FAQ
What do I have to prepare for remote support session?
Please check with the folloring list if you have everything ready for the remote session with Vioso expert.
1. Workstation
your hardware configuration meets system requirements.
your PC is connected to the Internet
2. Projectors
number projectors according to your installation have to be ON and connected to the PC (or PCs)
Projectors are installed, focused and display image.
the have sufficient overlap (15-20%)
3. Camera
all drivers are installed
camera is checked and works (see here Camera)
6. Vioso Software
download and install it from here http://vioso.com/downloads.php
make sure the software is running without major issues like expired license, wron hardware, etc.
7. Teamviewer Software
Download and install the last version of the Teamviewer from here https://www.teamviewer.com
8. Teams or telephone for live talk
Microsoft Teams is our preferred option for live voice talk. It is better to have it on a separate PC (laptop/tablet/smartphone).
Provide us with your e-mail address prior to the session, so that we can do the approvement in time
9. Prepare the setup
In order to have a maximum productive session, please prepare as much as you can: dim the room light, start the projectors, align them on the screen, etc.
If you have issues, please prepare the system to demonstrate the issues
Content is king! Everything we do is depending on the final content, so make sure that the content is available (original, preview, etc.)
How to make best calibration conditions?
Before starting a camera based calibration consider following conditions for successful scanning:
Reduce ambient light. The less ambient light you have the better scanning quality you will get. Turn of the light, close windows etc
Adjust your camera properly. For more details and guidelines check the Vioso Calibrator manual.
Camera and projectors must not be moved or shaked during the scanning process
Avoid any interruption by external influences (person in front of the camera or between projector and surface)
Check if your camera and projectors are focused (But don’t use auto-focus!)
Provide sufficient projectors overlap.
How to deal with projector overlaps in black contents
Black level is something that can only be compensated and made “invisible” by raising the overall black level of all projectors to the level of the maximum overlap for the entire projection, which basically can be the sum of remaining light levels of 2, 3, or 4 overlapping projectors, depending on the setup. Of course, this reduces the overall contrast ratio of the content significantly.
While our software allows to adjust (raise) the black level of all regions that are NOT overlapped, it may not produce perfect results in totally dark environments since there will still be lighter and darker regions visible to the trained eye.
In this case — from practical experience — we recommend taking additional measures. You will get good results using some sort of mechanical shutter plates to soften the hard edges of the rectangular projector outputs a little, or by raising the environmental light level to get that up to the black level. Both actions will help to hide the hard edges of the projection fields.
From a psychological point of view, these rectangles are the most vivid and first characteristic mark that the human eye will “lock onto” to identify the overlap areas. Second, they will recognize the different black levels.
Does VIOSO 6 support NDI
Yes, NDI is available in VIOSO 6 for two purposes:
Use NDI streamed camera images for calibration: NDI streams can be selected in the device selection for scanning projectors.
Display NDI on calibrated outputs: See Integrated Videoplayer for more details
Calibrate via NDI: if projectors are exposed as NDI stream, VIOSO 6 can utilize this steam and send calibration patterns via NDI. As this is a special configuration, please contact us for further information.
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