Hi
1. We want to buy a new system. I am familier with Vicon and Qualisys mocap systems. Coda motion and motion analysis systems are also under consideration. Does anyone has experience with Motion Analysis Inc and Coda Motion mocap systems? Which one you is better for a general purpose life science motion analysis Lab?
2. In Vicon systems we are limited to the vicon plugin gait model mostly. As I know bodybuilder is not an easy to use software but I do not know about the new software developed by Vicon, procalc. Do anyone worked with procalc? What about the skeleton builder of Motion Analysis ?
3. We have a limited space (9 by 6 meter room) and I also want to know if having 3 coda trackers could do the job as 8 cameras of other systems ( because of budget limitations we can atmost buy 8 cameras for passive systems or 3 active trackers each having 3 embeded cameras ). We can not put the trackers in 120 degree distance around the center of capture volume and I am not sure if 3 trackers would be enough.
4. Also I want to know which system is the best for real time data streaming to matlab or labview. We want to use the system for giving real time kinematic feedback to the subject and use the system for biofeedback test and training also for augmented and virtual reality base rehabilitation purpuses.
Sorry for asking 4 questions in one comment. And thank you for sharing your ideas
Bests
Dear Pooya,
Thank you for your thorough answer.
We are considering Vicon and Motion Analisys, also the Qualisys. We already have a Qualisys Oqus 1 system. We used it during past 5 years and it did tje job quite well. I personaly write my own codes for the post processing and analysis. But as we are a clinical research center with researchers with clinical background which it is not easy for them to do some programming parts; We are thinking about updating our softwares with Qualisys specially to have QBE. Also updating our oqus cameras in the future. For the new system which will be used in a new Lab we want to consider Vicon and Motion Analysis systems and decide to buy one based on the offers recieving from companies and their dealers here. My survey showed that both have enough capabilities to do what we need.
bests,
Dear Pooya,
a problrm we may probably have using Vicon is that for not using default models of Vicon we have some options. using the BodyBuilder or ProCalc softwares developed by Vicon are the primary options. ProCalc is quite new and I do not know that much about it but for Bodybuilder I some users told me that it is not easy to use the scripting language used in BodyBuilder. have you ever used or do you know about developing your own models when working with Vicon? why it is rare to use Vicon with models other than Plug-in Gait?
Dear Mohammad,
I agree with Pooya, I used Qualisys, Vicon, and have Simi system in our Lab (in Egypt). The best system that I prefer is Qualisys then Vicon because the easy to use, accuracy, flexibility, connection with other software, and an important reason is the service after you buy the system. I think you should not compare Qualisys and Vicon with other system (Big gap).
Regards,
I just came across this old question; I am sure you have your answer by now but since others might Google "Vicon vs Qualisys" and land on this page, I share my opinion. I have worked with both Vicon and Qualisys and in my experience Qualisys was easier to work with. The Vicon system I used had active LED markers which at first sound great because each marker blinks at unique frequency hence not confused with the other markers. After I used it I realized that wiring was more challenging that I had thought (e.g. wire entanglements impede user's motion etc) more importantly if the power to the marker is interrupted you'd loose the LED marker in your data. The latter problem did not seem so prominent during data collection however when I was analyzing the data, I discovered that the data were missing on many long (3 sec or longer) time intervals which would make it impossible to interpolate. I did not experience either of the abovementioned issues working with a Qualisys system with passive markers.
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