Difference between revisions of "Measure Axis Rotation & Tilt & Revs"

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'''This video will show you how I measure axis tilt, rotation, rev rate, and ball speed from video that has been properly shot. For a tutorial on how to properly shoot the video please see: [[Video_Capture_Revs_Tilt|Video Capture Revs & Tilt]]'''
 
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- If you need a video program download MPEG Streamclip. It is not a full featured editor but will allow you to do what you need to do to get these measurements...and it's FREE!
 
- If you need a video program download MPEG Streamclip. It is not a full featured editor but will allow you to do what you need to do to get these measurements...and it's FREE!
  
- If you don't have a photo editing program for using the overlay, you can either download GIMP (free) or read this guide:
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- If you don't have a photo editing program for using the overlay, you can either download GIMP (free) or read this guide: [[:Image:MeasureVideoAnalysisSpreadsheet.xls|Bowler Specs Spreadsheet]]
  
[[:Image:MeasureVideoAnalysisSpreadsheet.xls|Bowler Specs Spreadsheet]]
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[[Category: Bowler Measurements]]

Latest revision as of 15:55, 20 April 2011

This video will show you how I measure axis tilt, rotation, rev rate, and ball speed from video that has been properly shot. For a tutorial on how to properly shoot the video please see: Video Capture Revs & Tilt

- The calculating revs portion of this video assumes a 30fps video. If you want to avoid doing the math there is another method of finding your rev rate, it is actually the method I use most the time. You will still need to use video in a video editing program but instead of counting how many rotations the ball makes in 10 frames, you simply make a note of the frame number at the point of release and the frame number after 1 full rotation, then plug those numbers into the boxes at http://www.bowlspot.com/page/release . You can ignore the third box if you are just interested in your rev rate.

- If you need a video program download MPEG Streamclip. It is not a full featured editor but will allow you to do what you need to do to get these measurements...and it's FREE!

- If you don't have a photo editing program for using the overlay, you can either download GIMP (free) or read this guide: Bowler Specs Spreadsheet