Frame Rate
Frame Rate discription
Frame: the term frame comes from movie film. A frame is one complete picture within the reel of film. Many frames are shown every second to produce the effect of motion. One video image in a series. One still image of many sequential images that create the perceived motion in video. The piece of a video signal containing the spatial detail of one complete image; the entire set of scan lines. In an interlaced system, a frame contains two fields.
FrameRate: The frequency of discrete images. Usually measured in frames per second (fps). Film has a rate of 24 frames per second, but usually must be adjusted to match the display rate of a video system. FPS: frames per second. A measure of the rate at which pictures are shown for a motion video image. In NTSC and PAL video, each frame is made up of two interlaced fields.
Frameserving: frameserving is using one utility to decode or read a video file and after it has been decoded, sending it straight to any other video editing or encoding application.
I and P Frames: frame describing only the differences to the frame before (this is less than accurate but I think you'll get the picture that way). Say we have a keyframe with a bird before a cloudy sky. Then we can use I frames which say something like this: move the bird an inch to the left and one inch to the bottom.
Keyframe: a complete frame but heavily compressed. |
