If Harsha Bhogle explains me Christopher Nolan movies, I'll quietly listen to him all day.

Now time to explain Duckworth-Lewis-Stern method 🙄

No seriously, this man can read the phonebook itself and it will still sound like the best fairy tale ever!!!

This mans eyes smile along with his face. Very effective talker and most liked commentator in cricket.

Harsha is becoming the David Attenborough of cricket

If Harsha was my maths teacher in school, I wouldn't have scored 54.

Did not play a Ranji trophy game did not play International Cricket just played A Div cricket but still he talks like a knowledgeable commentator with a 100 tests experience ...Big Fan of his commentry from my childhood ❤️❤️❤️

I personally find it okay to blend technology and visible human instincts as neither are 100 percent correct

Expectations from the video: Explanation of what is umpire's call. Reality: Hasha explains how the camera works.😂

The engineering side of Harsha came on forefront this time :-D

So insightful....Harsha Bhogle..as usual impeccable...

This man is wow.....I love his language. I will listen to him all day.

Why are u not a professor at my college☹️☹️

@1:27 300 frames/second is not the resolution of the camera, it is the frame rate. The resolution of a camera is in pixels (or megapixels), for example a resolution of 4K (UHD) is 3840 pixels by 2160 pixels (a total of 8.29 megapixels).

Very well explained..love it!!

I wish Harsha Bhogle was my science teacher. Everything he explains seems to be simple 😍👌

Interesting comment by Harsha Bhogle sir "ball tracker is constructed much like snicko." Please do a video on snicko as well, my thought the snicko was sound of the edge.

Any video with Harsha Bhogle can be watched just for his SMILE.👍👍

I really don't know why is it so difficult to understand Umpire's Call. The technology is still not 100% and so we should give the benefit of doubt in favour of Umpire who has the clear view.

Apply Machine Learning. That will increase the accuracy.

This was very much needed

Very well explained...especially the decision about ball hitting the 50% below the baseline of bails....that clears lot of doubts...thank you again.

If ball reaches stumps it should be out, forget umpire's call Watch bumrah getting smith bowled at mcg, barely 25% was hitting the stumps.

Great analysis 🔥, You r legends

Wow such a lovely insight. Before clicking the video I thought there would be nothing new to know as I was aware of the 50% rule of the ball hitting the stumps and umpire call on the same. But there was so much more to the video. Also I feel if even a fraction of ball is hitting the stumps then it should be out as in cricket out is based on the Funda of bails being dislodged. And if the ball is clipping the stumps at pace it will dislodge the bails even if it's a miniscule contact.

Very well explained Harsha, Thank you

This makes me to feel like Virat should have been given notout against NZ in semis of WC19

I just feel that it's time to decrease the percentage. Make it 10 % now. If the ball hits less than 10 percent of the stumps it's umpires call. ( They say drs is 99% accurate then why does the ball needs to hit more than 50 percentage)

It would be really great of you cricbuzz if you start an dedicated 'explained' series featuring harsha for such esoteric topics.

A positive part of Umpire's Call is that the review is retained, which is nice because it doesn't punish the reviewing team for a very close call that could have gone the other way.

Very nicely explained by Mr. Harsha Bhogle

You are a cricket scientist Harsha.. enjoyed each word of your explanation in this video.. thank you for a clear explanation..

This video cleared all my doubts regarding DRS.👍

Thank you for the easy explanation 🙏

Excellent & easily explained.

Damn, this guy should have been my physics teacher

Dear Harsha Sir, DRS is an exciting addition to the game. Umpire's call is also exciting as it still keeps the old school style of umpiring in which there is so much importance to what umpire first thought the ball was doing. This is then taken up by ball tracking and its either confirmed or refuted. The harsh decisions of umpire's call are when say the ball touching the stumps is in the range of 35-49%- that's when you think its very close and still its not given as the rule says 50% of the ball should touch. So number calculated by the software which are closer to 50% in the lower range like may be 30-49% and still not given out makes the blood boil sometimes and such decisions could be critical. To mitigate this the bandwidth can be slightly modified ,say more than 35% of ball instead of 50% if touches can be out. Otherwise all LBW decisions will be referred and anything clipping/touching the stumps will be straighway out.

Thank you 🙏

One correction here: there is a difference between resolution and FPS of a camera. Resolution is how many pixels you can fit in the camera sensor. Eg. 1080p, 2k, 4k and so on. FPS stands for frames per second. Normal match cameras have or shot at 24fps. High-speed footage are shot at 300 or 1000 fps. More the fps, smoother is the slow motion footage. In my opinion, to obtain a very good ball tracker or hawk eye, the cameras need to have a good resolution (to stuff as much data as possible onto the sensor ) and also have a higher fps (to have more frames per second, through which a smoother tracking can be obtained ). Please correct me if I am wrong.

Very good explanation of DRS. I am great fan of your commentary. I like your flow of language. Now there are only few commentators who can give lively commentary like you. Tks for sharing.

respect from Pak! the two major limitations with accurate ball tracking are no of frames and learning pattern of the simulating computer. It can be made more accurate if the back tracking adapts itself during the whole game while keeping track of every ball. The behavior of the pitch, bowler's specific skills to lift/swing the ball, etc can then be included

When you take outside of the stump as a reference why cant you take outside or top outline of the bails. Its not a straight line, but reference could be a stepped line covering top of the bails.

Great analyst of the game 👏🏻

Wonderful explanation HARSHA

Thank you

Very nicely explained

I was thinking before i started watching what he's say that i already don't know, but i knew one thing today that i have don't know i.e., 50 percent of the ball has to hit the bottom of the bail. Thank you Harsha for the insight.

Thank you Hasha, i fully agree. One verdict.

Wow concept clear :)

*Great take 👍🏻*

I think it would be really helpful if in future ball% hitting stumps would be shonw side by side to ball tracker.

Harsha .. had you been a college/univ Prof, you would have had 100% attendance all life in your class. Thank you for explaining this.

Agree with you sir. Umpire's fall's days are numbered. And it doesn't have to be 50% of the ball hitting. They can fix a certain percentage based on the experimental data and the margin of error of the ball tracking system.

Amazingly explained and Harsha Bhogle is THEEEE BESTTTTTTTT!!!

Greatest Cricket knowledge of you I Love And Respect from Pakistan

Waiting for "Come on Ash"

fun fact : following was a UPSC question aked in GS 3 paper of 2016 Mains Examination. Examine the technology involved in the Decision Review System. Why its use in the cricket was debated? Do you think its use would benefit cricket? :)

While ball tracking uses known points to extrapolate and predict the target point, using the data collected during the test match would certainly improve the accuracy of this prediction. Having said that the elements of ball movement off the ground .. dip, drift, seam, swing plus the nature of pitch ..variable bounce etc ... will invariably affect the accuracy of the prediction. Add to that the images themselves that are not as clear as those generated by the visual eye .. which has got a sense of depth etc. On some pitches like the one in Motera with variable bounce and prodigious spin, the accuracy of the ball tracking predictions could be called in to question.

Well explained sir

I understood Umpire's call , so well for the first time - Thanks Harsha I am your fan.

Great video, but you are confusing resolution with capture speed aka fps!

" If ball hit the stumps...then the batsman was out...thats simple rule of LBW"- Sir Don Bradman

whoa..nice to hear harshas talk ..😇😇😇

Perfectly explained harsha 🔥🔥

Voice of cricket 🙏🙏

Love You So Much This Voice And Akash Vani Voice

Love his explanations and makes it so simple... next DLS method please cricbuzz and only let Harsha explain it lol

I know all this before watching the video because I have been watching cricket since 2010. But to express our knowledge in words specially if things are complicated as umpires call.. well only Harsha can do that.

But the solution for now is, they should include the top of the bales like they included outside of the stumps. "Are numbered" but can stay for now. Till resolution improves.

He told bowl has to hit the wicket zone(which is bottom of the bail to below) for batsman to get out in case of lbw, but when it is not a lbw and bowl hits top of the bail and it flies away they give it out. What is this now??

This is most technical harsha could be😂... Most informative video by cricbuzz👍

As much as Harsha wanted to make this prediction, I'd say the days aren't numbered for umpires call because.... its umpires we are talking about.. they are an essential part of the game. They govern the game. They have the power to kick out abusive spectators too. We need them. And for that, it is very essential that they hold power...even in the most miniscule kind of things they can. And this is why I believe even wise men wouldn't want to have the days numbered for umpire's call.

Well explained

A simple thing to understand for anyone but Harsha explains really well

It’s a mathematical model that is generated. It has confidence interval and a point estimate. Where we see the ball is a point estimate. 50% of confidence interval is below the ball and 50% above it. Considering, what proportion of confidence interval is within wicket zone, decision is made.

Make this man a professor in some iit

Impressed with the way you explained ✌️ Wished u were my Income Tax professor!!!

How does the ball tracker track the projection when a spinner is bowling and it hits on the pads of the batsmen before it starts to spin?

FPS is not a unit of resolution. It's frame rate. I wonder how the editor of the video missed that!

please explain how the calibration of DRS is done before every match

Yes the technology can get better and margin of error reduced but can it be eliminated entirely ? I presume when the equipment is installed at the stadium it gets calibrated and again maybe at the start of each innings. So at the start of the game the equipment is perfectly calibrated or as close as possible. But as the game evolves conditions change, pitch, ball and weather, the margin of error will increase because not possible to re-calibrate during a session. Some of these like temperature can be measured and adjusted for during the game based on past experience, but never perfectly. It would help if the on-screen graphics showed the margin of error for each decision. For example best/worst case or % chance is out. To the TV viewer the tracker is always presented as if perfect. Easy for the viewer to forget the margin of error. So always need some kind of allowance for error, might not be called umpires call but must be there somewhere. This is especially true for first class games, less so for one day matches, then again day/night games ?

Good explanation Harsha

What an explanation maaan ❤️❤️loved it. I wish Harsha Bhogle taught me physics in highschool

I think you're confusing frame rates with resolution

Great explanation, but It surely can’t be satisfactory that whether a batsman is given out or not out depends on which side of a very fine line the umpire originally came down on. I am in favour of using technology to arrive at correct decisions, but am very much against it being used to predict something unpredictable. A good example was when Stokes was bowled by Abbas last summer. Had it hit his pad, whether he would have been given lbw would depend on where his pad was at the time. The ball initially seemed to be going straight (out); it then swung as if it was going to miss off stump (not out); and then moved back in (probably umpire’s call). Fine to use it for checking whether it pitched in line, for no balls etc. but not for lbw predictions.

Thank you bhogle for explaining it very clearly if we reject umpire call and only stick on to the Drs what is the use of keeping umpires on the field we should respect the decision of umpires

Whenever we achieves accuracy with hitting part till that date, now onwards we should at least change the percentage of ball hitting the stumps. So instead of giving out at 50% clipping, give it even if it's hitting 30%. 70% - 30% system will be fair!!

Gabba test me pujara ko 2nd innings me umpire call pe out diya tha..jbki ball tracking me dekhne pe ball wa not hitting the stumps at all..please explain sir

There is no better narrator than Harsha bcz if you give him more time here he will start define about every pixels and dots of an image ♥️there is always that much details in his opinion

This is Harsha 'Genius' Bhogle for you. Explaining difficulties with an ease.. ✌

Excellent video

Liked the explanation but resolution is the wrong term to use. What he meant is frame rate (aka fps). Resolution is the number of pixels in each frame which is not relevant here.

The only issue is, the technology can have mixed results, specially in unfavourable conditions, eg high winds.

How precise are these ball tracking systems. Since it has these margin of errors for the same ball, will it generate the same trajectory multiple times?

Camera resolution is not the same as frames per second

Considering all the circumstances, how accurate this drs can be?

my favorite communitry sir you..👍👍

Resolution may not be the correct word for frames per second or fps to be used for camera quality.

My question is ( and is genuine so listen carefully) Why is there a need to check umpire's call at 'pitching' and 'impact' It should be either in line(>50% ball) or not (

It is not related to what ball hit the base of the bail . If the hit the top of bail , it will fall down that means it is out