Image analysis – Applications – Target tracking or detecting
Patent
1995-04-03
1997-07-01
Johns, Andrew
Image analysis
Applications
Target tracking or detecting
382131, G06K 900
Patent
active
056446420
ABSTRACT:
Apparatus for gaze tracking an eye utilizing short coherence length interferometry, also known as optical coherence tomography ("OCT"). An embodiment of the present invention is an apparatus for gaze tracking an eye which includes: (a) an optical coherence tomography (OCT) apparatus; (b) a scanning apparatus for scanning across a predetermined portion of the eye with optical output from the OCT apparatus; (c) an analysis apparatus for analyzing detection signals output from the OCT apparatus to determine a location of a feature of the eye; (d) an illumination apparatus for producing a reflection of radiation from a cornea of the eye (corneal reflex); (e) a detection apparatus for determining a location of the corneal reflex; and (f) the analysis apparatus further includes an apparatus which is responsive to the location of the feature and to the location of the corneal reflex for gaze tracking.
REFERENCES:
patent: 4836670 (1989-06-01), Hutchinson
patent: 4950069 (1990-08-01), Hutchinson
patent: 5036347 (1991-07-01), Tsunekawa et al.
patent: 5204703 (1993-04-01), Hutchinson et al.
patent: 5214455 (1993-05-01), Penney et al.
patent: 5220361 (1993-06-01), Lehmer et al.
patent: 5231674 (1993-07-01), Cleveland et al.
patent: 5416317 (1995-05-01), Nishimura et al.
patent: 5481622 (1996-01-01), Gerhardt et al.
patent: 5491757 (1996-02-01), Lehmer et al.
"Methods & Designs Survey of eye movement recording methods" by L. R. Young and D. Sheena, Behavior Research Methods & Instrumentation, 1975, vol. 7(5), pp. 397-429.
"Eye Movement Analysis System Using Fundus Images" by H. Kawai, S. Tamura, K. Kani, and K. Kariya, Pattern Recognition, vol. 19, No. 1, 1986, pp. 77-83.
"Optical Coherence Tomography" by Huang et al., published in Science, 254, Nov. 22, 1991, pp. 1178-1181.
"Micron-Resolution Imaging of the Anterior Eye in Vivo with Optical Coherence Tomography" by J. A. Izatt, M. R. Hee, E. A. Swanson, C. P. Lin, D. Huang, J. S. Schuman, C. A. Puliafito, and J. G. Fujimoto, 1994, pp. 1-24.
"Micron-Resolution Ranging of Cornea Anterior Chamber by Optical Reflectometry" by D. Huang J. Wang, C. P. Lin, C. A. Puliafito, and J. G. Fujimoto, Lasers in Surgery and Medicine, vol. 11, 1991, pp. 419-425.
"Measurement of the axial eye length and retinal thickness by laser Doppler interferometry (LDI)" by C. K. Hitzenberger, A. F. Fercher, and M. Juchem, SPIE vol. 1423 Opthalmic Technologies, 1991, pp. 46-50.
"Measurement of corneal thickness by low-coherence interferometry" by C. K. Hitzenberger, Applied Optics, vol. 31, No. 31, Nov. 1, 992, pp. 6637-6642.
Carl Zeiss, Inc.
Einschlag Michael B.
Johns Andrew
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