The colorbar test pattern was developed in the 1950s to test analog television systems. It revealed many things that went wrong with analog video. But even though the problems it revealed no longer exist in today's digital video world, we still use it. Yet there are many things that can go wrong with digital video that "bars and tone" won't reveal. This paper describes a new test pattern sequence that visually reveals many issues with digital video systems, including compression fidelity, colorspace mismatch, chroma downsampling, field-dominance reversal, and lip sync.
机构:
NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USANASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA
机构:
Hershey Med Ctr, Penn State Hlth, Div Breast Imaging, Dept Radiol, 30 Hope Dr,Suite 1800,EC 008, Hershey, PA 17033 USAHershey Med Ctr, Penn State Hlth, Div Breast Imaging, Dept Radiol, 30 Hope Dr,Suite 1800,EC 008, Hershey, PA 17033 USA
Sivarajah, Rebecca T.
Brown, Karen
论文数: 0引用数: 0
h-index: 0
机构:
Hershey Med Ctr, Penn State Hlth, Dept Radiol, H066,500 Univ Dr, Hershey, PA 17033 USAHershey Med Ctr, Penn State Hlth, Div Breast Imaging, Dept Radiol, 30 Hope Dr,Suite 1800,EC 008, Hershey, PA 17033 USA
Brown, Karen
Chetlen, Alison
论文数: 0引用数: 0
h-index: 0
机构:
Hershey Med Ctr, Penn State Hlth, Div Breast Imaging, Dept Radiol, 30 Hope Dr,Suite 1800,EC 008, Hershey, PA 17033 USAHershey Med Ctr, Penn State Hlth, Div Breast Imaging, Dept Radiol, 30 Hope Dr,Suite 1800,EC 008, Hershey, PA 17033 USA