Investigation of High Definition Television for Application to Teleconferencing

摘要

In recent years, there has been considerable activity in the development oftechnology and standards related to High Definition Television (HDTV). According to Advanced Television Systems Committee (ASTC), 'the term HDTV refers to television systems with approximately twice the horizontal and vertical emitted resolution of standard NTSC. HDTV systems are wide aspect ratio systems and may include improvements from IDTV (Improved Definition Television) and EDTV (Extended Definition Television'. The purpose of this task was to investigate HDTV to determine its potential applicability to teleconferencing within the Government community. Work on this project was divided into four tasks: (1) HDTV standards activity, (2) communication considerations, (3) TV compression technology, and (4) system analysis.... High Definition Television (HDTV), Video teleconferencing.