Image speed + acceleration from video

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SUMMARY

The discussion centers on calculating speed and acceleration from a video filmed at 30 fps, which was recorded in slow motion at 1/10 of normal speed. The user inquires whether the equations for speed and acceleration should be adjusted by a factor of ten due to the slow-motion filming. The consensus is that the effective frame rate for calculations should be considered as 300 fps, leading to the formulas: Speed = delta distance * fps * 10 and Acceleration = delta speed * fps * 10. Additionally, caution is advised regarding the conversion of pixel measurements to real-world units.

PREREQUISITES
  • Understanding of basic physics concepts such as speed and acceleration
  • Familiarity with MATLAB for data plotting and analysis
  • Knowledge of frame rates and their impact on video analysis
  • Ability to convert pixel measurements to physical units
NEXT STEPS
  • Research MATLAB functions for video processing and analysis
  • Learn about frame rate adjustments in video data interpretation
  • Explore methods for converting pixel measurements to real-world units
  • Study the principles of motion analysis in slow-motion video
USEFUL FOR

This discussion is beneficial for physics students, MATLAB users, and anyone involved in motion analysis or video processing, particularly in contexts requiring accurate speed and acceleration calculations from video data.

axe34
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Homework Statement


Hello
I have a video that is 30 fps according to the video information (when i right click on the file). It is stated that the videos were filmed in slow motion at 1/10 of normal speed.

I'm using a standard version of MATLAB to plot points (actual position) on a moving object; i need speed and acceleration data

Homework Equations


Speed = delta position * fps
accel = delta speed * fps[/B]

The Attempt at a Solution


Are the speeds and accel = to the above equations but times ten ? i.e.

Speed = delta distance * fps *10
accel = delta speed * fps*10
 
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If the video was filmed at 1/10 of normal speed, doesn't that give you an actual frame rate of 300 fps?

By the way, I don't know how you are measuring position, but you have to be careful that it can be hard to convert pixels to other units of length.
 

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