But, aren't these data based on home viewing environment, which by definition are less dynamic and with less distractions than video in mobile and portable environments? It seems to me to be a stretch to apply criteria tested only in tranquil environments to dynamic, chaotic environments. John Willkie -----Mensaje original----- De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En nombre de Manfredi, Albert E Enviado el: Sunday, December 21, 2008 4:33 PM Para: opendtv@xxxxxxxxxxxxx Asunto: [opendtv] Re: Public M/H information Craig Birkmaier wrote: > That being said, Apple is selling 360P via the iTunes store... That's close to right, if you use the 1.6 arcmin criterion for visual acuity. The closest viewing distance should be 6 picture heights, at 360p. People expect pretty pictures, it's really that simple. It might not be all they expect, but nevertheless... I'm intrigued by Mark Schubin's quote of the NHK research findings. I'll bet the fact that we can discern differences of much less than even 1 arcmin has to do with our eyes rescanning the image from slightly different viewing angles. Whereas the 1 or 1.6 arcmin acuity assumes looking straight at the image without moving the eyes at all. Some effect like that. Bert ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line. ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.