Logger Pro Video Analysis:
Integrating Technology into
Science and Math Curricula
Monday, January 4, 2016
Kathy Goepfert: Physics Teacher ORHS
kjgoepfert@ortn.edu
What is Video Analysis?
• By plotting dots to mark position on each frame
of a video, we can measure the displacement,
velocity, and acceleration of any object captured
by video using graphical analysis tools.
• The standard frame rate for video is 30 frames
per second. That means that 1/30 s, or 0.033 s
elapse between frames.
Computer Log On
• User Name: hslc221lab
• Password: leave blank
Step 1: Open Logger Pro
• There will be a folder on the desktop titled
“Science.” Open this folder to find the icon for
Logger Pro 3.6.0
OR
• You can always open it from the Start button.
Look for “Vernier Software”
Step 2: Copy the videos to the
desktop
• Open File Explorer, then select network
location N drive, then select Myschool
folder, and then finally the KJGoepfert
folder.
• In the January 4th inservice folder you
will find a dunebuggy video. Copy and
paste the video onto the desktop
Step 3: Insert the movie into
LoggerPro
• Go back to the LoggerPro software and
find the “Insert” menu.
• Click to view selections.
• Choose “Movie” and select the video
clip from the desktop.
Step 3: Insert the movie into
LoggerPro
Step 4: Enable Data Analysis
• Click on the button in the bottom right corner
with the three balls and the triangle. If you
hover over it, it will say “Enable/Disable
Analysis.”
• When you click, a panel of buttons will pop up
along the right side of the video.
Begin data
analysis
Step 5: Set the scale
• Click on the left side of the meter stick and
drag to the right side of stick. Set this distance
as 1 meter.
Set Scale
Step 6: Set the Origin
• This is the point you want to follow
throughout the analysis.
• I am choosing the front tire of the dune buggy
and clicking on it.
Set Origin
Step 7: Begin plotting points
• Click on the same spot you placed your origin
for each frame.
• You need to collect 30 points. (That’s 1 second
of footage)
Add Point
Step 8: Analyze data on graph
• Click on curve fit and select the Video Analysis
X (we are looking at the change in horizontal
velocity) (red dots)
Curve Fit
Step 9: Fit the Data
• Select the correct general equation for
your data (either linear, quadratic, or
inverse).
• Click “try fit” and see if the trend line
goes with your data, then click “ok”.
Step 10: Interpret the Results
• This gives you the slope, y-intercept, and
equation for your line.
• If you choose the correct trend line, your
RMSE should be much less than 1 and your
correlation should be very close to 1.
Logger Pro for your school
• The cost of a site license for Logger Pro 3 is $249.
• You may also have students download the Logger
Pro 3 demo from the Vernier website. This demo
is good for 30 days.
INDEPENDENT PRACTICE:
ACCELERATED MOTION VIDEO ANALYSIS
Video Analysis
• Perform video analysis on 2 other videos:
– Balldrop
– Balloon1
• Repeat steps from dunebuggy with these
two new videos, but this time we are
looking at the vertical change in velocity.