Motion sickness reduction
First Claim
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1. A method for adjusting a motion sickness reduction device comprising:
- observing from a vehicle an apparent size of an external object outside said vehicle and an apparent size of an image of said object on a display device within said vehicle from a perspective of a viewer;
adjusting said image of said object on said display device to substantially equalize said apparent size of said external object and said apparent size of said image of said object into a relationship such that said viewer would perceive substantially the same image if visible directly or via said display screen; and
periodically further adjusting said image size of said object on said display device to maintain said relationship.
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Abstract
A motion sickness reduction device includes an image capture device for capturing an image device environment and an image display device for displaying image related to the captured image. In order to effectively prevent or reduce motion sickness, the right amount of motion must be displayed on the image display device when the vehicle accelerates or turns. Various methods are disclosed for adjusting the image on the display device and/or the angle of the environment subtended to make the motion sickness reduction device effective.
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Citations
13 Claims
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1. A method for adjusting a motion sickness reduction device comprising:
- observing from a vehicle an apparent size of an external object outside said vehicle and an apparent size of an image of said object on a display device within said vehicle from a perspective of a viewer;
adjusting said image of said object on said display device to substantially equalize said apparent size of said external object and said apparent size of said image of said object into a relationship such that said viewer would perceive substantially the same image if visible directly or via said display screen; and periodically further adjusting said image size of said object on said display device to maintain said relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- observing from a vehicle an apparent size of an external object outside said vehicle and an apparent size of an image of said object on a display device within said vehicle from a perspective of a viewer;
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9. A method of adjusting a motion sickness reduction system comprising:
providing an image signal from a video camera to a display screen, said video camera having an effective viewing angle, positioning a display screen of said system in spatial relation to a user of said display screen and in spatial relation an external landmark according to the formula;
Effective Viewing Angle of the Video Camera=2*arctan (w*(y+d)/(2*x*d)), wherein d represents a distance between said video camera and said external landmark, y represents a distance between said video camera and said user, x represents a distance between said display screen and said user, and w represents a dimension of said display screen.- View Dependent Claims (10, 11, 12, 13)
Specification