System and method for tracking eyeball motion
First Claim
Patent Images
1. A system for determining position and/or motion information related to an eyeball of an individual, the system comprising:
- a laser radar system that unambiguously determines a range and a Doppler velocity for each of one or more points on a surface of the eyeball for substantially the same point in time; and
a monitor module that determines information related to the position and/or the motion of the eyeball based at least in part on the ranges and the Doppler velocities determined by the laser radar system.
9 Assignments
0 Petitions
Accused Products
Abstract
Detecting position information related to a face, and more particularly to an eyeball in a face, using a detection and ranging system, such as a Radio Detection And Ranging (“RADAR”) system, or a Light Detection And Ranging (“LIDAR”) system. The position information may include a location of the eyeball, translational motion information related to the eyeball (e.g., displacement, velocity, acceleration, jerk, etc.), rotational motion information related to the eyeball (e.g., rotational displacement, rotational velocity, rotational acceleration, etc.) as the eyeball rotates within its socket.
87 Citations
20 Claims
-
1. A system for determining position and/or motion information related to an eyeball of an individual, the system comprising:
-
a laser radar system that unambiguously determines a range and a Doppler velocity for each of one or more points on a surface of the eyeball for substantially the same point in time; and a monitor module that determines information related to the position and/or the motion of the eyeball based at least in part on the ranges and the Doppler velocities determined by the laser radar system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method of determining information related to a position and/or motion of an eyeball of an individual, the method comprising:
-
determining, unambiguously, a range and a Doppler velocity for each of one or more points on a surface of the eyeball for the same point in time or substantially the same point in time; and determining information related to the position and/or the motion of the eyeball based at least in part on the determined ranges and Doppler velocities. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
-
18. A system for determining position and/or motion information related to an eyeball of an individual, the system comprising:
-
a laser radar system that determines at least a Doppler velocity of one or more points on a surface of the eyeball for substantially the same point in time; a video imaging system that captures video footage of an eye socket of the eyeball, wherein the monitor module determines the information related to the position and/or the motion of the eye socket at least in part based on processing the video footage of the eye socket captured by the video imaging system; and a monitor module that determines (i) information related to the motion of the eye socket at least in part based on processing the video footage of the eye socket captured by the video imaging system, and (ii) information related to the motion of the eyeball within the eye socket based at least in part on the Doppler velocities determined by the laser radar system and the information related to the motion of the eye socket. - View Dependent Claims (19)
-
-
20. A system for determining position and/or motion information related to an eyeball of an individual, the system comprising:
-
a laser radar system that unambiguously determines a range and a Doppler velocity for each of one or more points on a surface of the eyeball for substantially the same point in time, the laser radar system comprising; a first coherent laser radar section including; a laser source that generates a first laser beam, an interferometer that splits the first laser beam into a first target beam and a first local oscillator beam, and generates a first combined target beam from a first reflected portion of the first target beam that is reflected from one of the one or more points on the eyeball and the first local oscillator beam; a second coherent laser radar section including; a laser source that generates a second laser beam, and an interferometer that splits the second laser beam into a second target beam, incident on the target at the same location as the first target beam, and a second local oscillator beam, and generates a second combined target beam from a second reflected portion of the second target beam that is reflected from the one of the one or more points on the eyeball and the second local oscillator beam, and a processor that unambiguously determines the range and the Doppler velocity for each of the one of the one or more points on the surface of eyeball from the first combined target beam and the second combined target beam; and a monitor module that determines information related to the position and/or the motion of the eyeball based at least in part on the ranges and the Doppler velocities determined by the laser radar system.
-
Specification