Technical explanation is that it does not need to know. It computes the path traveled by the ball based on actual movement...
in other words it didn't predict which bowl was bowled because sachin was playing ajmal like a amateur.
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Technical explanation is that it does not need to know. It computes the path traveled by the ball based on actual movement...
in other words it didn't predict which bowl was bowled because sachin was playing ajmal like a amateur.
Sehwag looked not out from naked eye.it looked like like pitching outside leg since it was short n Wahab isnt known to swing the ball back in.wonder everybody is quiet about that)
)
Please look at the video. I can't understand how someone still believes that Sehwag's LBW was doubtful. It can't be straighter than that. The only doubt would have been whether that ball was pitched inline or not. and everyone knows the pitching of the ball is independant of the software.
What are your thoughts on Tedulkar's LBW reversal on Ajmal's bowling by the Hawk eye.
1. It was OUT and the software made a mistake.
2. It was NOT OUT and the software made the correct decision.
Mods lets create a poll.
"I don't know how the television replays showed my delivery turning towards the leg side because I had bowled an arm ball and it went straight ...I was 110% confident when the referral was made that the batsman was out." Saeed Ajmal told AFP on the team's arrival in Lahore.
http://img132.imageshack.us/i/3srtfcorrectpath.jpg/
![]()
The red line is straightest path from Pitching to Impact and to the Stumps ... surprise, surprise its hitting leg stump.![]()
It never predicts/guesses what ball was bowled, jus follows the trajectory...
It had nothing to do with the way Sachin played Ajmal... The ball spun the amount it did before hitting Sachin's pad and HE merely extrapolates it...
Same as #1?needs to be a 3rd choice.
3. It may have been OUT, but the software's decision was consistent with other decisions it has made in the past.
Please have a look at the pictures or videos. The computer generated ball is at a different positon from the actual position of the ball. Unfortunately we do not have the hotspot to see the actual impact. so I added the frame where the ball rolls over the pads and move towards right. There is no match between the two. It may have extrapolated but the software didnt follow the trajectory as you mention. Please copy the gif and zoom it. I am sure you and the rest would be surprised.
yeah but with naked it looked not out didnt it.please be honest n say what u felt wen ball hit Sehwag?
"I don't know how the television replays showed my delivery turning towards the leg side because I had bowled an arm ball and it went straight ...I was 110% confident when the referral was made that the batsman was out." Saeed Ajmal told AFP on the team's arrival in Lahore.
http://img132.imageshack.us/i/3srtfcorrectpath.jpg/
![]()
The red line is straightest path from Pitching to Impact and to the Stumps ... surprise, surprise its hitting leg stump.![]()
pakka fraud tha, and no-one is going to convince me otherwise.
No, am not surprised the HE's trajectory is a bit different compared to one where you extrapolate the path as a straight line. Drift and spin are not straight line phenomenons...
i think your extrapolated line isnt taking into consideration the exponential path of the curve.
as something begins to turn, the rate at which it turns slightly increases as time passes. your line hasnt given the time variable a chance to progress and is thereby cancelling out the exponential effect.
to be honest, even if it was JUST clipping leg, it still cant be overturned according to the policy of irrefutable evidence showing a significant error in the umpires decision.
like i said bro we've got to just let this go, its pointless. the decision made in real time was fair.
Thats what I mean. It was not drifting. It was an armball, the straighter one. Did u see the position of the ball?. Please also check the zoomed in view in the videos where the ball is hitting the pads. This was done to check if it touched the bat or not.
Also, please check how close the bat was when it hits the pad then, while the computer generated ball hits almost in the middle of the pad. How can you explain this lateral movement? The ball cannot hit at 2 different places.
The word is LBW. which means the position of impact is the most crucial one. If it was not important then the bowlers would ask for all the bowls that are padded up while the ball's trajectory would lead it to hit the stumps.
The ball was not drifting before it pitched. However with the grip on the surface and turn, there cannot be 0 drift... Ajmal may have wanted to bowl a straight ball, but that was turning, it was not going on with the arm.
Its called point of impact my friend. With a front on view, with the naked eye, there's no telling where the ball it the pad exactly. On that call, i trust the technology to be able to tell the right spot.
not only that.. his red line is disregarding effects of gravity!! It is on an upward trajectory.. which in the picture ALONE makes it look closer to the leg stump.
Also look at where he has started the red line on the ball when it is pitched. Very conveniently to the right side of the ball... thus when you draw a line from this "right justified point" on the ball on the pitch... to the ball before it hits tendulkar's leg.. but of course it is going to hit the leg stump!
camera is also kind of technology,better than hawkeye,the point of impact is clearly changed.
Cmon, this was done taking into consideration the arm ball from ajmal and not the usual offspinner.
If we believe ajmal and the umpire this the path the ball would have taken.
No its not, with the camera frame by frame shot, there is no "clear" frame where the ball hits the pad, you can call it one way, i can call it the other... Thats the issue with a front on shot...
But how the point of impact changes to right?
"I don't know how the television replays showed my delivery turning towards the leg side because I had bowled an arm ball and it went straight ...I was 110% confident when the referral was made that the batsman was out." Saeed Ajmal told AFP on the team's arrival in Lahore.
http://img132.imageshack.us/i/3srtfcorrectpath.jpg/
![]()
The red line is straightest path from Pitching to Impact and to the Stumps ... surprise, surprise its hitting leg stump.
Another possibility is that that the ball could drifted out towards middle stump after hitting the pads
Another possibility is that that the ball could drifted out towards middle stump after hitting the pads
^ thought that was obvious. It was a fun post.![]()
The ball was not drifting before it pitched. However with the grip on the surface and turn, there cannot be 0 drift... Ajmal may have wanted to bowl a straight ball, but that was turning, it was not going on with the arm.
Its called point of impact my friend. With a front on view, with the naked eye, there's no telling where the ball it the pad exactly. On that call, i trust the technology to be able to tell the right spot.
Its called point of impact my friend. With a front on view, with the naked eye, there's no telling where the ball it the pad exactly. On that call, i trust the technology to be able to tell the right spot.
No. Simply pointing out the flaw in your straight line extrapolation.You mean to say that the software is smart enough to know how much grip each surface has?
My dear this H.E. technology is based on the statistical estimations. It is based on the principles of photogrammetry.
The 3D position of the ball is computed by triangulation using images from 4 special cameras placed at different positions. The system uses the high speed video camera and a ball tracker to record the images of the ball from different angles. Then, based on the principles of photogrametry the relative and then the absolute position of the ball is calculated.
The flight path of the ball is created using successive image frames. The future trajectory of the ball is also computed but i am not sure how we can introduce other parameters such as the surface. Each surface is unique. I have a feeling they use same average values for all the surfaces. Specially if the wicket is new like in this case.
But, only 4 positions are not good enough when the ball is bowled by a spinner. Too many factors are involved. You would need at least 6 cameras for better bundle adjustment i.e more rays of intersections. The relative results may be within tolerance. But only measured relative to each other.
Not cms, their error margin is in mms...I am not sure about the absolute position i.e the position in relation to the stumps. I dont know how they calibrate the boresight misalignments. I can challenge on this if the manufacturers say that they are providing within cms accuracy. I dont think they send the engineers to do the calibration for every match.
Not true, I think you simply assumed a different point of impact and extrapolated it using a straight line. Subjective view of where the ball struck the pad...The shift that I showed is exactly what I believed the difference between the actual and the estimation. The statistics showed the position of the bowl different than the actual positon.
Absolutely, HE has its fair share of flaws...This tecnology was created only for nice looking TV presentations. This hawkeye is full of flaws. I dont believe in these statistics. Even small statistical errors introduced could lead to bizzare results.
No wonder the Indians dont like it. I support the UDRS except for the hawk-eye. It still needs alot of improvements.
Which can be misleading... Thats all am saying...There is no hotspot or snicko to tell exactly the point of impact my dear. In this case we have to use our eyes.
True... But technology is objective and the human eye can be subjective...A humble advice. Please dont always trust the technology. You may have heard of people using the GPS navigation devices blindly. Some of them have ended up in really bizzare situations.
![]()
No. Simply pointing out the flaw in your straight line extrapolation.
Pretty accurate description, but i was not saying that HE takes the grip or surface into account.
Not cms, their error margin is in mms...
True... But technology is objective and the human eye can be subjective
@Youboy
The point you raised have been questioned many times by the commentators as well.
Esp when the Hawk eye was introduced.
But nothing much can be done and if they have adopted it as a technology to rely upon, then you ll have to rejoice at few decisions which luckily went your way and
in others.. well rely on threads like these to vent your anger and frustration![]()
Another possibility is that that the ball could drifted out towards middle stump after hitting the pads
In the meantime chill out guys and watch this clip where Tendulkar does get out due to UDRS. Compare this one with Semi final
http://www.youtube.com/watch?v=4IxNRt12UGs&feature=player_embedded
^ I don't think Kamran's keeping trigger movements are ever a good litmus test.
![]()
How do you know they are accurate within mms. Are you a sales person working for these guys? If you are, please provide the calibration reports of these systems.
Another possibility is that that the ball could drifted out towards middle stump after hitting the pads
definitely! quite possible. hawk-eye is a flawed technology.
how the hell ball turns after hitting the batsman's pads. It is suppose to be going straight, what the heck.
I'm more interested in how this is not out:
Bails broken, foot is clearly in the air.
http://i53.tinypic.com/30uwjkm.jpg
hawk-eye, speed guns etc. are right only when it goes in favor of someones' own favorite teamSehwag looked not out from naked eye.it looked like like pitching outside leg since it was short n Wahab isnt known to swing the ball back in.wonder everybody is quiet about that)
)
Im pretty sure that the bail needs to be in the air for a run out, the frame in the picture shows the bail still in contact with the stumps.... The next frame will show the bail in the air and SRT's foot on the ground...
Lets move on Ajmal Bhai
i will go as far as saying we would have won had this been given out
Why don't you guys make a petition to ICC that it was a fraud and if the semi-finals could be played again. I would have done that if it happened to some Pakistani batsman.
i will go as far as saying we would have won had this been given out
Rather you were asked to loseNo we wouldn't have. we were destined to lose
Err, you dont need to be a sales person to know that...
"In a document titled "Hawkeye Accuracy and Beleivability", the following is reported:
Hawk-Eye is able to deliver a system which meets the following performance criteria:
Pitching point accuracy under 5mm (in MCC tests it was shown to be 2.6mm)
Interception point accuracy under 5mm (in MCC tests it was shown to be 2.6mm)
Prediction of where the ball passes the stumps:
In all “normal” LBW instances under 15mm and average error of 5mm
In “extreme” LBW instances under 25mm
An “extreme” LBW is one where there is less than 40cm of travel between pitching point and interception point and the batsman is hit over 2 meters from the stumps."
i looked at the replays too and stopped it at the point where you can see trajectory from where it is estimated by hawkeye. it looks like it is predicted correctly.
the problem is this, if the umpire had given it not out, and the ball had hit by a millimetre it would have been given not out, however now the umpire has given it out and it misses by a millimetre the decision is overturned, icc clearly didnt think out the rules properly why they implimented them. or is this just a manifestation of the benefit of doubt goes to batsmen.
if i was ajmal, id be more baffled by hw pak dropped tendu 4 times. pak litteraly have themselves to blame, ajmal can be baffled abt udrs all he wants.
having read all of the posts in this thread.....
I think that the point of impact was manually 'fine tuned' so that at the point of impact it hit the pad more towards the leg side hence giving the impresision that it was turning more than it did and therfore the extrapolation which is already exponentioal would be doubly exponential.
either way.... its gone. We had more chances after this and we only have ourselves to blame.
In the order of importance..... the things to blame are....
1) dropped catches
2) shoddy ground fielding
3) Ajmal should have been bowling to Tendu and other right handers when Hafeez was bowling. Tendu didn't have a clue against Ajmal.
4) Hafeez overs should have been saved for Raina. he is a genious bowler to lefties.
5) Hafeez had a Brain fart while batting.
in terms of when to take PP - that was not to blame as its a 50 50 call whether to take or delay when you are in the position we were in. its just a call you have to make. Personally my view is that when Afridi decides its time to tee off. its absolute stupidity not to use PP.
Misbah was not to blame. he was rescuing the situation and had to remove the panic situation. he has done it a number of times before successfully and was backing himself.
Can't blame Gul. he relies on rhythm. his rhythm was knocked and couldn't get his head together. you can't blame a player for that... we should know that that's what he is. it can be fixed but its really difficult to fix that in the middle of a game.
this decision should be reversed, like they did for Pakistan vs England test game, they changed it from abandon to win for england, so first they should find out what caused this error, secondly they should minus all the runs that scored after that from tendulkar, and third they should change the match result, because this is cheating... India should not have won that game.
So according to Mr Krishnan we are a pathetic side who would have lost Semi Final in any case. Understood.
Lets come back to one fact now .pointed it out before now again,before semi final not oven one pak player is among the top 25 top run scorers of the tournament,not even one while in the list there was collins obuya,ryan ten doescathe etc.
That was how pathetic pak batting was in the tournament.And people telling if tendulkar was out they would have won easily lol.
It's because Pakistan is the only side who didn't play on the flat tracks of India until the tense knockout stage.
Upul tharanga,tilkeratne dilshan are in top 10 and they played only one match in mumbai where they scored 3 and 3 respectively,means 99 percent runs not in india.
Leave alone all that,i mean you dont even have to score that much to come in top 10 and all.But not even in top 25 with lot of associate players also in means something not good about the batting really.
Hello Mr do you have your own calculation of stats, since according to the stat listed in the following link two Pakistani players are in top 25:
Misbah at #19 and UA at # 24.
http://stats.espncricinfo.com/icc_c...most_runs_career.html?id=4857;type=tournament
And
Tharanga and Dilshan played 8 out of their 9 matches on their home ground , if your not going to score there then I don't know where you will.
EDIT: Jawardene just out scored Grandpa who is not at #20 but still 2 Pak players in top 25
Had said before the indo-pak semi final