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Club tracking camera

CTS Color Setup Instructions


 

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System includes electronically controlled (trigger & digital delay) Xenon flash(s), halogen lamp, zoom lens(es), HD color camera(s), trigger mat and 5 amp power supplies

3. Position both the CTS unit and halogen lamp so that they point directly down onto the trigger mat.


Important ! --- Camera function assignments (CX systems)

In the control panel cam 1 is the ball launch angle camera, cam 2 is the ball path camera, cams 3 & 4 the club tracking cameras and cams 5 & 6 the ball spin cams.

Check that all cameras connected to the PC and go the "Cameras" window of the Control Panel


Testing the CTS unit

The above images show club face angle detection without having to apply white strips to the leading edge of irons.

Unfortunately this edge detection cannot always be guaranteed so we recommend applying the supplied white strips to all clubs

White strips on clubs

Note that most times it will be necessary to apply a white strip or tracking dots to the lower leading edge of irons and the top side of woods

1. Assigning the CTS camera(s) in the Control Panel

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An optional extra projector mount is also available for the CTS.

Once this has been achieved, check that the focus is good. You should have a clear in focus image of the ball.

Use the lower ring of the lens to adjust the focus. Note that there are small grub screws that on the rings that may have to be loosened first.

Ensure that the top aperture ring is in the fully open position. i.e. on the opposite side of the "C" (closed) position.

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Blue scan zone borders

The 4 blue scan zone borders (left, right, top and bottom) should be set so that the system only scans

for clubs in the limited area where the club is likely to be at impact to the ball.

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To do this, place a ball on the mat and click the "Soft Trigger" button to grab a new frame.

Manually move the scan zone borders so that the ball is exposed within the scan zone as in the above image

Then just click the "Set ball pos" button.

Camera Shutter speed and Gain

Shutter speed should always be quite fast. It's default value is 80 micro seconds.

Gain may have to be adjusted to get a balanced image that is not too dark and not too bright.

Gain values will be in the 10 to 20 db range

Iron / Wood pixel counts

The system detects the club type (iron, wood or driver) by counting certain pixels in the image of the club.

Irons will have a smaller value than woods or drivers. Default values are up to 900 for irons, up to 1100 for woods and over 1100 for drivers.

The system uses this information to vary the measured club face length.

CTS Pro / CX4cc

Camera alignment

The CTS Pro (as also used in the CX4cc) features two cameras that have to aligned so that the images of the club appear in the same plane.

CTS Pro / CX4cc

Scaling and club speed

Frame time delay

 

 

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Click above image to see club image examples

Single Camera Club tracking without tracking dots

Note that we cannot guarantee that club face angle can be accurately detected without using either tracking dots of white strips on the clubs

Under ideal photographic conditions, the CTS color club tracking software can detect face angle of drivers/woods that don't have bright metallic faces or a white stripe on them. (Image left)

In addition, the club type (wood or iron) can usually be detected and whether or not the club has a white stripe on it.

 

The CTS software has now been modified to detect accurate club data with clubs like the M1 driver from Taylor Made that feature a dark club face and a white top.

The new CTS software mod scans the club image to determine the color of it's top and accordingly changes the face detection to this color.

Face angle detection is then the transition points to this color instead of the face itself.

The new method also works with pink clubs.

Reverse IBS

CTS - Using a white strip on woods and drivers

When using a white stripe on drivers and woods and the face is exposed to the camera - as in the far left image showing the club striking the ball on the up swing - it can appear very bright.

This bright face can fool the software into assuming it is a white stripe so to counter this issue we are now scanning from right to left in order to detect the stripe from behind.

When using a white club though this method cannot be used so we have added white club detection so if the club is white then we scan from left to right

The above images show what can happen when using a bulged face wood or driver club with and without a white stripe

The software couldn't detect the exact face angle of the wood without the stripe (image left) but could easily with the white stripe (image right)

Here a more extreme example with an out of focus wood club image

The club face angle is way off with the club without the stripe (image left) but - once again - could easily detect it with the white stripe (image right)

All CTS systems come complete with a set of pre-cut white self-adhesive strips for your woods and drivers

You can also make your own strips using sticky back photo paper

Sticky back photo paper is available at most office stores for $8,99 for a 25 pack (enough for hundreds of clubs)

Just cut to size and apply. Easy removable.

If your driver and / or woods already have a white stripe on them then you won't need to use the strips.

What to expect when not using white stripes or tracking dots on woods and drivers

  • Note: the above images are darkened to show the face angle cross hairs more clearly
  • We always recommend applying a small white stripe (supplied) to the top of clubs with a bulged face
  • (i.e. woods and drivers) to increase the face angle accuracy, however,
  • as this may not always be practical - ie when the system is being used in a commercial indoor golf facility -
  • we have made a few screen shots of what to expect when not using a white stripe on the woods and drivers.
  • As you can see from the above images, the results are not too bad at all. Images 1 and 4 are dead on. Images 2 and 3 only
  • slightly off and only image 5 - of an exaggerated open face - showing more of an issue.
  • Note that irons have a straight leading edge face so these clubs don't require markings. Image 6 (not darkened) is of a wood
  • with a white stripe.
  • It's only the clubs with a bulged curved leading edge face that may occasionally not be quite as accurate but we think most can live
  • with results like these.

White strips on Irons

Most times it will also be necessary to apply a white strip or tracking dots to the lower leading edge of irons too

The above images are of an old 2 iron that - although the face angle was detected without a white strip ( image left) , this cannot always be guaranteed.

The image on the right is with the white strip.

Invalid areas

If there are any places on the mat that are reflecting light and causing face detection errors - as in the above left image -

you can set an invalid area spot over it. Size and position of the invalid are user definable (use ctrl/shift up and down arrow keys to adjust size)

Club path

As the CTS Lite and CX3c is using just one club track camera, club path is being calculated from a percentage of ball path in these systems.

V 8.5.0.3

This percentage can now be user adjusted as of this version of the CP

 


HD (Hi definition)

Hi Definition images

Dual Camera Club tracking

Club path

Club face angle before and at impact to ball

Club speed

The CTS Pro uses two color cameras to capture two high speed freeze frame images just before impact to the ball

The above image shows a composite of both frames

Frame 1 is of the club 1 inch before impact to the ball

Frame 2 is of the club 4-5 inches before impact to the ball

The IBS background image can also be shown

CTS image brightness control

  • The new CTS image brightness control attempts to increase the brightness of the club without increasing the brightness of the underlying surface mat.
  • It is intended to be used for dull looking clubs or when the flash unit starts to lose power
  • In addition, improvements to the face angle detection have been made with this version.
  • CTS Pro and CX4 club tracking camera system
  • We've added a 4 position rotary switch that adjusts the time delay between images on the CTS Pro dual camera system.
  • The aim should be to get the distance between the two images of the club as long as possible without the club in the second image reaching the ball.
  • The adjustments should be made to suit your fastest club speed.
  • Frame image time delays are:
  • 1.1 ms for a club distance traveled between frames of 4.47 cm at a club speed of 100 mph
  • 1.6 ms for a club distance traveled between frames of 7.157 cm at a club speed of 100 mph
  • 2.1 ms for a club distance traveled between frames of 9.47 cm at a club speed of 100 mph
  • 2.6 ms for a club distance traveled between frames of 11.62 cm at a club speed of 100 mph

SX line scan camera issues when using the CTS

Depending on lighting conditions and the distance the CTS unit is away from the line scan camera,

the CTS flash may be picked up by the line scan camera which will interfere with the V and H cam ball tracking.

The minimum recommended CTS to SX line scan camera distance is 6ft.

If experiencing SX flash pick-up issues then the SX will have to be replaced with a trigger array that is not affected by CTS flashes.


CTS tracking dot modes

There are two types of tracking dot modes available with the CTS

1: Extended exposure time mode

2. Freeze frame mode

Extended exposure time method

The above image shows a wood using tracking dots with and extended exposure time

The dots leave two traces of the club traveling at high speed. These traces are then used to measure club speed, club face angel and path.

The main advantage of this method is that only one camera is required to capture all this data and there is no visible flash

Freeze frame method

The CTS freeze frame method uses a very fast (around 80 micro second) exposure time to grab freeze frames of the dots.

When using two cameras (as in the CTS Pro and CX4 system) the result is simply the most accurate and precise club tracking system on the market today.

CTS tracking dots

CTS running in tracking dot mode requires one or two reflective tracking dots be adhered to the top of each club.

Applying the 2 tracking dots is quite simple on woods, drivers and putters.

Just ensure that the 2 dots are in line as accurately as possible and are set reasonably far apart.

Also ensure that the surface of the club is clean and grease free before hand.

The top edge of irons and wedges may be slimmer than the diameter of the reflective dots in some cases but this is not a problem.

Just wrap around any overhanging edges to the back or face of the club.

For high lofted wedges we recommend that the dots be adhered to the lower side of the actual face of the club.

This ensures that they are more visible to the camera.

 


Camera triggers

The CTS camera is triggered by a sensor in the supplied trigger mat.

The mat should be placed so that the overhead halogen lamp is directly over the sensor.

New flash activation sensor in the trigger mat for CTS & Bcam systems

The new CTS/Bcam flash activation sensor prevents the CTS & Bcam from triggering flashes during a club waggle or when teeing up

The flash activation sensor detects a club back swing and only then allows the flash unit to fire within a 3 second time window

Other than preventing possible annoying flashes, the flash sensor extends the life of the flash unit 10 fold

The CX6 trigger mat features multiple trigger sensors

There are 4 labeled 25ft long stereo cables on the trigger mat that are connected to the CTS and Bcam cameras

The flash activation sensors that detect a back swing are optional but recommended

Replacing CTS Xenon flash units

Price $ 45.75

CTS Xenon flash units are rated to be good for 100,000 flashes before requiring replacement

Bower SFD728 CTS replacement Xenon flash units are available at any good photo store

New power battery terminal block for the CTS flash units

  • The flash units in the CTS and ball spin cameras are commercial camera flash units that usually require batteries to run.
  • As we didn't want users to have to regularly replace batteries, the flash units in the CTS and ball spin cameras are powered by external power supplies.
  • In order to get power to the flash like this we had to solder on power leads to the battery terminals.
  • Until now, replacing the flash units required soldering on new battery leads to the battery terminals on the new flash which was a tricky job as the
  • terminals are deep down in the flash unit.
  • This new power terminal block resolves this problem so that replacing the flash unit just requires inserting the terminal block in the new flash and re-connecting
  • the power leads without any requirement to solder on new power leads.

Xenon flash unit with power battery terminal block

Price $ 79.00

 

 

All new CTS units are now supplied with the battery terminal block in the flash units so replacing a CTS Xenon flash is now quick and easy

Xenon flash units are available from around $45.00 from any good photo store

 

Customer objections to using tracking dots on their clubs

  • A major critique we hear from many potential CTS customers is " I don't want to have to stick any kind of tracking dots or strips to my clubs"
  • Well - unfortunately - there's no way to avoid this - as all other camera based golf simulator manufacturers have discovered.
  • Even the most expensive camera based club tracking systems in the world - costing upwards of $18,000 - haven't figured this one out yet.
  • Our R&D has come a long way to better the situation but - alas- it still isn't perfect so we're still recommending using either tracking dots or our
  • supplied white plastic strips to be adhered to all clubs.
  • Note that the tracking dots or strips we supply are easy to apply and remove and won't in anyway harm or damage the clubs.
  • Oh - and by the way - if you're looking at a golf simulator manufacturer's product that claims that their camera based club tracking system tracks
  • precise club data without tracking dots or markings,
  • then don't fall for this marketing hype unless you see absolute concrete evidence to the contrary. Because otherwise it simply doesn't exist!
  • Note that the below mentioned products are in the $15,000 to $18,000 range whereas our systems
  • using camera club tracking cameras are omly in the $4,000 range

Club Tracking dots are also used by the world's No. 1 golf Launch monitor systems from Foresight Sports

GC HMT and GC Quad systems club tracking dots.

Another example of a hi-end club tracking system is from GearsGolf

Note that they also require tracking dots to be applied to the club

Click the above image to read more about the Gears Golf product range

Are you looking for perfect accuracy to work on - and improve your game ?

Or do you just want to play a few rounds with your buddies for entertainment ?

If the latter then just a regular optical sensor club tracking mat will suffice - or even no club tracking at all

but if you're really serious about club tracking accuracy in order to improve your game then you won't mind sticking a couple of plastic tracking dots on your clubs

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CTS Promlem solving

Q 1 : When I swing a club over the trigger mat, the flash in the CTS doesn't flash and the image in the CP Ccam window is dark.

1: Check that the flash unit on the back of the CTS is securely mounted on it's mount.

Unscrew the mount holder and push the end of the flash unit down into the slot. Re-tighten the fixing screw dial.

2: Check that the flash unit on the back of the CTS is powered on and push the trigger

 

 

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