Search found 264 matches
- Tue May 18, 2021 1:33 pm
- Forum: Designer
- Topic: Computing alpha power
- Replies: 6
- Views: 7803
Re: Computing alpha power
HI, You have the time based epoching, he make an epoch of your duration and if the interval is inferior of duration you avec a moving windows as you wan't. Thibaut PS : in your image it's better to make channel selector before temporal filter (to avoid apply temporal filter on all channel before sel...
- Mon Apr 19, 2021 10:00 am
- Forum: Scenarios and BCI design
- Topic: Clarification for output format - epochs
- Replies: 5
- Views: 13084
Re: Clarification for output format - epochs
Hello,
I just saw your files, I think you are receiving the stimulation from your EEG file while the epoch is not yet finished (received after 0.3s while the epoch duration is 0.6). Use a listener stimulation at the exit of your file to see if the stimulations are correctly "timed".
Thibaut
I just saw your files, I think you are receiving the stimulation from your EEG file while the epoch is not yet finished (received after 0.3s while the epoch duration is 0.6). Use a listener stimulation at the exit of your file to see if the stimulations are correctly "timed".
Thibaut
- Fri Apr 16, 2021 9:05 am
- Forum: Scenarios and BCI design
- Topic: Clarification for output format - epochs
- Replies: 5
- Views: 13084
Re: Clarification for output format - epochs
HI,
Can you link the scenario and the CSV file.
I'm not sure to understand
Thibaut
Can you link the scenario and the CSV file.
I'm not sure to understand
Thibaut
- Tue Apr 13, 2021 9:37 am
- Forum: Scenarios and BCI design
- Topic: Clarification for output format - epochs
- Replies: 5
- Views: 13084
Re: Clarification for output format - epochs
Hi, I'm not sure to understand all with the fragment of csv in example. For CSV Output you have column to help you but I can add informations, You have epochs but an epoch is not only an exact T time but for example a bloc of 1s and if you avec a 250Hz signal during one second you have 250 T time so...
- Tue Apr 13, 2021 9:23 am
- Forum: Designer
- Topic: Invoke Python Classifiers from OpenVibe
- Replies: 1
- Views: 6573
Re: Invoke Python Classifiers from OpenVibe
HI,
With the OV version 3.0.0 you have in contrib pybox boxes wich use sklearn classifier.
Thibaut
With the OV version 3.0.0 you have in contrib pybox boxes wich use sklearn classifier.
Thibaut
- Tue Apr 13, 2021 9:21 am
- Forum: Discussion about BCI and related topics
- Topic: A question about the “Epoch averaging” in BCI P300
- Replies: 2
- Views: 6646
Re: A question about the “Epoch averaging” in BCI P300
Hi, 1) 250Hz is 250 per seconds so 4ms is right. 3) I don't understand your parameter... Epoch average is here to set an epoch and an epoch with a time of 0 is not an epoch it's a classical sample, so you take only the sample by channel after 0.4s of your stimulation. If you wan't to take all the 0....
- Tue Apr 13, 2021 9:10 am
- Forum: Acquisition server and drivers
- Topic: Acquisition server and LSL with 2 different PC
- Replies: 4
- Views: 8013
Re: Acquisition server and LSL with 2 different PC
Hi, My First question is why 2 computer ? Basically if you need 2 computer because of computes power. One of them can have all acquisition (EEG and Marker) and the second the process. If it's impossible, To minimize ethernet communication your configuration with EEG and process in one computer and t...
- Mon Mar 29, 2021 1:42 pm
- Forum: Scenarios and BCI design
- Topic: motor-imagery-bci-1-acquisition.xml
- Replies: 7
- Views: 8213
Re: motor-imagery-bci-1-acquisition.xml
HI,
I have down some hello world game with Unity
See : viewtopic.php?p=16495#p16495
viewtopic.php?p=16511#p16511
Thibaut
I have down some hello world game with Unity
See : viewtopic.php?p=16495#p16495
viewtopic.php?p=16511#p16511
Thibaut
- Mon Mar 29, 2021 8:50 am
- Forum: Discussion about OpenViBE
- Topic: OpenVibe stop giving signal / timeout for OpenBCI hardware
- Replies: 1
- Views: 6041
Re: OpenVibe stop giving signal / timeout for OpenBCI hardware
Hi, If I understand weel, Your hardware shutdown (or other problem) the acquisition server is not perturbated by that and show a flat signal. The scenario doesn't recognize a timeout. For me it's normal you have a signal (wrong but present). If it is exceptional, I would take the part of letting the...
- Mon Mar 29, 2021 8:42 am
- Forum: Scenarios and BCI design
- Topic: motor-imagery-bci-1-acquisition.xml
- Replies: 7
- Views: 8213
Re: motor-imagery-bci-1-acquisition.xml
HI,
The acquisition scenario is used for..... acquisition^^, you train your classifier with the next scenario : train. An example eeg file is already set in this scenario
Thibaut
The acquisition scenario is used for..... acquisition^^, you train your classifier with the next scenario : train. An example eeg file is already set in this scenario
Thibaut
- Thu Mar 25, 2021 2:24 pm
- Forum: Acquisition server and drivers
- Topic: TCP TAGGING
- Replies: 15
- Views: 24498
Re: TCP TAGGING
Hi,
For the next release we don't have an exact date yet sorry^^
Thibaut
For the next release we don't have an exact date yet sorry^^
Thibaut
- Thu Mar 25, 2021 2:22 pm
- Forum: Box and application development
- Topic: Vertical Feedback Bar Graz Visualisation
- Replies: 1
- Views: 6253
Re: Vertical Feedback Bar Graz Visualisation
HI,
I haven't reed your complete message but since OpenViBE 3.0.0. I have added a box multimodal graz (a display with vertical bar and N class not fixed by 2). Maybe you can use it or you can see the code of this for your formula.
Thibaut
I haven't reed your complete message but since OpenViBE 3.0.0. I have added a box multimodal graz (a display with vertical bar and N class not fixed by 2). Maybe you can use it or you can see the code of this for your formula.
Thibaut
- Thu Mar 25, 2021 2:20 pm
- Forum: Scenarios and BCI design
- Topic: Displaying the CSP filter/pattern
- Replies: 1
- Views: 6062
Re: Displaying the CSP filter/pattern
Hello, To simplify the CSP allows to create a matrix which makes it possible to pass from a space of N dimension to M by maximizing the differences. The result following this matrix is a space of M fictitious electrodes from your N real electrodes. It is difficult in my opinion to just say these are...
- Mon Mar 22, 2021 10:27 am
- Forum: Acquisition server and drivers
- Topic: TCP TAGGING
- Replies: 15
- Views: 24498
Re: TCP TAGGING
Hi,
Now it's on development branch
THibaut
Now it's on development branch
THibaut
- Fri Mar 05, 2021 4:22 pm
- Forum: Help for building the software
- Topic: How and where is the build after Visual Studio 2013 Community building success
- Replies: 1
- Views: 6131
Re: How and where is the build after Visual Studio 2013 Community building success
HI,
You have to rerun the script build.cmd the build in visual studio is not the same (it's boring but soon changed)
Thibaut
You have to rerun the script build.cmd the build in visual studio is not the same (it's boring but soon changed)
Thibaut