Patents Assigned to ALT LLC
  • Patent number: 10949980
    Abstract: Method and system for tracking a moving object may be used in virtual or augmented reality systems, in-site logistics systems, robotics systems and control systems of unmanned moving objects. The method of tracking includes a step of automatic adjusting a tracking area by detection and registration of unique combinations of elementary optical patterns, and a step of tracking change in position and/or orientation of a moving object by detection of unique combinations of elementary optical patterns and comparison thereof with the unique combinations of elementary optical patterns registered during the tracking area adjustment. The system for tracking a moving object comprises at least one tracker located on a moving object the tracker including an optical sensor, at least one marker strip including active markers forming elementary optical patterns in a picture obtained from the optical sensor, and a central processing unit.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: March 16, 2021
    Assignee: ALT LLC
    Inventor: Petr Vyacheslavovich Sevostianov
  • Patent number: 10481679
    Abstract: Method for inside-out optical-inertial tracking of a movable object includes providing IR light by a plurality of markers; reading a picture from an optical sensor and detecting pixels satisfying predefined conditions by a first data processing device; detecting marker blobs, based on the pixels, and determining parameters of the blobs by the first data processing device; reading data from an inertial sensor; generating a consolidated data flow comprising the parameters of the marker blobs and the data of the inertial sensor by the first data processing device, and transmitting the data flow to a second communication device; determining a tracker positioning data in a coordinate system of a motion area of the object, based on the consolidated data flow, by a second data processing device; validating a model of a tracker motion path, based on tracker positioning data; extrapolating tracker positioning data onto an extrapolation horizon, based on the model.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 19, 2019
    Assignee: ALT LLC
    Inventor: Petr Vyacheslavovich Sevostianov
  • Patent number: 10187635
    Abstract: A system for displaying three-dimensional objects using two-dimensional visualization means simultaneously providing at least effects of binocular parallax and motion parallax, the system comprising: a display configured to display a sequence of images; a pair of glasses configured to provide stereoscopic separation of images, the glasses comprising at least two optical shutters and at least two markers; two optical sensor arrays; two reading and processing devices configured to read data from an area of the optical sensor array and to determine 2D coordinates of the markers; a marker coordinates prediction device configured to extrapolate coordinates of the markers so as effective overall delay does not exceed 5 ms; a marker 3D coordinates calculation device; a 3D scene formation device; and at least one image output device. The invention also includes a corresponding method of displaying three-dimensional objects and provides realistic representation of three-dimensional objects for one or more viewers.
    Type: Grant
    Filed: December 31, 2014
    Date of Patent: January 22, 2019
    Assignee: ALT LLC
    Inventor: Petr Vyacheslavovich Sevostianov