Can multiple synced angles be used to overturn a call?

[pokypine]

When a play is under review, are officials able and allowed to use multiple perfectly synced video angles to determine a call that is timing sensitive?

For example (simple frame numbers used for easy explanation), a ball carrier is crossing the goal line on a play that was ruled a touchdown on the field.

In angle A, the ball clearly crosses the line at frame number 1,234, however the view of his knees is blocked by other players.

In angle B, the view of the ball is blocked, but it is clear that the runners knee is down at frame 1,232 (a couple frames before the ball crosses the line in angle A).

In this scenario, is the technology in place to allow this level of detail during review? And if so, are officials allowed to use this to overturn a call?

[Legacy Zebra]

Yes. Most replay systems have can sync up to 4 different feeds next to each other. This method is used often.

[ElvisLives]

It’s referred to as “piecing it together.” Even if not perfectly synced, one view can show a certain sequence of events that can prove when something happened in another view.

[pokypine]

Thanks for the answers 

So more specifically, during an NFL review do the officials or those reviewing off site actually get perfectly synced feeds?

Zebra seems to be saying yes, but Elvis’ answer makes it sound less precise and more along the lines of what is shown on TV broadcasts.

I guess to ask another way, are they seeing something better and more useful than the broadcasters?

Very rarely (or maybe never) does the broadcast show 2 replay angles side by side. The commentary frequently goes something like: “well the ball clearly crosses the line here, but the question is… was he down”. At which point I’m thinking: just show us the 2 feeds side by side in sync and be done with it!

[ElvisLives]

Earlier technology did not allow ‘synced’ views, so the concept of ‘piecing it together’ was born out of necessity during those years. In one view, you might see a hand down just as the ball is breaking the plane of the goal line, but you can’t see the BC’s legs. Another view might show the knee down, but the player’s hand is still well up in the air, so you know the ball hasn’t yet broken the plane of the goal line. So, by piecing it together, you can rule no touchdown.
With synchronization these days, that becomes a lot easier, but views could still be blocked, and it may still require ‘piecing.’ As they said on “The Six Million Dollar Man,” “We have the technology.”

[AlUpstateNY]

"Football" at EVERY level is a hotly contested, physically demanding and challenging, competitive exercise between opposing efforts.  It never has, doesn't now, nor likely ever will require absolute perfection, although is often decided by the level of performance excellence and skill the contestants are able to consistently demonstrate.  It is played out on an open field, often subject to variable weather conditions and other unpredictable obstacles challenging competitors.

Adapting to, and overcoming, designed, and/or, unpredictable obstacles is a major challenge to competitors which adds, significantly, to the general appeal of the effort and nature of the competition.  Seeking excellence, through a rational pursuit of improvement is an appropriate objective, but expecting, or pursuing, absolute and consistent perfection in execution is likely a serious impediment to the long-term enjoyment, or appeal of the contest.

[bushman]

2021 season brought about a big change in replay equipment technology that I believe all power 5 conferences used. We had between 9 to 12 camera angles on our replay monitor and all we had to do was touch a certain view and it expanded on the monitor. We also had 3 different quad views we could touch and bring preset groups of cameras to the monitor that are synced. We can also pick any 2 views and blow them up on the monitor with super slow motion forward and reverse with freeze frame ability. This allows replay to look at several angles on scoring, fumble no fumble, catch or incomplete, or any other reviewable aspect of a play to try to make the correct ruling. We are of course only as good as the camera angles available. In the past we had to wait on the TV director to send us the camera views. Much better system now. This is the new DVSport system.