Search found 16 matches

by User
Wed Oct 12, 2016 9:38 pm
Forum: Scenarios and BCI design
Topic: xDAWN P300 speller training xDAWN + Classifier.
Replies: 1
Views: 2041

xDAWN P300 speller training xDAWN + Classifier.

Hello, I've ran these steps and I have some questions, I'd be glad to find the answer for. 1- What are the eigen values? how are they calculated and used in this algorithm? 2- What is the difference between the cross validation accuracy and the training set accuracy? 2.1- which one do I choose to de...
by User
Sat Sep 24, 2016 8:02 pm
Forum: Scenarios and BCI design
Topic: Nested Magic Card
Replies: 0
Views: 1586

Nested Magic Card

Hello, I'm trying to edit the scenario so it has two stages in general. At first I'd like to present the animals in general and after the user chooses a certain animal a following screen would be presented with this particular animal in different colors. Can I achieve that? if yes, kindly tell me how.
by User
Sat Sep 24, 2016 7:48 pm
Forum: Scenarios and BCI design
Topic: Missing an image in P300 magic card
Replies: 2
Views: 2594

Re: Missing an image in P300 magic card

I found this: http://openvibe.inria.fr/forum/viewtopic.php?f=17&t=573&p=2802&hilit=magic+card+number#p2802 Unfortunately, it didn't work for me. The problem shows when I add new column. It deletes tow images from the last row and when I intend to add pictures in the fifth column the designer crashes...
by User
Sat Sep 24, 2016 7:45 pm
Forum: Help for building the software
Topic: Output is the same even though changes have been made
Replies: 2
Views: 3106

Re: Output is the same even though changes have been made

Thank you for the reply.

This is the way how I open it. Unfortunately, I didn't notice any changes.

Any suggestions?
by User
Fri Sep 23, 2016 10:08 pm
Forum: Scenarios and BCI design
Topic: Missing an image in P300 magic card
Replies: 2
Views: 2594

Re: Missing an image in P300 magic card

Does anyone have an idea about this?
by User
Thu Sep 22, 2016 2:22 pm
Forum: Help for building the software
Topic: Recompile Project.
Replies: 1
Views: 2082

Recompile Project.

I edited a cpp file, how can I correctly recompile it to view the changes?

Thanks,
by User
Thu Sep 22, 2016 2:20 pm
Forum: Discussion about OpenViBE
Topic: The Inserm P300-speller
Replies: 1
Views: 2066

The Inserm P300-speller

Hello,

Where can I download The Inserm P300-speller or any other row/column speller?

I couldn't find it here:http://openvibe.inria.fr/documentation/ ... eller.html
by User
Fri Aug 19, 2016 7:58 pm
Forum: Help for building the software
Topic: Output is the same even though changes have been made
Replies: 2
Views: 3106

Output is the same even though changes have been made

I've tried to accomplish what was suggested in http://openvibe.inria.fr/forum/viewtopic.php?f=3&t=329&p=1518&hilit=random+flash#p1518 However, I couldn't see any changes in the flash sequence even though that I rebuilt the project. Do you have an idea why is this happening? Thank you, any help is de...
by User
Mon Jul 04, 2016 9:46 am
Forum: Scenarios and BCI design
Topic: Missing an image in P300 magic card
Replies: 2
Views: 2594

Missing an image in P300 magic card

Hello,

I'm trying to change the matrix size of the P300 magic card from 3x4 to 3x5 successfully, my issue here is that the last image in the last row is not showing (Please refer to the attachments).

How can I fix that?
by User
Thu Jun 30, 2016 1:11 pm
Forum: Scenarios and BCI design
Topic: Recreate Region Based Speller
Replies: 1
Views: 1681

Recreate Region Based Speller

Hi everyone, I'm trying to simulate the Region Based speller (RB) in (http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5443854&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F9754%2F5443853%2F05443854.pdf%3Farnumber%3D5443854) using OpenViBE. My initial thoughts are to change the 6x6 matrix found...
by User
Thu Jun 30, 2016 12:29 pm
Forum: Scenarios and BCI design
Topic: p300-xdawn-3-train-classifier.xml doesn't complete running
Replies: 1
Views: 1512

p300-xdawn-3-train-classifier.xml doesn't complete running

Hello, I'm trying to run the P300 speller xDAWN. the first two steps worked fin but I'm having an issue with "p300-xdawn-3-train-classifier.xml". When I run it it keeps running and I never get the performance of the classifier -ran it for 151h and no luck-. Additional info: Oversampling factor: 4. N...
by User
Fri Jun 24, 2016 2:16 am
Forum: Help for building the software
Topic: Error building the source code
Replies: 2
Views: 3384

Re: Error building the source code

Hi, it looks like there's some problem compiling the emotiv driver. One option is to disable the detection of that driver from the FindThirdPartyEmotiv-script, or if the os-level driver version you have installed is unsupported, you can downgrade it, uninstall it, or fix the openvibe side of the dr...
by User
Tue May 24, 2016 3:41 am
Forum: Help for building the software
Topic: Error building the source code
Replies: 2
Views: 3384

Error building the source code

I've tried to compile the code after following all the steps illustrated in the manual. However, the building was never completed. OS: windows 8 VS: 2010 The log: [ 72%] Built target openvibe-examples-openvibe-to-vrpn [ 73%] Built target openvibe-examples-vrpn-to-openvibe Linking CXX executable open...
by User
Thu May 19, 2016 7:04 pm
Forum: Scenarios and BCI design
Topic: How to connect p300 speller to an online client
Replies: 2
Views: 1996

How to connect p300 speller to an online client

"the default online scenario uses a Generic stream reader to read data from a recorded session. Connect the Acquisition client instead if you want online acquisition." I tried to create a Acquisition client box but there was only one output port for simulations and the identity box needs two. I trie...