Video display with OpenVibe
Posted: Mon Jul 19, 2021 7:44 am
Hello,
For the realization of an experiment in which we had to display image and videos we used a Python Box and the library OpenCV.
For the moment, the only solution proposed were using VLC with a command box ( viewtopic.php?f=13&t=383&p=1716&hilit=vlc#p1716). However, this solution add variable lag of 1 second to the experiment.
Our solution is responsive and adaptative, it can display different videos several times and also display images.
Here there is a link of a toy example that could help you to implement your own experiment. https://github.com/dtrocellier/Video_OpenVibe
It cannot be used with long videos because while python is displaying the video because Openvibe is not writing the EEG signal and it is stocked in the RAM. With my personal computer with 8 Go of RAM I have no issue with a 10 second video.
Thank you for reading
For the realization of an experiment in which we had to display image and videos we used a Python Box and the library OpenCV.
For the moment, the only solution proposed were using VLC with a command box ( viewtopic.php?f=13&t=383&p=1716&hilit=vlc#p1716). However, this solution add variable lag of 1 second to the experiment.
Our solution is responsive and adaptative, it can display different videos several times and also display images.
Here there is a link of a toy example that could help you to implement your own experiment. https://github.com/dtrocellier/Video_OpenVibe
It cannot be used with long videos because while python is displaying the video because Openvibe is not writing the EEG signal and it is stocked in the RAM. With my personal computer with 8 Go of RAM I have no issue with a 10 second video.
Thank you for reading