I wonder if when talking about IMU's they should call it something different, like "9 degrees of measurement" or "9 degrees of sensing" since it's not freedom related to spatial movement. This particularly now that spatial tracking is being used more prominently in consumer technology.
On Sat, Oct 5, 2019 at 12:57 PM Stefan Schreiber <st...@mail.telepac.pt> wrote: > To avoid some potential confusion: > > Most modern IMU sensors are supposed to offer “9 degrees of freedom”. > > (Directional 3-axis information from accelerometer, gyroscope and > magnetometer.) > > If refering to tracking, you speak “just” of 3DoF (orientation) or 6 > DoF tracking (orientation + positional data). > > Further reading > > https://developers.google.com/vr/discover/degrees-of-freedom > > (for example) > > Best, > > Stefan > > P.S.: 9 or 10 degrees of freedom certainly sounds better than 6DoF... > > (Of course this is the raw sensor data before fusion, which probaby > will give 3DoF orientation data as result. It could be discussed if > quaternion orientation is 3DoF or 4DoF, though. If 4DoF, an OHTI 6DoF > pose would be rather 7DoF... I refuse to take part in the following > discussion about 7DoF tracking, which means once more: I’m out! 😉) > > - - - > > Citando Bo-Erik Sandholm <bosses...@gmail.com>: > > > The ohti Projects for a open headtracker has been slow but will hopefully > > > > be updated soon. > > > > It is only for so called 9 degrees of freedom, no position data only > > > > directional info with 2 degrees precision. > > > > > > > > Data is currently quaternions over serial communication to control the > > > > omnitone binaural decoder. > > > > The host software written in JavaScript could with a bit of help have > the > > > > added functionality to send OSC. > > > > There already exists a library to send OSC for JavaScript. > > > > > > > > Den tis 1 okt. 2019 13:11Hector Centeno <hcen...@gmail.com> skrev: > > > >> Hi Jack, > >> > >> > >> > >> Yes, I saw those Bose but inertial sensors won't work for precise > tracking. > >> > >> I've done a lot of arkit/arcore with phones and tablets and it works > great > >> > >> but I don't want to be looking through a screen with a 2D > representation of > >> > >> the world while experiencing a sound only environment (unless you > strap the > >> > >> device to headphones with the camera facing forward, but that would be > not > >> > >> very convenient). > >> > >> > >> > >> Cheers, > >> > >> > >> > >> Hector > >> > >> > >> > >> On Tue., Oct. 1, 2019, 4:18 a.m. jack reynolds, < > jackreynolds...@gmail.com > >> > >> > >> > >> wrote: > >> > >> > >> > >> The new Bose headphones have 6dof tracking, but the accelerometers are > >> > >> not > >> > >> terribly accurate, so they are more 3dof really, unless you implement > >> > >> ARKit > >> > >> or similar. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: < > https://mail.music.vt.edu/mailman/private/sursound/attachments/20191005/bf7c4261/attachment.html > > > _______________________________________________ > Sursound mailing list > Sursound@music.vt.edu > https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, > edit account or options, view archives and so on. > -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20191005/56e7e74d/attachment.html> _______________________________________________ Sursound mailing list Sursound@music.vt.edu https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here, edit account or options, view archives and so on.
