And I told you the contact area changes, you can't accurately measure it without sensors & even then the error could well be more than 1mm - which is what some here pointed as the difference between line calls. If you think I don't understand the tech then you're wrong. My issue is with terming the lbw projection part as being more inaccurate than the (tennis) line calls or where the (cricket) ball is pitched. It's only (maybe) slightly less accurate because we're taking about a future event. The actual margin of error, in absolute terms, should be pretty similar.
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Hawkeye founder on 'umpires call' debate
- Thread starter mackembhoy
- Start date
Spark
Global Moderator
The answer remains the same. You don't need "sensors", you simply need to know the trajectory of the ball to high accuracy and this is a very, very easy problem to solve with the quality of cameras around these days.
If your answer to the problem where "the ball is pitched" or bounces is that we'll use the entire diameter of the ball & project/track where it's landing then that's the wrong answer. You still haven't answered how they're calculating that or how many cameras are used for tracking & placed where exactly? Because the ball also slides, and compresses, sometimes massively in case of tennis. This is also somewhat bad in cricket because the contact surface should be slightly elliptical in shape, so narrower than what the ball tracking shows.
Spark
Global Moderator
Fortunately the rules of cricket have been clarified in the advent of DRS to ensure that no one needs to care about this ****. The centre of the point of impact is literally all that matters rather than turning every umpire into an amateur materials physicist.
Socerer 01
International Captain
what if i want Joel Wilson to turn into a physicist though
RossTaylorsBox
Cricket Web: All-Time Legend
Uh do you think a cricket ball is going to compress as much as a tennis ball
The outer shell, limited to the leather part, compresses more than the tennis ball. But obviously there's a harder inner core so overall it won't compress or "flatten" as much.
So what's your point exactly? Because I did clarify that I have no issues with DRS, just with some lame voices who think lbw projection's less accurate than where the ball pitches.
Just so you know we're not in the MCU
Spark
Global Moderator
Where the ball pitches, in the way the rules of cricket define it for LBW purposes, is a problem that can be completely and utterly solved with cameras alone. None of this other crap you keep bringing up is at all relevant.The outer shell, limited to the leather part, compresses more than the tennis ball. But obviously there's a harder inner core so overall it won't comperes or "flatten" as much.
So what's your point exactly? Because I did clarify that I have no issues with DRS, with just some lame voices who think lbw projections is less accurate than where the ball pitches.
Just so you know we're not in the MCU
RossTaylorsBox
Cricket Web: All-Time Legend
Technically the outcome of Hawkeye is changed by measuring it.
Coronis
International Coach
TheJediBrah
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Yet it still gets it extremely wrong on rare occasions. There are issues that need addressing. Usually when there are multiple impacts close together
Spark
Global Moderator
Right but that's an entirely different debate. "Where did the ball pitch" is the easy, borderline trivial, part of the system.
shortpitched713
International Captain
Cuz most of us have an issue with authority, so **** all them umpire types, innit.
Daemon
Request Your Custom Title Now!
Still waiting for the coward
Dick Rockett
International Vice-Captain
I think umpire's call is quite an elegant solution. It baffles me that it makes so many people so angry.
Mind you, so does the faith so many have in technology.
Mind you, so does the faith so many have in technology.
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But it's not elegant, because (if he's to be believed) the founder of Hawkeye told us the umpire's call margin originally existed so umpires didn't curl up in a ball and cry in their rooms, just because the technology over-ruled their decision. If that's true, it's lame. No other sport worries about having its decisions overturned by superior technology.
He also says his technology is much more accurate than it is being presented as, although I suspect that's ego-driven.
Crawley's dismissal in the 2nd (?) Test to Bumrah wasn't elegant. It looked mud.
Dick Rockett
International Vice-Captain
Obviously it comes down to opinion, doesn't it? I like that it keeps the umpires relevant.
Athlai
Not Terrible
This is not true.