From the course: Digital Media Foundations

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What is a frame and a field?

What is a frame and a field?

From the course: Digital Media Foundations

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What is a frame and a field?

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- [Instructor] If you're working in video, you're probably already pretty comfortable with the idea of a frame. It's a single, complete image, one of many displayed in a continuous series that creates the illusion of movement. A single frame of video is literally an image, little different to any photo or graphic you might have. But there's one difference, I suppose, which is that the compression systems used to store video information often include a temporal factor, a time factor. They can compare two frames or more and only store the differences, for example. Still, regardless of the way a frame is stored, it's still just an image ultimately like any other. Except in one particular instance. If your video frame is recorded, stored, and played back as a whole, single frame, it's referred to usually as progressive. There's another way to record frames of video, which allows for the appearance of smoother movement, called interlacing. The principle is quite simple. Let's imagine…

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