[mythtv-users] OT: How is this inline done?

[Jerome Yuzyk]

On Sunday, January 17, 2016 07:23:28 PM Mike Hodson wrote:
> On Sun, Jan 17, 2016 at 6:00 PM, Jerome Yuzyk <jerome at supernet.ab.ca> wrote:
> >
> >
> > I don't even know how to ask a good Google question for this, and there
> > appear to be some broadcast veterans/nerds here, and it's quiet, so I ask.
> 
> And I'm glad you did; it allows me to take the time to regurgitate
> what I've found out over the years on this subject.
> 
> ... plenty of info to start looking ...

Thanks Mike! That explains it all and lead me to an hour or so of interesting education. They're "PVI Virtual Insertions"

    http://www.sportvision.com/hockey/virtual-advertisements
    http://www.sportvision.com/pvi-overview

(distantly) related to the FoxTrax puck-tracking system tried by the NHL in the mid-90s. Here's a good nerdly read on how they got that system going:

http://ethw.org/First-Hand:Recollections_of_the_development_of_the_FoxTrax_hockey_puck_tracking_system

Sportvision seems to have a lock on the market, from their own development (they hold a lot of patents) or acquisition. PVI was an acquisition (In-Studio) and I haven't yet tracked down who developed it or how it works. It doesn't appear to require anything of the venue - I'm pretty sure our old arena in its last year of NHL operation hasn't invested in anything to be able to offer it this year.

I suppose we have enough processing power now to make this kind of dynamic reality-bending broadcasting the norm, and make any surface a virtual reality canvas. And it's all done in the studio - which means it can be done pretty much anywhere. PVI can even be used as an alternative to the original 1st-down system. I remember reading a lengthy Sports Illustrated (?) article about the 1st-down tech and at that time it required altering cameras and yard markers, and 2 semis worth of gear. Now apparently only 1 semi is needed. :)


-- 
A little of Jerome's MythTV World: http://mythtv.bss.ab.ca
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