Analysis of information sources in references of the Wikipedia article "Interlaced video" in English language version.
It has been shown that the coding efficiency of 1080p/50 is very similar (simulations) or even better (subjective tests) than 1080i/25 despite the fact that twice the number of pixels have to be coded. This is due to the higher compression efficiency and better motion tracking of progressively scanned video signals compared to interlaced scanning.