US 11,943,420 B2
Method and system for alignment of data
Jonas Högström, Danderyd (SE); and Erik Alsmyr, Danderyd (SE)
Assigned to Tobii AB, Danderyd (SE)
Filed by TOBII AB, Danderyd (SE)
Filed on Jun. 30, 2022, as Appl. No. 17/810,092.
Claims priority of application No. 2150848-6 (SE), filed on Jun. 30, 2021.
Prior Publication US 2023/0007224 A1, Jan. 5, 2023
Int. Cl. H04N 13/167 (2018.01); G06F 3/03 (2006.01); G06V 40/18 (2022.01); H04N 13/00 (2018.01)
CPC H04N 13/167 (2018.05) [G06F 3/0304 (2013.01); G06V 40/18 (2022.01); H04N 2013/0096 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of determining a temporal offset of data from two recording devices, the method comprising:
receiving a first data stream from a first recording device and a second data stream from a second recording device, wherein each of the first data stream and second data stream include data relating to an eye of the user, and wherein the first data stream and second data stream overlap temporally;
processing the first data stream to determine a first blink sequence of the user;
processing the second data stream to determine a second blink sequence of the user;
comparing the first blink sequence and the second blink sequence to detect a blink pattern present in both the first blink sequence and the second blink sequence, wherein the comparison is by way of determining a time between adjacent blinks in the first blink sequence and second blink sequence; and
determining a temporal offset of the first data stream and the second data stream by comparing respective positions of the blink pattern in the first data stream and the second data stream.