|
Back at the beginning of DTV, ABC and Fox chose 720p because it was thought better for
sports. And back then, it was. There were three reasons: interlace artefacts per se,
the Kell factor of blurring used to reduce them, and the fact that nobody actually
transmitted 1920 resolution, the absolute max was 1440. This was implemented by
restricting the coefficients in MPEG.
At least around here, they are equally horrible.
|