What are high definition (HD) pictures?
High definition broadcasts have image resolution that is superior to SD pictures and to the existing analog television broadcast. HDTV offers a quality improvement of up to three times the improvement in detail. Australian broadcasters are currently using four different levels of HD: • 1920 active pixels x 1080 lines @ 50Hz interlaced • 1440 active pixels x 1080 lines @ 50Hz interlaced • 1280 active pixels x 720 lines @ 50Hz progressive • 720 active pixels x 576 lines @ 50Hz progressive The benefits of HD pictures at the highest resolution are particularly noticeable on larger screen sets and when using projection equipment. HD pictures are also ghost-free and in widescreen format. When viewed on a HD capable television screen the viewer can enjoy cinema-quality viewing with Dolby Digital sound (where available with some HD programming). • More about standard definition and high definition (PDF, 48.0 kb) • More about standard definition and high definition (RTF, 656.
High Definition television broadcast pictures have image resolution which is superior to Standard Definition pictures and to the existing analog television broadcast offering a quality improvement of up to three times the improvement in detail. Australian broadcasters are using two different levels of high definition; 1440 active pixels x 1080 lines @ 50Hz interlaced 720 active pixels x 576 lines @ 50Hz progressive The benefits of High Definition pictures at the highest resolution are particularly noticeable on larger screen sets and when using projection equipment. High Definition pictures are also ghost free and in widescreen format. When viewed on an High Definition capable television screen the viewer can enjoy cinema-quality viewing with Dolby Digital sound (where available with some High Definition programming). Commercial free to air broadcasters are required to transmit a minimum of 1040 hours of native High Definition programming (including advertisements) each year. In region
HD pictures have image resolution which is superior to SD pictures and to the existing analog, with up to six times the improvement in detail. The minimum HD picture resolution is be 576 lines x 720 pixels @ 50Hz progressive (576p). This means that the benefits of HD pictures are particularly noticeable on larger screen sets and when using projection equipment. HD pictures are also ghost free and in widescreen format. When viewed on an HDTV screen the viewer can enjoy cinema-quality viewing with Dolby surround sound. In August 2002, the Government announced that it will seek to change each broadcaster’s obligation to broadcast HD programs to an annualised requirement of 1040 hours, including advertisements, and that these obligations will commence from 1 July 2003 or two years after the commencement of digital transmissions in an area. Programs transmitted in High Definition will also be simultaneously broadcast in Standard Definition. The HD integrated television receiver (HDTV) or th
High definition broadcasts have image resolution that is superior to SD and the existing analog television broadcast. Australian broadcasters are currently using four different levels of HD: • 1920 active pixels x 1080 lines @ 50Hz interlaced • 1440 active pixels x 1080 lines @ 50Hz interlaced • 1280 active pixels x 720 lines @ 50Hz progressive • 720 active pixels x 576 lines @ 50Hz progressive The benefits of HD pictures at the highest resolution are particularly noticeable on larger screen sets and when using projection equipment. HD pictures are also ghost-free and in widescreen format. When viewed on a HD capable television screen the viewer can enjoy cinema-quality viewing with Dolby Digital sound (where available with some HD programming). More information is available from www.digitalready.gov.au.
