1. Introduction to Motion Video Analysis
LEE Kai-chiu
Seconded Teacher
PE SECTION, CDI
08 Jan, 2008

2. Installation Process
Download the software from the following link: 1

3. Installation Process
Extract the zip file into a single folder.

4. Using the MVA software (MVA.exe) – A quick guide
Open a new project
Choose Open Video to start a new project

5. The video file format allowed is mpeg (. mpeg or
The video file format allowed is mpeg (.mpeg or .mpg) or avi (with the appropriate codec installed in the computer). Choose the video file to be opened.

6. Choose horizontal, vertical or 2 dimensional
Click OK after choosing the type of motion. 1 2

7. Input Reference Data
Click OK on the dialog box and click on a point on the video screen to specify where you want to place the coordinate origin. 1

8. After you have marked the origin, the Reference Distance dialog box will appear.
the coordinate origin 1

9. After marking the two points on the video screen, a yellow line joining the two marked points will appear. A Reference Distance input dialog box will also appear. 1 2
mark two points 2 3

10. In the top space, input the mass of the moving object captured in the video. In the bottom space, input the number of frames you want the video to step forward each time you capture a position data point on the video screen. 1 2 3

11. Setting Starting Frame and Ending Frame
To decide the frames to start and end the motion data capture, using the scrollbar (or the step forward/ backward buttons on the two sides of the scrollbar). 1 2

12. Capturing Motion Data Points on Video
On the video screen, click on the position of the moving object on the video screen in each frame step to capture the motion data points. 1 2

13. Check the Show Axis and Show All Points check boxes, and then click on the Apply button to display the axes and data points. 2 3 1 5 4

14. Curve Fitting and Graph Plotting Using Plot Panel
Click on the No. of Sections pull down menu and choose 1, 2 or 3 sections to be fitted. 1

15. Click on the Fitting Methods pull down menu and choose the type of polynomial fitting you want to do on the motion data. 2 1

16. Click on the Plot Velocity Graph, Plot Acceleration Graph or Plot Energy Graph pull down menus and choose the graph you want to plot.
Best Fit Line 1

19. Save Project The “Save Project” button saves the project information into two files, namely, the filename.mva file and the filename_setting.txt file.
The filename.mva file saves information including the reference length, coordinate axes and data points etc.
The filename_setting.txt file saves information about curve fitting and will exist only if you have used the Plot Panel (for graph plotting or polynomial fitting) in the project. 1

20. Further Investigation
Measure the starting angle in the Crouch Start
Measure the upper body upright rate in 20/30m
Different field events with 2 dimensions.
The speed of athletes during take-over
……(with your creative thinking)

21. THANK YOU