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High speed image capture in sports is used to analysize performance in greater detail to improve techniquique and movement. To do this effectively you need a camera system to give you good footage. The streamview LR system offers an afforable solution which is portable, fast, has superb image quality and good sensitivity.
In order to capture footage that is useful three main aspect needs to be considered.
- Lighting – Is there surfficent light around the object being recorded?
- Resolution – The higher resolution you use the more storage space is required
- Speed – What speed is necessary?
Consumer video cameras typically have image resolutions of 640x480 (VGA) and record images 10-60 frames per second. Many sports analysis systems use a standard camcorder (30fps) or offer a maximum of 60fps. The Streamview LR system gives you 200fps. The difference can be seen clearly as illustrated:
Golf swing taken with a standard camcorder @30fps
Golf swing taken with the StreamView LR @ 200fps
The StreamView LR generates files the same format as those generated by conventional video recorders. The most common audio/visual format is the Audio Visual Interleave (or AVI) format defined by Microsoft. An AVI file created by a high-speed camera should playback just as one created by a conventional video recorder. Most high speed cameras do not record audio because of the audio sampling problems arising from the variable frame-rates used during recording.
The StreamView LR is a portable battery-powered camera designed for quick and easy set-up in the field that captures 640x480 (VGA) images at 200fps. The minimum shutter speed is 1/100,000 or 10-microsecond – fast enough for any sporting event.
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