OpenViBE forum

Hi, I know this is a late reply. But, I guess it might help someone who is facing a similar issue... Even I was facing a similar problem, so recently figured out a solution to this. So you can change the size and the position of the boxes by modifying the values in the config file that can be found ...

Thank you so much! Your clue on LDA implementation being multiple class, led me to PRML book by Bishop, where Chapter 4 explained a similar implementation. I was initially looking at plugins/processing/classification/src/box-algorithms/ovpCBoxAlgorithmClassifierTrainer.cpp and processor.cpp. I will ...

Hi, You can try to observe different activities like alpha, beta, etc. if you are just exploring the activities of the brain. For example, if you are trying to observe signals pertaining to meditation/relaxation then you should be looking for the alpha waves in the signal. Any measurement starts wit...

Hello I am trying to understand the working of the classifier trainer box with different strategies like: native, one vs all, one vs one etc. In the case of a native classifier, the .cfg file consists of two sets of weights and bias values. Could someone please explain as to why we get two sets of v...

Our team has been working on detecting foot motor imagery using OpenBCI as an acquisition h/w. We initially started with the neurofeedback and tiefighter scenarios, and also referred the post by Jeremy Frey http://blog.jfrey.info/2015/03/03/openbci-motor-imagery/ We have followed the brisk foot move...

Hi Angela, Yes, we were able to play the online game with the OpenBCI system. We followed the same electrode positions as per the given scenario, we changed the flicker frequencies to 10Hz, 12Hz, and 15Hz. Apart from this, under the classifier trainer we used LDA with one vs all strategy. According ...

Hi Jussi, Thank You for the IEEE reference, I think this will give us more clarity in understanding the OpenViBE scenarios, and VR application. I will look into the C++ code and try to modify it, and get back. In some of the other references for SSVEP, there is no mention of CSP, also there have bee...

Hi all, I am an undergraduate student trying to use OpenViBE with an OpenBCI system for BCI applications. Firstly, I would like to thank the OpenViBE team for this amazing tool for EEG analysis and the driver support for OpenBCI. Currently my team and I are trying to use the ssvep paradigm for our p...