[IGSTK-Users] NDI Polaris Spectra - max refresh rate

[Yaniv, Ziv Rafael (NIH/NLM/LHC) [C]]

Hi Dominique,

It should be possible to obtain a refresh rate of ~60Hz:
1. Always run in release mode, debug mode slows everything down and introduces a lot of timing issues.
2. If you are on windows then please stop/disable as many services as you can. These are automatically running in the background and our experience has been that they degrade the tracking rate performance. We tested this a couple years ago and our results showed a bimodal distribution of the refresh rate around the rate we set (we did not encounter this on linux - was unimodal with mean/median at approximately the refresh rate we set).

       hope this helps
                Ziv

--
Ziv Yaniv, PhD,
Senior Scientist,
Office of High Performance Computing and Communications
National Library of Medicine
National Institutes of Health
Bldg. 38A, Room B1N30D
8600 Rockville Pike,
Bethesda, MD, 20894
Phone:+1-301-435-6633
Email: zivyaniv at nih.gov<mailto:zivyaniv at nih.gov>


From: Dominique Maier <dominique-maier at hotmail.com<mailto:dominique-maier at hotmail.com>>
Date: Friday, March 13, 2015 at 11:32 AM
To: "igstk-users at public.kitware.com<mailto:igstk-users at public.kitware.com>" <igstk-users at public.kitware.com<mailto:igstk-users at public.kitware.com>>
Subject: [IGSTK-Users] NDI Polaris Spectra - max refresh rate

Hello!

The NDI Polaris Spectra has a maximum refresh rate of 60 Hz. I tried to readout the Polaris Spectra with the IGSTK TrackerDataLogger (it's one of the example projects) at maximum refresh rate. Unfortunately the achieved refresh rate is about 29 Hz instead of 60 Hz. Is it not possible to achieve a refresh rate of 60 Hz with IGSTK? Is the data acquisition to slow, because I used the debug-version of IGSKT?

Best regards,
Dominique