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US 8,955,973 B2Granted
Method and system for input detection using structured light projection
AssigneeGoogle Inc.
InventorsHayes Solos Raffle, Thad Eugene Starner, Josh Weaver, Edward Allen Keyes
Life of this patent
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Abstract
Exemplary methods and systems help provide for tracking an eye. An exemplary method may involve: causing the projection of a pattern onto an eye, wherein the pattern comprises at least one line, and receiving data regarding deformation of the at least one line of the pattern. The method further includes correlating the data to iris, sclera, and pupil orientation to determine a position of the eye, and causing an item on a display to move in correlation with the eye position.
Claims16
A method comprising:
- a light projector projecting a pattern of light onto an eye, wherein the pattern comprises at least one line;
- receiving data regarding a first deformation of the at least one line of the pattern at a first time, wherein the first deformation of the at least one line comprises the line bowing outward when projected over the sclera or the line bowing inward when projected over the iris;
- receiving data regarding a second deformation of the at least one line of the pattern at a second time that is subsequent to the first time, wherein the second deformation of the at least one line of the pattern comprises the line bowing outward relative to the first deformation of the at least one line or the line bowing inward relative to the first deformation of the at least one line;
- and
- correlating the data to at least one of iris, sclera, and pupil orientation to determine a position of the eye.
2 more elements
A system comprising:
- a non-transitory computer-readable medium;
- and
- program instructions stored on the non-transitory computer-readable medium which, when executed by at least one processor, cause the system to:
- cause a light projector to project a pattern of light onto an eye, wherein the pattern comprises at least one line;
- receive data regarding a first deformation of the at least one line of the pattern at a first time, wherein the first deformation of the at least one line comprises the line bowing outward when projected over the sclera or the line bowing inward when projected over the iris;
- receive data regarding a second deformation of the at least one line of the pattern at a second time that is subsequent to the first time, wherein the second deformation of the at least one line of the pattern comprises the line bowing outward relative to the first deformation of the at least one line or the line bowing inward relative to the first deformation of the at least one line;
- correlate the data to iris, sclera, and pupil orientation to determine the position of the eye;
- and
- cause an item on a display to move in correlation with the eye position.
6 more elements
A method comprising:
- a light projector projecting a pattern of light onto an eye, wherein the pattern comprises at least one line;
- receiving data regarding a first deformation of the at least one line of the pattern at a first time, wherein the first deformation of the at least one line comprises the line bowing outward when projected over the sclera or the line bowing inward when projected over the iris;
- receiving data regarding a second deformation of the at least one line of the pattern at a second time that is subsequent to the first time, wherein the second deformation of the at least one line of the pattern comprises the line bowing outward relative to the first deformation of the at least one line or the line bowing inward relative to the first deformation of the at least one line;
- correlating the data to iris, sclera, and pupil orientation, combined with eye dynamics, to determine a position of the eye;
- and
- causing an item on a display to move in correlation with the position.
3 more elements
Dependencies are inferred from the claim text.