Three-dimensional display device and method using hybrid position-tracking system
First Claim
1. A three-dimensional (3D) display device comprising:
- a main body;
a display which displays a 3D image;
a camera which is mounted in the main body;
a gyroscope which is mounted in the main body and senses a change in an angular velocity of the display;
a calculation unit which calculates a first relative posture change amount of the display with respect to a viewing position based on an image of a user photographed by the camera and calculates a second relative posture change amount of the display with respect to the viewing position based on the change in the angular velocity sensed by the gyroscope; and
a Kalman filter which receives the first and second relative posture change amounts calculated by the calculation unit and calculates a corrected posture change amount of the display,wherein when a relative position between the user and the display is changed, a user is able to view an image signal for a left eye and an image signal for a right eye in viewing regions where a right eye and a left eye of the user are positioned, respectively, without conversion of the image signal for the left eye to the image signal for the right eye, and the image signal for the right eye to the image signal for the left eye.
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Abstract
A 3D display device and method using a hybrid position-tracking system is provided, along with a method for displaying the 3D image. The 3D display device includes a main body, a display, a camera, a first calculation part, a gyroscope, a second calculation part, and a Kalman filter. The display provides a 3D image and the first calculation part calculates a relative posture change of the display with respect to a viewing position on the basis of the image photographed by the camera. The gyroscope is mounted in the main body to sense a change in an angular velocity of the display. The second calculation part calculates a relative posture change of the display and the Kalman filter receives the calculation results obtained by the first and second calculation parts to calculate a corrected-posture-change amount of the display.
20 Citations
17 Claims
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1. A three-dimensional (3D) display device comprising:
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a main body; a display which displays a 3D image; a camera which is mounted in the main body; a gyroscope which is mounted in the main body and senses a change in an angular velocity of the display; a calculation unit which calculates a first relative posture change amount of the display with respect to a viewing position based on an image of a user photographed by the camera and calculates a second relative posture change amount of the display with respect to the viewing position based on the change in the angular velocity sensed by the gyroscope; and a Kalman filter which receives the first and second relative posture change amounts calculated by the calculation unit and calculates a corrected posture change amount of the display, wherein when a relative position between the user and the display is changed, a user is able to view an image signal for a left eye and an image signal for a right eye in viewing regions where a right eye and a left eye of the user are positioned, respectively, without conversion of the image signal for the left eye to the image signal for the right eye, and the image signal for the right eye to the image signal for the left eye. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for displaying a three-dimensional (3D) image, the method comprising:
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calculating a first posture change amount of a display of a 3D display device with respect to a viewing position based on an image of a user photographed by a camera of the 3D display device; calculating a second posture change amount of the display with respect to the viewing position based on a change in an angular velocity of the display sensed by a gyroscope of the 3D display device; calculating a corrected posture change amount of the display in a Kalman filter of the 3D display device based upon the first and second relative posture amounts which are calculated; wherein when a relative position between a user and the display is changed, a user is able to view an image signal for a left eye and an image signal for a right eye in viewing regions where a right eye and a left eye of the user are positioned, respectively, without conversion of the image signal for the left eye to the image signal for the right eye, and the image signal for the right eye to the image signal for the left eye. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification