Rec. 601

(redirected from BT.601)

Rec. 601

An ITU-R standard for component digital video (YCbCr). It was designed to provide a common digital standard for conversion from the three analog video/TV systems (NTSC, PAL/SECAM). Rec. 601 (ITU-R BT.601) also enables easy conversion back to any of the three analog signals for distribution.

The choice of a luma sampling frequency of 13.5 MHz and a chroma frequency of 6.75MHz (4:2:2) yields 720 samples of active data per line for both NTSC and PAL/SECAM. For ITU-R high-definition specifications, see ITU-R HD standards. See YUV, YCbCr and 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.
References in periodicals archive ?
In O and [S.sub.2], the conversion is carried out according to ITU-R recommendation BT.601 [10].
Indeed, the setting of the weighting coefficients according to the ITU-R recommendation BT.601 is just one of an infinite number of possible settings.
While the grape detectors [S.sub.1] employ the standard conversion according to the ITU-R recommendation BT.601, the robust detectors R are based on the generalized conversion (2).
[10] ITU-R Recommendation BT.601. Studio encoding parameters of digital television for standard 4:3 and wide screen 16:9 aspect ratios, March 2011.
The SmartCODEC, which was developed by Fujitsu Laboratories and is used in the BT.601 Transport Over IEEE-1394(3) standard, can compress and decompress high resolution video in 2 to 3 milliseconds (2-3ms) without any perceptible annoying time lag or out of sync contents, which can be a problem when watching the same contents on the front and rear monitors.
(3) BT.601 Transport Over IEEE-1394: A transport protocol for sending BT.601 video streams (YUV, RGB, etc.) over 1394 Automotive, promulgated by the 1394 Trade Association.
The D1 Desktop, features fully digital SMPTE 259M / ITU-R BT.601 10-bit SDI input and output; real-time capture and playback (no video compression required); built-in safe area generator; video genlock to allow the D1 Desktop to be locked to station reference, and is compliant with both 525 (NTSC) or 625 (PAL) television systems.