Smaller than a hand, faster than 150 km/h. We find it in every frame.
The club head is the hardest object in golf: small, metallic, motion-blurred and faster than 150 km/h at impact. For DeepSwing we trained our own detection model that reliably finds it in high-speed footage. It runs as a Core ML model directly on the iPhone's Neural Engine.
01.1 — Object detection
Club heads look different in every video: driver, iron, putter. Sun, indoor, artificial light. From the front and from behind. Our dataset covers that variety. The model is built on a current YOLO architecture, converted and optimised for Apple's Neural Engine.
The positions per frame become the trail: the path of the club head through the whole swing. From it we read swing plane, club path and tempo and lay the result over the video. Every point can be checked in the editor.
In the launch monitor, detection measures club head speed in the last frames before impact. Combined with ball speed this gives the smash factor: how efficiently the ball was struck.
01.2 — Capabilities
In use in our products, every day, on real devices.
The club head is found in the normal camera image. No sticker, no clip on the shaft.
From address to finish, even with motion blur and backlight.
The club head's speed just before impact, as a value in every launch monitor shot.
The club head's path as a line over the video, checkable point by point in the editor.
The plane in the backswing and downswing, with a hint when the club comes too steep or too flat.
When the club comes from too far inside, the coach explains exactly that and shows the right drills.
Two trails side by side, overlay videos to share with a coach or the community.
Driver, woods, irons and wedges, indoors and outdoors.
01.3 — How it works
240 frames per second, 1/8000 s exposure, 1080p.
YOLO model on the Neural Engine, frame by frame.
Association over time, outliers are rejected.
Path, plane and speed of the club head.
01.4 — Used in
iOS & Android · No extra hardware · GSPro
Phone on a tripod, hit real balls: ball speed, club speed, launch angle, direction, carry. 12,000+ real courses, games, projector and GSPro. From €8.99 a month.
The launch monitor on your phoneiOS & Android · AI coach · Launch monitor · GPS
AI swing analysis with 30 checks, a launch monitor on your phone and golf course GPS with green heatmaps. 12,000+ courses, for iPhone, iPad, Mac, Apple Watch and Android.
Coach, launch monitor and GPS in one app01.5 — FAQ
No. The model detects the club head in the normal camera image. No stickers, no sensors on the club and no extra hardware.
Yes. The model runs on the device. Videos do not leave the phone for analysis.
Yes. Clubs, rackets, balls, pucks and tools follow the same pattern: capture data, label, train, optimise for the target device and measure against a reference.
More technology
Finds the ball on the mat, detects launch within a few frames and reconstructs speed, launch angle and direction. The foundation of our launch monitor on a phone.
Club head and ball detection, ball flight physics and 3D rendering in one app: carry, total distance, ball speed, launch angle and direction. On iPhone, iPad, Mac and projector.
Real-time pose estimation: joints, angles and motion phases, right on the phone. In DeepSwing it becomes a coach that splits every swing into six phases and runs thirty biomechanical checks.
Contact
Object detection, body tracking, segmentation or cartography, on your device, in real time. Let's talk about it.