Difference between revisions of "Video Capture Revs Tilt"

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==- An accurate PAP marking is vital to being able to measure Axis Tilt with the [[:Image:AxisTilt-Rotation-Overlay.png|Axis Tilt Axis Rotation Overlay]], as is the correct camera position! If either one of those is off by a fraction of an inch it can give an inaccurate Axis Tilt measurement. I like to have a small amount of separation between the PAP tape and the tape going over the fingers as I feel it makes it easier to see that the PAP is accurately marked.==
  
 
<br>Additional Tips:
 
<br>Additional Tips:
<br>- Capture at the highest quality your camera is capable of
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<br>- Capture at the highest quality your camera is capable of.
<br>- Use a contrasting color tape to mark your ball, I usually use white electrical tape
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<br>- The long piece of tape should go from your PAP to above your fingers.
<br>- The long piece of tape should go from your PAP to above your fingers
+
<br>- Use a contrasting color tape to mark your ball, I usually use white electrical tape.
<br>- If you have control of your cameras shutter speed set it to 1/100th or 1/250th to avoid motion blur
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<br>- For those who swing the ball a fair amount, it is ok to line up the camera pointing in the same direction as your ball path.
<br>- If you have a very high rev rate you might need an even faster shutter speed of around 1/500th to avoid motion blur
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<br>- If you have control of your cameras shutter speed set it to at least 1/100th or 1/250th to avoid motion blur.
<br>- When posting online, don't resize the video too small or use too much compression as this will cause a loss of detail
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<br><b>- Motion blur can make getting an accurate measurement difficult.</b>
<br>- To determine speed off your hand, do at least one shot with the video camera at least 3 feet high, so that the arrows can be clearly seen
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<br>- When posting online don't make the video too small or use too much compression as this will cause a loss of detail. Also pay attention to the frame rate (fps) that you save your video at, most video cameras shoot at 30fps (USA, 25fps Europe / Asia) and your video should be exported with the same frame rate.
<br>- An accurate PAP marking is vital to being able to measure Axis Tilt with the [[:Image:AxisTilt-Rotation-Overlay.png|Axis Tilt Axis Rotation Overlay]], and even so the Axis Tilt measurement may not be exact
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<br><b>- Loss of detail or changing frame rates can make getting an accurate measurement difficult.</b>
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[[Category: Bowler Measurements]]

Latest revision as of 16:57, 20 April 2011


- An accurate PAP marking is vital to being able to measure Axis Tilt with the Axis Tilt Axis Rotation Overlay, as is the correct camera position! If either one of those is off by a fraction of an inch it can give an inaccurate Axis Tilt measurement. I like to have a small amount of separation between the PAP tape and the tape going over the fingers as I feel it makes it easier to see that the PAP is accurately marked.


Additional Tips:
- Capture at the highest quality your camera is capable of.
- The long piece of tape should go from your PAP to above your fingers.
- Use a contrasting color tape to mark your ball, I usually use white electrical tape.
- For those who swing the ball a fair amount, it is ok to line up the camera pointing in the same direction as your ball path.
- If you have control of your cameras shutter speed set it to at least 1/100th or 1/250th to avoid motion blur.
- Motion blur can make getting an accurate measurement difficult.
- When posting online don't make the video too small or use too much compression as this will cause a loss of detail. Also pay attention to the frame rate (fps) that you save your video at, most video cameras shoot at 30fps (USA, 25fps Europe / Asia) and your video should be exported with the same frame rate.
- Loss of detail or changing frame rates can make getting an accurate measurement difficult.