In/Out Device

[a12345]

I agree @a12345. These features interest me as much as the line calling. I don't own one, but intend to buy one when I leave the country I'm in. It said it could track RPM originally. I'm not sure if it can, or whether two cameras is enough to trace a ball accurately enough to count revolutions, but it's an interesting feature.

What would be really great as well is if they could label the balls during a rally.

e.g instead of just dots on the court you can see A1, B1, A2, B2 , A and B being the players and the numbers representing which shot during the rally, so you can analyse how each rally went and how you can improve.

And it would be even better if you could eventually track every ball e.g

Where A1 was hit, and where A1 landed. At what pace was A1 hit, at what height, and at what height did it cross the net, how much RPM did the shot have, what pace did B1 receive the shot. Maybe also create an arrow representing the flight of the ball during the rally.

Its a lot of variables, but im sure you can simply create an algorithm to calculate this, given you have the location of the ball.

This would give you all the information you need to analyse at home after the game to devise ways to improve as well as different strategies.

It would totally transform this item from a line call product to a tennis training tool and would be well worth the $200. I could see so many people buying it if it had these functions.

A few new additions in the software could really transform this product into something amazing.

 

[jim e]

A few new additions in the software could really transform this product into something amazing.

From comments on this site, it seems this device cannot do what it is advertised to do with any consistency. And you want it to do more?

 

[Flootoo]

I put a deposit down. To me the HD video and stat tracking is more interesting and worth the $200. The line calling is a bonus.

For the line calling, it doesn't have to be perfect... Just accurate enough so players on both sides of the court would agree. It also needs to just work well enough at the club level. Hawkeye needs to be good enough to track 150MPH serves.

Absolutely. Even if it's not totally accurate, the margin of error is going to impact both players, so it evens out.

 

[a12345]

From comments on this site, it seems this device cannot do what it is advertised to do with any consistency. And you want it to do more?

As I understand people are saying its missing calls and the margin of error can be 20mm.

For line calls there is a necessity for precision but for measuring where the ball bounced, you can live with 20mm accuracy.

If you hit the ball at 1.3m in height and it measured 1.32m, you can live with that. Its just a training tool.

Right now ill bet you dont know roughly what is the most common height you hit the ball at and the variance of pace and depth you hit at when taking the ball at different heights.

Some rough information on these factors would be incredibly incredibly useful.

 

[a12345]

In my view the market for a line call product = Small market for people competing.

The market for a ball tracking, data analysis, training tool = The entire Tennis community across the entire world.

They are missing a trick in not developing this aspect of the device.

$200 is nothing, for analysing your game with useful data, backed by video evidence. So many people would pay that in a heartbeat. Millions of people would buy one.

 

[Mika I]

In my view the market for a line call product = Small market for people competing.

The market for a ball tracking, data analysis, training tool = The entire Tennis community across the entire world.

They are missing a trick in not developing this aspect of the device.

$200 is nothing, for analysing your game with useful data, backed by video evidence. So many people would pay that in a heartbeat. Millions of people would buy one.

I think that a device like this (In/Out) should be combined with a sensor attached to the racquet. That would really open up possibilities for analysis. And the partial solutions are there: In/Out as far as the ball placement (and rough speed estimates) is concerned and the (discontinued) Sony Sensor, or Babolat Play, or Head Sensor or the Courtmatics solutions can provide relatively detailed data on strokes. All these combined and... at least the data would be there. But since it would be business, there are patents, and greed, and envy and whatnot and we keep getting these almost-there partial solutions.

Hoping for a better future,
m

 

[eelhc]

Most guys I play against make the best effort they can to make a good call. Do they blow it once in a while? Probably, but their intent to make good calls is good enough for me.

My thinking has always been that no cheater would ever agree to using this device unless it's universally accepted and in use (ain't going to happen anytime soon).

 

[tennisaddict03]

Have you or your opponent ever accidentally hit the device with a tennis ball? Can it survive ?

I have not but seeing the insides of the device, I highly doubt it would survive any impact. I tapped the device and the camera became loose. I barely touched the ribbon cable and it tore. The quality of its build is not promising enough to me.

 

[a12345]

In terms of ball tracking with a tracer following the ball, so that you can see the shape of your shots, adding something like this simple algorithm would work:

https://www.pyimagesearch.com/2015/09/14/ball-tracking-with-opencv/

And then you could create new visual tools with the data e.g if the ball crosses the net at a low height the line stays red, if it crosses the net at a medium height it turns orange. If it crosses the net high over the net it turns green.

If the ball is hit above 40mph it is a straight line. If the shot is above 50mph its a dashed line. If its hit above 60mph the dashes becomes more spread out.

Youll then be able to visually see how fast the ball is travelling and what shape the ball has.

e.g a green straight line instantly visualises a slow loopy shot, an orange dashed line is a fast medium height shot and so on.

 

[ElMagoElGato]

It used to have better replay feature. You could watch video with a court map and ball landing points progressively shown over it. You also could jump to play actions in the video. You didn’t have to search through idle time. That functionality disappeared when the web site was renewed. I hope it comes back someday.

The next release says the csv data include all the data including timestamp. That opens up the way to statistical analysis on your own. You can split points very easily with timestamp and then it’s just about analyzing them in any way.

If someone writes a program to do these things, he could cooperate with the developer guy. I guess it’d fit in to the third party product on the website.

 

[ElMagoElGato]

Most guys I play against make the best effort they can to make a good call. Do they blow it once in a while? Probably, but their intent to make good calls is good enough for me.

My thinking has always been that no cheater would ever agree to using this device unless it's universally accepted and in use (ain't going to happen anytime soon).

You're lucky. I can easily spot regular cheaters around me. I've never proposed to use the device against them, though. Also, there's one guy who apparently isn't able to track the ball after it comes closer than 2 yards to him. He misses shots and calls quite often. From what he says, we know that he imagines the trajectory of the ball after he loses its track. He's annoying.

I have been using the doubles functionality white a bit and is has been interesting. I have used the replay function to overturn some obviously bad calls and have found that people have a hard time admitting to making bad calls, even when obvious on the replay.

This defines yet another case of wrong calls. People are good most of the time but have moments in which they feel like to believe balls were out. I can relate to their having hard time changing what they want to believe.

 

[eelhc]

You're lucky. I can easily spot regular cheaters around me. I've never proposed to use the device against them, though. Also, there's one guy who apparently isn't able to track the ball after it comes closer than 2 yards to him. He misses shots and calls quite often. From what he says, we know that he imagines the trajectory of the ball after he loses its track. He's annoying.

This defines yet another case of wrong calls. People are good most of the time but have moments in which they feel like to believe balls were out. I can relate to their having hard time changing what they want to believe.

There are probably just as many cheaters around my parts but unless I have no choice (USTA match), I don't play them. We live in a small community. Guys who are not sportsmanlike build a reputation and generally have trouble finding matches. I will not employ a doctor or a lawyer, shop at a business, hire services, etc, etc... who are known cheaters. If I can't trust them to be honest and ethical in a recreational tennis match, how can I trust them to be honest and ethical when their livelihoods are at stake?

 

[ElMagoElGato]

There are probably just as many cheaters around my parts but unless I have no choice (USTA match), I don't play them. We live in a small community. Guys who are not sportsmanlike build a reputation and generally have trouble finding matches. I will not employ a doctor or a lawyer, shop at a business, hire services, etc, etc... who are known cheaters. If I can't trust them to be honest and ethical in a recreational tennis match, how can I trust them to be honest and ethical when their livelihoods are at stake?

Again, you’re lucky. It doesn’t go that way in my case. I join a group of people who run a practice and then random matches. Cheaters exist among them. Someone has to take one of those.

 

[TorontoTennis]

In/Out is based on the Samsung Artik 710 iOT (Internet of Things) Platform, which was closed down late last year due to poor market reception. See https://developer.artik.io/. That module practically covers the entire printed circuit board inside the device. No wonder In/Out's website will not allow you to buy one, the website has not been updated in ages (except for a 2019-05-05 software update), his Twitter feed hasn't had an update since Dec 7, 2018 (https://twitter.com/inout_tennis?lang=en) and the same for his instagram feed (https://www.instagram.com/inout_tennis/). I can't think of any reason everything to seem like it has shut down except for the fact Gregoire, the inventor, can no longer source the part which is the entire brain of his device.

I found this product totally unreliable and I guess it's now just suitable for the garbage can given the main part can't even be sourced any more by the manufacturer.

 

[joffa101]

In/Out is based on the Samsung Artik 710 iOT (Internet of Things) Platform, which was closed down late last year due to poor market reception. See https://developer.artik.io/. That module practically covers the entire printed circuit board inside the device. No wonder In/Out's website will not allow you to buy one, the website has not been updated in ages (except for a 2019-05-05 software update), his Twitter feed hasn't had an update since Dec 7, 2018 (https://twitter.com/inout_tennis?lang=en) and the same for his instagram feed (https://www.instagram.com/inout_tennis/). I can't think of any reason everything to seem like it has shut down except for the fact Gregoire, the inventor, can no longer source the part which is the entire brain of his device.

I found this product totally unreliable and I guess it's now just suitable for the garbage can given the main part can't even be sourced any more by the manufacturer.

BUT. The concept is still brilliant. A small, cheap, portable, reasonably reliable digital umpire will sell in the thousands - every club will want them.

 

[TorontoTennis]

Operative phrase 'the concept'. Anyone can have a brilliant 'concept'. What's important is to actually have a product that works. My tennis partner and I myself ended up wasting many hours with the damn thing and tech support was useless. They kept telling us we needed to install it the way we already mentioned we had. More importantly as I mentioned, the key part, which is the Samsung microcontoller board that is the brains of the thing and which also allows for the small form factor, was discontinued. Also, the warranty was crap - 6 months. The reason given was that it was a beta product. WTF? $229 down the drain. It should never have been introduced until the bugs were worked out.

Yes, it can sell in the thousands - If it actually worked and actually was still for sale! You can't use a concept. You need an actual working product that you can buy.

 

[Maximus XXIV]

Mine actually is working well now. Still some issues but is making good calls most of the time. Been injured so I have not used it at all.

The video even without the calls is also very informative.

He really should have had better service though. This is the only forum that talked about this device, he should have been on here all the time addressing his customers. I think he is an IT guy and interpersonal communication may no be his strong suit.

I would still like to see one of the big brands buy this and turn it into a robust and fast to set up consumer product. Much better than any swing sensor I have ever used.

 

[bertrevert]

better than any swing sensor I have ever used

So what stats about your performance did the In/out provide? And yes players wld want something > beta.

 

[Maximus XXIV]

None, but I got bad serve calls overturned with the I/O. The sensors I have used are pretty inaccurate, making the data worthless.

 

[R1FF]

So is the company still afloat?

Pretty crappy to hear his Instagram is stagnant and the components are discontinued.

Man, I had such high hopes for this device.

 

[ElMagoElGato]

Oh, is it true? He might have lost interest then. Is he not giving out the source code? Somebody can take care of it.

 

[Maximus XXIV]

He did respond to my tech request about the app not working on my smartwatch.

 

[TennisTim8]

Hi
Does anyone have a reliable working In Out device on this forum? I hope so one that works whenever you use it and for the duration of your tennis. I purchased two units on the back of very good early reviews. I like the concept of what it can do however my experience has been extremely disappointing! The units simply do not stay on while line calling, they randomly shut down after 20 to 40 minutes of use. The video sometimes provides files I can download sometimes they are broken and cannot be repaired. The only reliable way to get video from the unit is to use a SD Card. Recently I have been unable to receive stats from the unit or connect to the wifi in one of the units. The battery for one of my units appears to charge but I do not get the red light that I get with the secons battery when it is under charged.

The most disappointing thing though is the lack of response from the company. Shortly after buying the units it was always suggested "upgrade" now I am running version1.1. To my request for support I was told to ensure the unit was kept in a shaded area "use the umpire's chair for shade" as the software will shut down if the processor gets hot. I was playing on a indoor court! The temperature on the unit said low. My most recent suggestion from the company was to send the units back for a "fix".

I find it hard to believe I was the only one who had experienced these issues, reading other posts it seems I am not. However for the time it works it is good and if it only was reliable I would be a happy customer but my devices are an embarrassment to me to use with my tennis mates and for anyone reading my post for advice I would have to say in its present state AVOID!

 

[ElMagoElGato]

Hi
Does anyone have a reliable working In Out device on this forum? I hope so one that works whenever you use it and for the duration of your tennis. I purchased two units on the back of very good early reviews. I like the concept of what it can do however my experience has been extremely disappointing! The units simply do not stay on while line calling, they randomly shut down after 20 to 40 minutes of use. The video sometimes provides files I can download sometimes they are broken and cannot be repaired. The only reliable way to get video from the unit is to use a SD Card. Recently I have been unable to receive stats from the unit or connect to the wifi in one of the units. The battery for one of my units appears to charge but I do not get the red light that I get with the secons battery when it is under charged.

The most disappointing thing though is the lack of response from the company. Shortly after buying the units it was always suggested "upgrade" now I am running version1.1. To my request for support I was told to ensure the unit was kept in a shaded area "use the umpire's chair for shade" as the software will shut down if the processor gets hot. I was playing on a indoor court! The temperature on the unit said low. My most recent suggestion from the company was to send the units back for a "fix".

I find it hard to believe I was the only one who had experienced these issues, reading other posts it seems I am not. However for the time it works it is good and if it only was reliable I would be a happy customer but my devices are an embarrassment to me to use with my tennis mates and for anyone reading my post for advice I would have to say in its present state AVOID!

Do you have version 1.1? I thought it’s still beta3. Anyway, you’re carrying all the troubles. I just wish you a good luck.

 

[ryanholi0]

Are there folks who have these who like them and work as advertised for them?

 

[akwaba]

First, there's a new version 2.0 comming on the website ( see in/out gentil twitter...), so the man still present

Second, don't forget that it's a really really small price ( even for a beta product ). It's simple, there's no other product that try to do the same at 10X or 100 X this small price of 200$. In my opinion, you have to consider if you're ok to give 200$ for trying a product in development that try to be an hawk eye for everybody (you like the idea... or not, you think it woth the price to test... or not, no more). After reflexion, i decide to pay to see... and finally, after many tests, i think it worth 200$, but as many of you, it's not perfect at all. But this seems logical no ? with 200$ you can not expect having the same result oh a 100000$ hawk eye accuracy.

During my tests, i was very impress by the level quality as you know it's the work of only one person !! (hardware, software, box, etc etc), really better than any DIY on youtube ... It work really well for line detection at 95%, except for the ground line where it's unreliable (because bad detect of the ground line) but i have to admit 2 things : my lines are old and not really clean (in fact really bad) and i play tennis at night under articifial light. So after corresponding with gentil and trying some tips/test and photo exchange, it was the time to decide. As i still really impress by the accuracy of in/out when it see the lines, i decide to re-paint all the line in white, and as authorized by tennis law, i put the ground line at 10cm instead of 5cm for all others lines. Now the lines are REALLY visible.

I finish paint yesterday... i have to try again now .

 

[Mika I]

Ok, v2.0, claims better accuracy, but with more HW on the court. Nice, but... if your 1hr at court requires maybe 5-10 minutes of placing HW all around & setup ...well... I don't know, maybe it's for the best, maybe it's not.

rgs,
mika

 

[ElMagoElGato]

It's quite a news. Has anyone tried the line device yet? I have a net device that was sold in the first batch. I believe it's v1.0. My setup will be perfect if I add a net device v2.0 and two line devices. So, anyone?

Also, it seems he designed the chip himself. He still is very into this project.

Lastly, the latest firmware version is v1.1 just to make it clear. It isn't mentioned on the support site anymore. It only mentions the release date. But the device screen shows the version number as v1.1.

 

[Maximus XXIV]

So, he is admitting the net device will never be accurate enough?

Also screwed early adopters by claiming the hardware was good enough and then improving the hardware.

 

[ElMagoElGato]

So, he is admitting the net device will never be accurate enough?

Also screwed early adopters by claiming the hardware was good enough and then improving the hardware.

Well, that’s true. He admits it. Like I said, it was a good news to me. It makes me think of the second device.

 

[Maximus XXIV]

Dropped one of mine yesterday. Both cameras popped out of their sockets. This is not CE device, more a prototype.

 

[ryanholi0]

You gotta give this guy some credit... NO ONE else is even TRYING to make a competitive device. It's not perfect by any means but it's getting better and better. I want to try one out. I would love to be a tester for them!

 

[Maximus XXIV]

Then buy one like the rest of us.

I own 2. My experience:
Shuts down randomly frequently
Batteries go bad
Early batteries would not recharge fast enough in the device to run off an external battery
Cameras pop out if dropped on the carpet (twice now)
Videos usually get corrupted
Overturned a few bad calls on my serve
Everyone I play with hates it because it misses too many bounces and makes some bad calls
Video replay is great when it captures the bounce
Does not mount to all the posts I play on
The mount is not very secure on most of the posts I mount on so I supplement with more straps

I love the idea as a training aid more than anything. The videos are very revealing when you can get one but a couple of cheap regular cameras would work better and be cheaper.

I was a big defender of this after it first came out but I think it needs Wilson or another company to buy it out and turn it into a real CE device.

 

[ElMagoElGato]

Then buy one like the rest of us.

I own 2. My experience:
Shuts down randomly frequently
Batteries go bad
Early batteries would not recharge fast enough in the device to run off an external battery
Cameras pop out if dropped on the carpet (twice now)
Videos usually get corrupted
Overturned a few bad calls on my serve
Everyone I play with hates it because it misses too many bounces and makes some bad calls
Video replay is great when it captures the bounce
Does not mount to all the posts I play on
The mount is not very secure on most of the posts I mount on so I supplement with more straps

I love the idea as a training aid more than anything. The videos are very revealing when you can get one but a couple of cheap regular cameras would work better and be cheaper.

I was a big defender of this after it first came out but I think it needs Wilson or another company to buy it out and turn it into a real CE device.

We all know you’ve been through all those. We’re on the same boat more or less. Maybe he bumps up the product and then sells it. There still is a chance.

 

[beltsman]

So now there is a line calling device too?

I still have my original In/Out. I need to update the software/firmware/whatever. Haven't done it since the first few months.

I did really love being able to see a replay of balls in slo mo. That was pretty cool.

I'll have to dig it out, charge it, update it, and take it to the courts. A lot of effort!

 

[bertrevert]

1 NET DEVICE​	2 NET DEVICES	2 NET DEVICES 2 LINE DEVICES ​
Ideal for video recording and stats​	Recommended for tennis club​	Best accuracy for amateur match​

is what the email I received says - so amount of devices depends on what you are measuring trying to achieve.

 

[TorontoTennis]

I thought about buying a new one after my old one didn't work and the warranty ran out but based on feedback I've seen I am going back to trusting my and my partner's eyes. This thing is far from ready for prime time. Sounds like a pre-Kickstarter device that is more of a Suzy Home-maker type toy (anyone remember that oven? lol).

 

[akwaba]

Hi, I've installed the last firware version 2.0 on my blue version (first hardware) and try it with my new paint lines on my court.
At day, the result is really good, even some balls with a big doubt, finally appears on line with the zoom replay ein black and white. So it's clear for me than the quality of lines visibility is really important.
At night, the result is a bit less accurate, not at the base lines (i reapeat theses are paint at 10 cm instead of 5 cm large, still in the rules). I have only 2 bads call on more than 1 hour playing, with the opposite hall line from inout. I have to say that lights aren't really good and i can see that the black an white replay is less contrast at this time.
If, i still have good result for the base line for my next play, for me the solution is really to havea second inout, so each one can have an eye on their own side. But , before i have to improve tests

 

[RayF]

For line calls the flaw still lies wit the net devices which will continue to give you mediocre accuracy: for side line calls (20mm) and serve calls..which in my view are can be the most contentious ... (40mm on the T lines ). these numbers come from a 2 net device analysis in a previous post which I can confirm from clay court marks. You would really need 5 line devices on each side for his 2mm accuracy statement to be true on every line

 

[amalguy]

I was a big defender of this after it first came out but I think it needs Wilson or another company to buy it out and turn it into a real CE device.

I'm not sure that it will be better, I'm rather pretty sure it will be the opposite. Think about the tennis sensors for ex. Sony's one has been discontinuated after only 3 years though it's a very good product. There were battery issues that has not been adressed and let a lof of people with unusable product. Qlipp, Zepp1, Zepp2 : no more evolution after less than 2 years. And I think that it will be the same for the Head's sensor. Babolat is a bit more alive but there is no more significant improvment : last release for Babolat play is in 03/2019 after 1.5 years with nothing and with only these changes : bug fixes, improvment in the fluidity of the application, translations added and new records : Longest free play, forehand strongest and backhand strongest. And Babolat now sells I babolat pop for only 15/20 €, to dump stocks probably.
And In / Out has a lot more opportunity for improvement and evolution.

So, I prefer a single man who loves his baby and will not give up until he succeeds in his vision of his final product.
But I agree that at the same time, it is difficult for us to deal with a product not as reliable as expected. But for me, I try to deal with it and I like to be part of this story.

I ordered a V2.0 device with a line device. So I will give you my first impressions when I have tested it.
FYI, there is a quick setup for the line device : http://support.inout.tennis/InOut-Line-en.pdf

 

[chris63]

hello,
I have a V1 device and I agree with you for the most.
I have a babolat pop and didn't use it since I have the in/out .I 've seen the head sensor in a head special session and found it good (speed and shape of serve,..), but i don't have one.
My device is currently readressed for repair , and i confirm that ,improvements have to be made , so i'm very interested with your further tests.
The latests results (stats and calls) with the last firmware , were interesting enough for me.
Lets hope for the best , but i think it will need more time.

 

[R1FF]

v2 just got released.

Im eager to try it.

 

[Maximus XXIV]

I'm not sure that it will be better, I'm rather pretty sure it will be the opposite. Think about the tennis sensors for ex. Sony's one has been discontinuated after only 3 years though it's a very good product. There were battery issues that has not been adressed and let a lof of people with unusable product. Qlipp, Zepp1, Zepp2 : no more evolution after less than 2 years. And I think that it will be the same for the Head's sensor. Babolat is a bit more alive but there is no more significant improvment : last release for Babolat play is in 03/2019 after 1.5 years with nothing and with only these changes : bug fixes, improvment in the fluidity of the application, translations added and new records : Longest free play, forehand strongest and backhand strongest. And Babolat now sells I babolat pop for only 15/20 €, to dump stocks probably.
And In / Out has a lot more opportunity for improvement and evolution.

So, I prefer a single man who loves his baby and will not give up until he succeeds in his vision of his final product.
But I agree that at the same time, it is difficult for us to deal with a product not as reliable as expected. But for me, I try to deal with it and I like to be part of this story.

I ordered a V2.0 device with a line device. So I will give you my first impressions when I have tested it.
FYI, there is a quick setup for the line device : http://support.inout.tennis/InOut-Line-en.pdf

Except the hardware is crap and he is not improving it. Mostly due to poor design decisions that no CE company would make today.
Batteries allowed to be put in upside down.
Bad design on the internal battery terminals.
Cameras that pop out.
Batteries that cannot be charged at any speed when in use.
Smart watch app dead on Android.

I am sure there are others.

I wonder if the new line devices are because the chip is gone. There is no future for the net device unless he sources a new chip.

I think his biggest failing is not reading this thread. There is no talk out there about the device other than this thread. I think mostly because he did not instill confidence in the device through education and discussion in forums. I see him as a tech guy with few interpersonal skills based on my and other interactions I have heard about.

The best part of this device is the camera. Nice angles to watch a point develop and learn just how bad you are. I also like the bounce distributions. It woul be nice to filter out serves but it is nice to be able to show someone how not deeply they are hitting and how often.

 

[Demented]

I received version 2 0 this week and the device itself seems solid and up to par durability wise. My first one had a wifi problem(wouldn't turn on) and he told me to send it back and he mailed me a replacement inside of a week. The replacement works as advertised. I've only logged one session and it obviously worked better at full light than twilight/night. I only managed to get 20 minutes in before the sun hit the trees. No overheating or battery issues. I know someone with a version 1 so I'll try to compare them when I have a chance. I'll also be doing some experiments around using a solar panel to keep it running on court.

 

[Demented]

After using it for about an hour, it seems pretty good. I don't think serve mode is ready though. It has a hard time figuring out which side you should be serving too. This led to some false out calls when it had determined the wrong box to use. I believe Hawkeye and other such systems handle this via the refs control screen so that it's aware of what situation is expected. It had some expected blind spots with 1 device losing sight of the ball when you're between the camera and the landing point. I dumped the raw shot data out to a spreadsheet and I'm going to parse it and see what's going on. I do know that the serve speeds are waaaay too high. I think they need to be scaled down by 25%. We have a playsight court and a radar gun to use tomorrow to try to verify the shot data.

 

[chris63]

hello , i' m very intersted with your further tests of the v2.0 , including the speed comparisons you've talked about ,so i look forward to that.

 

[TorontoTennis]

Based on what I know about motion detection technology, this product is never going to be stable enough to call shots any better than a human playing tennis. It's just not possible. There are two many issues with properly detecting the bounding box, shadows, sunlight, the player being close to the ball. It was a total waste of the money I spent on it and the only value I got out of it was eventually taking it apart to see how it was made. The fact the developer, Gregoire Gentil, basically told me to take a hike after I could never get the thing to work in 6 months of trying totally soured me on the device. All I ever got was his arrogant remarks that I didn't know how to set it up, which I did and tried multiple times. The warranty is only 6 mos so I was SOL he said. I guess he expects his customers to take all the risk for a device which never worked in the first place.

 

[Demented]

It's definitely got issues with shadows/poor lightning and when you block the sight of the camera. I'm not sure what else you'd expect from a single POV system. I'd rather focus on the fact that the calls you need help with are generally speaking not the ones that the device has issues with. Most singles players struggle to call serves correctly and side lines that are away from the action. This device seems to handle those things well. I really don't need assistance calling the baseline. I'll tell you that after using a playsight court with 7 cameras for the last year that it will still miss a bunch of calls. It requires constant tuning and maintenance. The playsight court is setup on clay so it's pretty obvious when it misses the call.

 

[r2473]

It's definitely got issues with shadows/poor lightning and when you block the sight of the camera. I'm not sure what else you'd expect from a single POV system. I'd rather focus on the fact that the calls you need help with are generally speaking not the ones that the device has issues with. Most singles players struggle to call serves correctly and side lines that are away from the action. This device seems to handle those things well. I really don't need assistance calling the baseline. I'll tell you that after using a playsight court with 7 cameras for the last year that it will still miss a bunch of calls. It requires constant tuning and maintenance. The playsight court is setup on clay so it's pretty obvious when it misses the call.

I always turned off the line calling on PlaySight, or at least turned off the audio. It was annoying and wasn’t accurate. So I was pretty sure this device wasn’t going to work very well.

 

[chris63]

hello ,
i received a v2 also and tested it twice on serve practice.
The shell seems more solid and there are reinforcements around the cameras (less pop out i guess)
First results seems ok for calling , and for speed most of the time .
Stats seem accurate also.
More to come i hope.