A Studio Compression Format for HDTV Applications

This paper presents a video compression format for HDTV video to be used in studio applications. Digital HDTV signals need to be compressed in order to be routed or stored within a studio. The bitrates targeted support the use of viable networking technologies such as SMPTE-259 and OC-3. The requirements of a studio are considered in the choice of the format. These requirements include excellent picture quality, good quality even in the presence of cascaded coding, adequate sampling of the chroma signal, support for studio operations such as chroma-keying, and frame or field accurate editing. We will also examine techniques for switching between highly compressed video signals, a requirement in the studio, both for production purposes and for transitioning between programs or commercials.

Published

1996-10

Content type

Original Research

Keywords

HDTV, studio, compression, splicing, switching, editing, MPEG, 422 profile, cascaded, multi-generation, ATV

DOI

10.5594/M00105

ISBN

978-1-61482-925-6