[FFmpeg-user] The future of video

[Mark Filipak]

On 16/07/2024 19.40, MacFH - C E Macfarlane - News wrote:
> On 17/07/2024 00:02, Mark Filipak wrote:
>>
>>    To match human persistence of vision, the refresh rate of individual
>> pels actually needs to be no greater than 10 or 12 refreshes per second.
>> Only the dots that change need be refreshed and only to the extent that
>> they change. Of course, if sub-dots are electrically dynamic instead of
>> electrically static, then TVs need to have some sort of dynamic refresh
>> that's opaque to the input. Bulk screen refresh at the input is
>> undesirable because it would flash at 10 or 12 Hz.
> 
> I'm afraid all the above para is bollocks.

You're absolutely correct. It's not really persistence of vision (as in afterimages), but everyone 
calls it "persistence of vision"--Mark.

>  You're probably not going to
> believe me, because I can no longer prove it, having now only dead links
> to give, but there is no such thing as persistence of vision.  However,
> there is very great persistence of the myth of persistence of vision,
> because the video and moving arts industry just won't let it die!  IIRC,
> it was shown to be a myth as long ago as the '70s, but still people from
> the industry wheel it out whenever it seems convenient in support of
> some specious argument or other.
> 
> The link, working in 2006 but now long since dead, even as long ago as
> 2012 when WayBack first archived it so all their 10s of archives of it
> are of 'not found' or 404 pages, was:
> 
> http://www.uca.edu/org/ccsmi/ccsmi/classicwork/Myth%20Revisited.htm
> 
> A search for "Myth Revisted" "Persistence Of Vision" finds nothing of
> relevance except possibly ...
> 
> https://dokumen.pub/electronic-media-an-introduction-10nbsped-9780070169005-0070169004-9780071288682-0071288686-9780073378862-0073378860.html
> 
> ... but the site had a down-for-maintenance message when I visited, how
> long that may last obviously I don't know.
> 
> So, no, however much I'd like to, I can't prove anything I claim, but
> it's a fact nonetheless that persistence of vision was shown to be a
> myth many decades ago.
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