Advanced Imaging


Advanced Imaging Magazine

Updated: January 12th, 2011 10:01 AM CDT

Grooving the Stroke

New system allows recreational golfers to analyze each phase of their swing
golfer swinging club
© Allied Vision
The move of the swinging player is captured by the two cameras simultaneously at 200 images per second. The cameras are positioned with a 90 angle to each other to record the action simultaneously from the front and the side.
interactive terminal equipped with a color touch-screen display
© Allied Vision
The system consists of an interactive terminal equipped with a color touch-screen display that houses the control unit and image processing combined with two AVT Pike digital cameras.

By Barry Hochfelder


As soon as a shot has been recorded, the player can watch his or her swing on the terminal's display. A didactic tool allows slow-motion control for an image-by-image replay to detect the slightest imperfection. Graphic markings can be added on the picture to help assess the swing motion and a comparison mode offers the possibility to compare the player's own performance with that of a professional instructor (or one's earlier motion) stored in the memory of the system.

After the training, the golfer can save the whole data (video file, assessment of the swing, speed of the ball,...) on a digital device such as a USB key or a memory card. That way, he can archive his performance at home on his PC to follow up on his progress or further analyze the video recording at home with companion software available for download on the website of the service provider.

"For that project, a high frame rate and a short shutter time were key to ensuring precise, high-quality recordings which are crucial for the ongoing analysis," says Arnaud Susset, CEO of R&D Vision. "The digital camera Pike F-032B from Allied Vision Technologies and its high-speed IEEE 1394b interface were the best choice for this application."

R&D Vision was supported and counseled in the choice and integration of the cameras by IMASYS (Suresnes, France), a leading machine vision specialist in that country. A member of the STEMMER Imaging Group. In particular, the image processing application developed by R&D Vision relies on IMASYS' Common Vision Blox library (CVB).

Swing & See has now reached its marketing phase: a dozen systems already have been successfully deployed on French golf courses. The goal of V2S, the provider of the system, is to market the product worldwide. The company is already investigating opportunities to adapt the system to other sports, for example for practicing the serve in tennis.

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