METHOD AND SYSTEM FOR OPTICAL-INERTIAL TRACKING OF A MOBILE OBJECT Russian patent published in 2021 - IPC G01C21/00 H04N13/332 

FIELD: computing technology.

SUBSTANCE: invention relates to a method and system for reverse optical-inertial tracking of a mobile object. The method includes the following stages: (a) providing emission of light in the IR range by multiple markers; (b) by means of a first data processing apparatus, reading an image from an optical sensor physically connected with the mobile object, and identifying pixels corresponding to predetermined conditions in the read image; (c) based on the identified pixels, identifying images of the markers and determining the parameters of said images of the markers by means of the first data processing apparatus; (d) reading the data from at least one inertial sensor physically connected with the moving object by means of the first data processing apparatus; (e) forming a combined data stream containing the parameters of the images of the markers and the data from said at least one inertial sensor by means of the first data processing apparatus and transmitting a second communication apparatus by means of a first communication apparatus; (e) receiving the combined data stream by means of the second communication apparatus, and based thereon, determining the positioning data of the tracker in the coordinate system of the movement area of the mobile object by means of a second data processing apparatus; (g) validating the mathematical model of the trajectory of movement of the tracker by means of the second data processing apparatus; (h) based on the validated mathematical model of the trajectory of movement of the tracker, extrapolating the positioning data of the tracker to the extrapolation horizon by means of the second data processing apparatus.

EFFECT: creation of a VR/AR system capable of performing fast, secure and accurate tracking of users, including those making sharp movements with the limbs and fast movements of the body in a considerably large workspace with an area from several square metres in single-user systems to several tens or even several hundred square metres in multi-user systems.

75 cl, 24 dwg