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 and the image signal for the right 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.
59 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 and the image signal for the right 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 and the image signal for the right eye. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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Specification