Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2006-05-02
2006-05-02
Frejd, Russell (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S006000, C351S200000
Reexamination Certificate
active
07039563
ABSTRACT:
A method and apparatus for simulating an ocular optical system that enables simulating visual perception having fluctuation, distortion and blur in the use of spectacle lenses such as progressive addition lenses. A binocular synkinetic rotation-based retinal image is created, defined as an image obtained by rotating both eyeballs toward each object point in a visual field, then, uniting images projected on the foveae of right and left eyes and to produce a united image. An original image is created wherein the midpoint of binocular rotation is placed at a specific position, and objects within a specific pyramidal visual field are observed. A distorted original image is obtained by observing the visual field through spectacle lenses using the ray tracing method. Point Spread Functions (PSF's) are derived, wherein right and left monocular PSF's are obtained and a united binocular PSF is derived from both monocular PSF's. Visual perception through spectacle lenses is simulated by convoluting of the distorted original image and the united binocular PSFs with respect to each pixel of the original image.
REFERENCES:
patent: 5583795 (1996-12-01), Smyth
patent: 5726916 (1998-03-01), Smyth
patent: 5734421 (1998-03-01), Maguire, Jr.
patent: 6181371 (2001-01-01), Maguire, Jr.
patent: 6186626 (2001-02-01), Francois et al.
patent: 0 734 683 (1996-10-01), None
patent: 0 950 887 (1999-10-01), None
patent: 1 018 691 (2000-07-01), None
Dubois et al., Simulator for Laser Photocoagulation in Ophthalmology, IEEE Transactions on Biomedical Engineering, vol. 42, No. 7, Jul. 1995, pp. 688-693.
Robert et al., An Image Filtering Process Based on Foveal Mechanism Simulation, Conference Record of the 31stasilomar Conference on Signals, Systems & Computers, vol. 2, Nov. 1997, pp. 1725-1729.
Sanghoon et al., Foveated Video Image Analysis and Compression Gain Measurements, 4th IEEE Southwest Symposium on Image Analysis and Interpolation, Apr. 2000, pp. 63-67.
Cha et al., Simulation of a Phosphene Field Based Visual Prosthesis, IEEE Int. Conference on Systems, Man and Cyberntics, Nov. 1990, pp. 921-923.
European Search Report dated Feb. 17, 2003 for European Application No. EP 01 11 2284.
Frejd Russell
Griffin & Szipl, P.C.
Hoya Corporation
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