US 12,326,969 B1
Tracking accuracy with head pose prediction
Mikko Strandborg, Hangonkylä (FI); Urho Konttori, Helsinki (FI); and Thomas Carlsson, Vantaa (FI)
Assigned to Distance Technologies Oy, Helsinki (FI)
Filed by Distance Technologies Oy, Helsinki (FI)
Filed on Apr. 9, 2024, as Appl. No. 18/630,154.
Int. Cl. G06F 3/01 (2006.01); G09G 3/00 (2006.01); H04N 23/20 (2023.01); G02B 27/01 (2006.01)
CPC G06F 3/012 (2013.01) [G06F 3/013 (2013.01); G09G 3/001 (2013.01); H04N 23/20 (2023.01); G02B 27/0101 (2013.01); G02B 2027/0187 (2013.01); G09G 2340/0435 (2013.01); G09G 2354/00 (2013.01); G09G 2380/10 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A system comprising:
tracking means;
at least one sensor employed to sense at least one of: an acceleration, an orientation of a vehicle; and
at least one processor configured to:
utilise the tracking means to track a position and an orientation of a head of at least one user sitting inside the vehicle;
determine a vehicular acceleration signal for a first time period, based on the at least one of: the acceleration, the orientation of the vehicle sensed during the first time period, wherein the vehicular acceleration signal is indicative of a change in the at least one of: the acceleration, the orientation of the vehicle;
apply at least one transformation to the vehicular acceleration signal to generate a head acceleration signal for a second time period, wherein the head acceleration signal is indicative of a change in at least one of: an acceleration, the orientation of the head of the at least one user;
determine an expected head movement of the at least one user, based on the head acceleration signal; and
refine the position and the orientation of the head of the at least one user being tracked by utilising the tracking means, based on the expected head movement;
wherein the at least one processor is configured to generate the at least one transformation based on at least one of:
a simulation model of a user sitting inside the vehicle,
a biomechanical model of a head, a neck, a spine and a posterior part of a human.