how much blue is in image. The red or Pr signal contains information about how much red is in an image. Green is not transmitted separately. Instead, the receiving device calculates the amount of green based on the information it receives about the brightness of the image and the amount of blue and red. Component video signals can have resolutions of 1080i or 720p, which are both high definition formats, 480p, which is the progressive scan format, or 480i, which is the standard video format. Component video requires three connectors, one for each of the componen
Televisions display all their beautiful images by only using three colors, Red, Blue and Green. Your eyes can only see Red, Blue and Green, so this works very nicely. All the other colors we see are variations in the ratio of how much Red, Blue and Green are mixed into one image. Component video uses three cables to carry, not the actual levels of Red, Blue and Green (RGB) , but an accurate representation of those levels in the original video signal. These cables and their corresponding connections on the back of HDTV sets, DVDS, and HD satellite receivers are called: Y, B-Y, and R-Y. Y: Contains the “Luminance Signal”. The luminance signal represents the levels of black and white with in the video signal. B-Y: Contains the difference of how much blue there is in the video signal relative to the luminance signal. R-Y: Contains the difference of how much red there is in the video signal relative to the luminance signal. The B-Y and R-Y are mathematically derivatives of the whole RGB sig
