Subjective Assessment for Image Quality in High-definition Television

a) that a number of administrations and organizations throughout the world are currently evaluating high-definition television (HDTV) systems, and that in many parts of the world HDTV broadcasting is likely to become the primary medium of the next century; b) that subjective assessments are a vital element in HDTV system design and selection; c) that Recommendation ITU-R BT.500 outlines general subjective assessment methods, many of the methodological details of which are also appropriate in the context of HDTV; d) that, nevertheless, it may be thought helpful to make clear the assessment methods and viewing conditions appropriate for HDTV, in the key areas currently under study, by a separate Recommendation,