Portable video oculography system with integral calibration light
First Claim
1. A video oculography system comprising:
- a light-weight head mounted base adapted to be attached to a patient'"'"'s head;
at least one digital camera attached to the base configured to obtain video images of one of the patient'"'"'s eyes and configured to operate at a speeds of at least 30 hz;
a controller coupled to each camera configured to store images of the patient'"'"'s eye obtained by the camera and configured to selectively play back data from cameras for the clinician and configured to calculate eye movement from the images of the patient'"'"'s eye obtained by the camera wherein the eye moment calculation includes calculation of eye movement in an X direction, a Y direction orthogonal to the X direction and torsional movement of the eye; and
a light source attached to the base, wherein the light source is directed away from the patient'"'"'s eye and visible to the clinician while the patient is wearing the head mounted base.
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Accused Products
Abstract
A goggle based light-weight VOG system includes an integral calibration laser and at least one digital camera connected to and powered by a laptop computer through a firewire connection. The digital camera may digitally center the pupil in both the X and Y directions. A calibration mechanism may be incorporated onto the goggle base. An EOG system may also be incorporated directly into the goggle. The VOG system may track and record 3-D movement of the eye, track pupil dilation, head position and goggle slippage. An animated eye display provides data in a more meaningful fashion. The VOG system is a modular design whereby the same goggle frame or base is used to build a variety of digital camera VOG systems.
106 Citations
19 Claims
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1. A video oculography system comprising:
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a light-weight head mounted base adapted to be attached to a patient'"'"'s head; at least one digital camera attached to the base configured to obtain video images of one of the patient'"'"'s eyes and configured to operate at a speeds of at least 30 hz; a controller coupled to each camera configured to store images of the patient'"'"'s eye obtained by the camera and configured to selectively play back data from cameras for the clinician and configured to calculate eye movement from the images of the patient'"'"'s eye obtained by the camera wherein the eye moment calculation includes calculation of eye movement in an X direction, a Y direction orthogonal to the X direction and torsional movement of the eye; and a light source attached to the base, wherein the light source is directed away from the patient'"'"'s eye and visible to the clinician while the patient is wearing the head mounted base. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A video oculography system comprising:
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a light-weight head mounted base adapted to be attached to a patient'"'"'s head; at least one camera attached to the base and configured to obtain images of one of the patient'"'"'s eyes and configured to operate at a speeds of at least 30 hz; a controller coupled to the at least one camera, the controller providing power and control signals to each camera and receiving and storing data signals there from and configured to selectively play back data from cameras for the clinician and configured to calculate eye movement from the data signals of the patient'"'"'s eye obtained by the camera wherein the eye moment calculation includes calculation of eye movement in an X direction, a Y direction orthogonal to the X direction and torsional movement of the eye; and a laser attached to the base, wherein the laser is directed away from the patient'"'"'s eye and visible to the clinician while the patient is wearing the head mounted base. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A modular video oculography system comprising:
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a light-weight head mounted goggle base adapted to be attached to a patient'"'"'s head; at least one camera selectively attached to the base forming an occluded environment around a patients eye and configured to operate in the occluded environment and configured to obtain images of one of the patient'"'"'s eyes and configured to operate at a speeds of at least 30 hz; a controller coupled to the at least one camera, the controller providing power and control signals to each camera and receiving and storing data signals there from and configured to selectively play back data from cameras for the clinician and configured to calculate eye movement from the data signals of the patient'"'"'s eye obtained by the camera wherein the eye moment calculation includes calculation of eye movement in an X direction, a Y direction orthogonal to the X direction and torsional movement of the eye; and a laser attached to the base, wherein the laser is directed away from the patient to be visible to the clinician while the patient is wearing the head mounted base. - View Dependent Claims (19)
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Specification