3:1:1The color information compression in Sony's HDCAM high-definition digital Betacam videotape. In most subsampling, the two color signals are compressed, not the luma, and the luma is expressed as the first digit in the notation; for example, 4:2:2 and 4:2:0. HDCAM notation begins with the digit "3" because the luma is also compressed to 1440 pixels from 1920, and the chroma is one third the luma rate. See chroma subsampling.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.