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3D Qualisys Manual

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on 27 May 2014

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Transcript of 3D Qualisys Manual

3D Qualisys Manual

Intro about Qualisys
What equipment is needed to set up
Setting up the cameras
Setting up the computer
Capturing the motion
Identifying the markers
Analysis the motion

Table of contents

Introduction about the Qualisys system:

Equipment list:

Place the other end of the Ethernet cables (Blue) into the next camera along in the Previous slot

Then use the Ethernet cables (Blue) and place one end into the master camera in the slot which says Next

Decided on the type of motion that you want to have captured i.e run, skip, jump and hop before setting up the cameras
Set up the cameras around the motion that is intended to be captured, insuring that all the cameras are level on the tripods, and pointing down towards the motion that is going to be captured

Take the data cable (Yellow cable) from the computer and put it into the data slot on camera closest to the computer, as this is seen as the master camera
Setting up
the cameras:

The last camera Ethernet cable (Blue) in the previous slot
In the next camera place the other end of the Ethernet cables (Blue) into the Next slot, and the other Ethernet cable (Blue) for the next camera along into the previous slot

The numbers on the cameras represents the amount of markers that are being used to capture the motion required

Make sure all the cameras are coming up with the same

If they are not coming up with the same number then adjust the cameras till the same numbers come up

Once the Qualisys Track Manager (QTM) software has been loaded turn the cameras on, starting with the master camera (one closest) to the computer

Click on the Qualisys Track Manager (QTM) software

Once the cameras are all set up turn the computer on

Setting up the computer part 1

Once all has been set up and the times have been set then press the start button

Have the area that is going to be captured marked out with the metal L-shape marker

Once on calibration click on delay time i.e. 5 seconds and calibration time of 30 seconds

Make sure lineiaization loaded up all cameras i.e 4 cameras
Once all the cameras are coming up with the same number click on calibration in the
Setting up the computer part 2

If the cameras have identified the wands markers on the screen and the calibration test has passed then the motion is ready to be captured

Once the calibration test has been conducted look on the computer and make sure the cameras have identified the wands markers, make sure it says passed

Use the wand and move it around the area that the motion is going to capture

When all the markers are seen on the preview window then press capture to conduct the test

If markers are not being picked up then adjust the cameras until the markers are displayed on the preview screen

Once the L-shape marker has been removed ask the participant to stand in the middle of the cameras and check on the computer screen to make sure all the participants markers have been picked up on the preview window

Markers need to be placed onto the participants joints that are looking to be captured,

Capturing the motion

Test is now ready to start

Click on a marker in the unidentified trajectory panel which is show in this example as the red markers

While the motion of the participant is playing on the computer screen right click on the top trajectory box and select labels then load labels

You can rotate the view by left clicking and dragging the image until all of the markers can be seen

Click on play on the toolbar to watch the motion that has been captured.

Identifying the markers

Also bones can be added to the motion, by right clicking on the markers in the motion whilst holding the CTRL button

Continue this process until all of the red markers have been identified

Then right click on the selected unidentified trajectory panel using the mouse and then label the unidentified trajectory with the created labels

Once the bones have been created it should look like this example

Click on bones and then click on create bones

Once you have chosen what you want to analyze, for the example velocity, it will come up with a graph
Then click on Ok

Once the analyze has been clicked on it will come up with different options for you to choose from to gather your results depending on what you are looking to analyze.

After the bones have been linked to the motion then the motion will be ready to be analyzed. Click on edit and then click on analyze

Analysis the motion

Once it has been loaded up it will come up with data like no. of frames, no. of cameras, no. of markers, frequency and other forms of data as seen in this example below

Once Excel has been loaded click on File, Open and then find the data you have saved

After the data has been saved, click on Start, Programs, Microsoft Office, Microsoft Office Excel 2007

To export the data that you want to use in excel then click on export on the screen

To export the data that you want to use in excel then click on file and click on save. Then save the data under the name you want to chose

Once the calibration and delay times have been set, then the motion is ready to be captured

Subject suit (Optional)
Calibration wand

Double sided marker tape
Reflective markers
Data cable (Yellow)
Ethernet cables (Blue)
Pro-reflex cameras
L-shape marker
Make sure the calibration time is set appropriately and the delay time set appropriately if required.

After it has been identified then select the appropriate name from the list in the identify box
This interactive online manual is a user friendly step by step online manual to help guide and assist future users of the 3D Qualisys machine. When working through this manual it can either be paused, stopped, or even played back if the user has missed or not understood certain parts of the manual. When working through the manual be sure to look at the blue arrows as they will indict to the user what they should be looking for at each stage of each process.
• Qualisys is the software that can be used by coaches, athletes, doctors and researchers to capture a sporting motion performed by an athlete to gain data on how the athlete is performing their sporting motion, helps to learn more about injury mechanisms and prevention. It can also be used to improve a player’s technique for better results in various sports application. Qualisys is currently used by a number of different sports that include football, rugby, track and field athletics and many more for more information on the 3D Qualisys machine and how it can be used in different sports go on to the link provided by this manual for more details. http://www.qualisys.com/
• This manual is a user friendly step by step manual to help guide and assist future users of the 3D Qualisys machine. When working through this user friendly manual, each section is clear to see where the new section starts and finishes. In each section it will provide the user with a step by step guide with brief descriptions by each photo, and also provide arrows by each photo to help identify to the user the key points which have been made at each stage of the manual. By following this step by step user friendly manual it will assist the user in being able to understand what Qualisys is, how to set it up, and how to use the 3D Qualisys machine.
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