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Digital Video and HD, 2nd Edition by Charles Poynton

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8

Raster scanning

I introduced the pixel array on page 3. This chapter outlines the basics of this process of raster scanning, whereby the samples of the pixel array are sequenced uniformly in time to form scan lines, which are in turn sequenced in time throughout each frame interval. In Chapter 13, Introduction to component SD, on page 129, I will present details on scanning in conventional “525-line” and “625-line” video. In Introduction to composite NTSC and PAL, on page 135, I will introduce the colour coding used in these systems. In Chapter 15, Introduction to HD, on page 141, I will introduce scanning in high-definition television.

Flicker, refresh rate, and frame rate

A sequence of still pictures, captured and displayed at a sufficiently ...

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