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Stereo Parallel camera setup Stereo Converging camera setup Camera calibration Carry adjustments Putting and chipping IBS image processing Technical help

Stereo 3D vision cameras

GSA Golf Stereo system differences explained

There are 3 main stereo systems available.

CX Surround - All cameras and lights built into one 86" (7.2 foot) long case.

The system includes a line scan camera that allows the user to putt away from the regular hitting (i.e. on a smother surface).

When used with the VisTrak camera, the user has the option to allow the stereo cameras to measure ball speed and path instead if the VisTrak camera.

The Surround also works with the VisTrak camera that is supplied in a separate casing

The system is mounted 5 to 6 ft ahead of the player's hitting position.

CX / VisTrak Stereo - Has the exact same function as the CX Surround but all cameras and lights are in separate casings

As with the Surround, the system includes a line scan camera that allows the user to putt away from the regular hitting (i.e. on a smother surface) and a VisTrak camera can be added to it.

When used with the VisTrak camera, the user has the option to allow the stereo cameras to measure ball speed and path instead if the VisTrak camera.

The system is mounted 5 to 6 ft ahead of the player's hitting position.

VisTrak IR Stereo - The VisTrak IR Stereo system combines the stereo cameras with the VIsTrak IR in one shorter 42" (3.5 ft) case.

The system does not feature a line scan camera so all shots including putting have to be made from the VisTrak hitting mat.

The stereo cameras in the VisTrak IR Stereo are triggered by the VisTrak camera as soon as it detects a ball strike.

As with the CX Surround, all cameras and lights are built into one ceiling mounted case.

Unlike the Surround, there's no option to allow the stereo cameras to measure ball speed and path. These parameters are always measured from the VisTrak camera.

The Stereo cameras in the VisTrak IR Stereo are thus only used to measure ball vertical launch angle.


Click above to read about the CX and VisTrak Stereo setup

Standard CX 2 cameras can be setup in 3 ways

1. Classic X,Y

The Classic X,Y is the standard setup with one camera at floor level pointing across the enclosure left to right (the Vcam)

- to capture the vertical launch and speed of the ball -

and other (the Hcam) mounted on the ceiling on the center line pointing straight down - to capture the ball path, left or right.

Advantage: Greatest FOV (field of view) for both ball height and path. Disadvantage: cameras are more time consuming to calibrate

2. Converging stereo

This method has both cameras mounted on the ceiling - some 8ft apart.

Advantage: Easier to calibrate.

3. CX Surround stereo

This method has both cameras pre-mounted and fixed in a single case that is mounted on the ceiling.

CX Surround Advantages

1. No calibration is necessary.

2. as all cameras are pointing downward - there's no requirement to use light absorbent materials (drapes) on the side walls.

3. As the CX Surround is ceiling mounted - out of harms way -

there's no issues with people inadvertently moving the floor mounted cameras

which will then require re-adjustment in the Control Panel

4. All cameras, power supplies and electronics are built into one case

This drastically reduces the number of cables and wiring complexity of the system.

CX Surround 3D stereoscopic ball and club tracking

The CX Surround has all cameras and lights built into one long (8ft) case

CX2 Surround : $ 4,499

2 camera ball tracking - calculated club and ball spin data

VisTrak Surround: $ 5,999

calculated spin and spin axis

3 camera ball and club tracking using the VisTrak high speed camera with video swing playback

VisTrak Stereo

The VisTrak Stereo system is the same as the VisTrak Surround other than the cameras and LED IR lights are not mounted into one case.

In addition to the 3 full frame cameras,

an optional Line Scan camera is available that triggers the two stereo cameras as the ball passes into its FOV.

This feature allows the ball to be played away from the normal hitting surface when putting or chipping. i.e. from a smooth green type surface

All software, cables and lighting is included (either IR LED or visible light LED spotlight).

$ 3,999

With Line Scan Camera


VisTrak IR Stereo

VisTrak IR Stereo with the VisTrak IR LED panel and the stereo cameras mounted on the sides of the IR Panel

$ 3,999


The VisTrak IR Stereo has all components mounted in one case and captures vertical launch without the need for a line scan camera.

VisTrak's swing playback videos show your club path, speed and face angle plus ball speed and direction

Play a complete round of indoor golf with just the stand alone GSA Golf VisTrak system

or add the VisTrak to your existing launch monitor or any other golf simulator

(i.e. GC2, GC Quad, GC hawk, SkyTrak, Trackman, FlightScope, OptiShot, p3proSwing etc...etc..)

to capture real time video of your swing showing precise club and ball data after every shot.

The VisTrack Surround adds the VisTrak high speed video camera to the CX2 Surround

for video play back club tracking (club path, speed and face angle) plus ball spin and spin axis

Note: the VisTrak Surround features a smaller separate case

containing the high speed camera mounted over the player's hitting position


F3 full golf simulator featuring the "VisTrak Surround" all camera ball and club tracking - $ 8,995

The CX Surround is shipped in a purpose made wood crate.

All CX Stereo and Surround systems come complete with built-in IR Lighting, full frame cameras, power supplies, cables and a line scan trigger camera.

System includes TGC 15 course software plus RC single course software !

CX Stereo / CX Surround club tracking

The CX3 Surround uses the Ccam single camera club tracking motion trace trace system to capture -club face angle, club path and speed

Vcam/Hcam conversation to stereoscopic vision

Current users of the classic X,Y Vcam and Hcam ball tracking system can simply convert their cameras to stereoscopic vision systems too at no extra charge

Some amount of calibration will be required though. Instructions on how to do this are published on the link below.

Click above to read about the CX and VisTrak Stereo setup

CX Surround / CX Stereo Q & A

How does the GSA Golf CX Surround / CX Stereo compare with the GC Hawk?

i.e. is the GSA Golf Surround a poor man's GC Hawk like the SkyTrak is a poor man's GC2?

Well, I'm sure many will make this comparison and - in fact - we do too.

At present we don't have enough information about the GC Hawk to make a direct comparison but it would appear that the two systems are quite similar.

Both systems use a stereoscopic method to determine ball launch angle, speed and path and are ceiling mounted.

Does the CX Surround also detect club head data?

That depends on what version of the CX Surround is purchased.

The CX3 Surround and CX3 Stereo feature a 3rd camera dedicated to this task.

The VisTrak Surround features a 3rd hi-speed camera dedicated to this task.

From what I hear, the GC Hawk at present does not detect any club data.

Does the GSA CX Surround / CX Stereo also detect ball spin?

That depends on what version of the CX Surround is purchased.

The CX 4 Surround features a 4th camera that detects spin and spin axis.

The above images show how back spin can easily be seen when viewing the ball from the side (as does the GC2 and our Bcam system). Viewing from the side, a full 360 degrees of rotation can be seen and thus spin rate measuring accuracy will be high.

In contrast, if viewing the ball from above, the max amount of rotation viewable by the camera would only be around 30 or 40 degrees before the reference markings (virtual or real) would rotate backwards out of view of the camera.

Note that the standard method of measuring ball spin with cameras is to grab two images of the ball at a set time delay between the 2 frames.

Image processing then detects a matching marking or dimple pattern in both frames that is used to determine the amount of rotation that ball has made within the frame time delay.

Simple math procedures then determine the spin rate in RPM.

Do I have to use specially marked balls with the CX Surround?

No, you can use any balls with a black logo on it like the Callaway balls.

What is the difference between the CX Surround and CX Stereo systems?

Just the casing.

However - because the camera mountings are fixed in the CX Surround - we are able to pre-calibrate the cameras saving you the trouble of going through this lengthy procedure.

Other than that, the CX Stereo features the exact same cameras and electronics as the CX Surround but is split into two casings.

However, whereas the CX Surround - due to its single casing - is confined to using a stereoscopic camera setup, the CX Stereo - due to its separate dual camera casings - can also be setup as a standard X,Y system.

What is the difference between the CX Stereo and the CX2?

Just the free software options to run as in a stereo or classic X,Y configuration.

How does the GSA CX Surround / CX Stereo compare with the GC Hawk or about-golf's 3Trak price-wise?

Not knowing yet what the price of the GC Hawk will be I can only guess, but all indications are that the GSA CX Surround or CX Stereo will only be around a third or a quarter of the price of the GC Hawk or aG's 3Trak.

At present - and based on Foresights other product prices and a few golf sim forum - I'm estimating that the GC Hawk will be in the $18,000 and $22,000 range (as is aG's 3Trak we are told) while the CX Stereo / CX Surround is in the $,3000 to $5,000 range.

How many GSA Golf CX Surround systems are sold per year?

We've (as of April 2019) have only just started production of this product so we can only estimate what the CX Surround's annual sales volume will be.

According to reports we've heard, the annual sales volume of the ForesightSports GC Hawk - priced at around $15,000 - will be selling in the 500 per year range.

If that's the case then the GSA Golf"s CX Surround - which does essentially the same thing but priced at just $3,499- should out sell the GC Hawk 4 to 1. i.e. 2000 units per year.

That's probably not going to be the case though. Our - more realistic - estimate will be more in the 50 units per year range. i.e. 1 per week.

However, judging from the response we're getting, it would seem we could easily be selling 100 plus units per year.

The GC Hawk is using 4 cameras for just ball tracking while the CX Surround is using just 2 cameras for ball tracking. Why is this - and what is the advantage of using 4 cameras instead of just 2 cameras for ball tracking ?

Dunno! - Well... it could be ( just a guess here mind you) that the 2 inner cameras in the GC Hawk are used to capture super high lofted shots that would normally be out of view of the 2 outer cameras.

That's a bit of an issue with stereoscopic systems - the higher the ball, the more likely the ball will not be in the FOV of the cameras.

Another educated (or wild) guess could be that the 2 inner cameras use zoom lenses to capture larger images of the ball - and thus more detail - that would be used to better determine ball spin and spin axis.

There could well be other reasons for this that we are not aware of so don't take our word for it. If you really want to know, ask Foresight Sports - and if they get back to you, drop us a line as we'd interested to know that too.

BTW the CX Surround uses up to 4 cameras as well but the other 2 cameras are used to capture club data (which - at present at least - the GC Hawk doesn't capture ) and ball spin.

How difficult is it to install the CX Surround?


As far as wiring is concerned, it couldn't be much easier (see above left diagram). Just two Cat5 cables connected to two CAT5 (supplied) receivers and 120v power.

Mounting this 7ft long 17 Ilb unit on the ceiling may present more of a challenge though. Although it's simple enough (see above right image), it will probably be a two man job on two step ladders to get the unit up there.

For those that wish (or have) to do it alone and don't have two step ladders and an additional helper, we'll be publishing instructions on how to mount the unit using a nylon rope pulley system.

Pros and Cons of Stereoscopic vs classic H cam V cam setups

Pros and Cons of the CX Surround vs CX Stereo

Click above to read about the CX and VisTrak Stereo setup

3 optional camera setup configurations

1. Classic X,Y 2. Stereo 3. Surround stereo

The above video is from customer Keith showing putting using the new Converging stereo setup.

Not sure about GSA Golf's tracking systems?

GSA Golf offers alternative tracking systems from Foresight Sports too!


Purchase your complete golf simulator with GC Hawk or GC2 launch monitors

direct from GSA Golf

CX Surround kits

CX Surround kits are available on the Kits and Components page

Click above to read more about GSA Golf components

Today, this old ad from the 60's, would probably read

"If you can afford a motor scooter, you can afford a GSA golf simulator"

Hi! I'm Martin Paul Gardiner

Electronics and software development engineer and founder of GSA Golf

Regularly check out my tech news page for all our latest developments and free updates

if you have any questions

please feel free to contact me personally anytime between 10am and 3pm US ET - M to F






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