Image processing apparatus

Details Image processing apparatus Image processing apparatus

2008-02-14

2009-12-01

Stultz, Jessica T (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

C359S376000, C351S240000

Reexamination Certificate

active

07625088

ABSTRACT:
A model eye that models the optical characteristics of a human eye and is endowed with a grayscale pattern on the ocular fundus model surface is stereographically photographed with a parallax via a stereo photographic optical system. Photographed images are processed to provide calibration data for correcting the shape distortions of the stereo photographic optical system. The calibration data is used to correct a distortion-affected shape data and parallax images obtained in stereographic photography of the actual ocular fundus of a subject's eye. The shape distortion-corrected parallax image is used for a three-dimensional measurement process and 3D display on a stereo monitor. This allows an accurate three-dimensional measurement to be carried out and an accurate fundus image to be produced. The examiner can accurately evaluate the stereo shape of the ocular fundus of the subject's eye.

REFERENCES:
patent: 5175616 (1992-12-01), Milgram et al.
patent: 5815314 (1998-09-01), Sudo
patent: 2007/0263923 (2007-11-01), Gienko et al.
patent: 2009/0180072 (2009-07-01), Suzuki

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