Distance adaptive holographic displaying method and device based on eyeball tracking
First Claim
1. A distance adaptive holographic displaying method based on eyeball tracking, the distance adaptive holographic displaying method applied in a distance adaptive holographic displaying device comprising a camera and a distance meter;
- the distance adaptive holographic displaying method comprising the following steps of;
controlling the camera to track change of positions of eyes of a user, moving the distance meter together with the camera to measure a distance between the eyes and the distance meter, and calculating a distance between the eyes and a displaying screen of the device;
adjusting the size of an object in a holographic scene along a z-axis direction in the holographic three-dimensional display according to the distance between the eyes and the displaying screen, adjusting viewpoints of different individual holographic three-dimensional images that need to be projected into a left eye and a right eye of the eyes according to the size of the object in the holographic scene along the z-axis direction, and displaying the viewpoints in the displaying screen;
adjusting an emergent direction of the light emitted by the displaying screen to the direction of the left eye and the right eye of the eyes so that the different individual holographic three-dimensional images of the left eye and the right eye are imaged into the left eye and the right eye respectively; and
tracking the change of the positions of the eyes, and repeating the aforesaid steps to dynamically acquire the different individual holographic three-dimensional images of the left eye and the right eye so that, when the eyes are moving, the left eye and the right eye can always acquire individual holographic three-dimensional images having the correct viewpoints of the holographic three-dimensional display and of the size of the object in the holographic scene along the z-axis direction;
wherein if the distance between the eyes and the displaying screen is smaller than a first threshold value, the size of the object in the holographic scene is not enlarged along the z-axis direction; and
if the distance between the eyes and the display screen is larger than a second threshold value, the size of the object in the holographic scene is not reduced along the z-axis direction.
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Accused Products
Abstract
A distance adaptive holographic displaying method and device based on eyeball tracking are disclosed. The method includes: detecting a human face of a user and acquiring positions of eyes of the user, wherein the positions of the eyes of the user comprise a distance between the eyes and a displaying screen; adjusting the size of an object in a holographic scene along a z-axis direction in the holographic three-dimensional display according to the distance, and displaying the object in the displaying screen; adjusting an emergent direction of the light emitted by the displaying screen to the direction of the left eye and the right eye of the eyes so that the different individual holographic three-dimensional images of the left eye and the right eye are imaged into the left eye and the right eye respectively; and tracking the change of the positions of the eyes, and repeating the aforesaid steps to dynamically adjust viewpoints and the displayed content. The present disclosure can adapt to different groups of people at different distances and conform to the visual principle of human beings, thereby improving user experiences.
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Citations
10 Claims
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1. A distance adaptive holographic displaying method based on eyeball tracking, the distance adaptive holographic displaying method applied in a distance adaptive holographic displaying device comprising a camera and a distance meter;
- the distance adaptive holographic displaying method comprising the following steps of;
controlling the camera to track change of positions of eyes of a user, moving the distance meter together with the camera to measure a distance between the eyes and the distance meter, and calculating a distance between the eyes and a displaying screen of the device; adjusting the size of an object in a holographic scene along a z-axis direction in the holographic three-dimensional display according to the distance between the eyes and the displaying screen, adjusting viewpoints of different individual holographic three-dimensional images that need to be projected into a left eye and a right eye of the eyes according to the size of the object in the holographic scene along the z-axis direction, and displaying the viewpoints in the displaying screen; adjusting an emergent direction of the light emitted by the displaying screen to the direction of the left eye and the right eye of the eyes so that the different individual holographic three-dimensional images of the left eye and the right eye are imaged into the left eye and the right eye respectively; and tracking the change of the positions of the eyes, and repeating the aforesaid steps to dynamically acquire the different individual holographic three-dimensional images of the left eye and the right eye so that, when the eyes are moving, the left eye and the right eye can always acquire individual holographic three-dimensional images having the correct viewpoints of the holographic three-dimensional display and of the size of the object in the holographic scene along the z-axis direction; wherein if the distance between the eyes and the displaying screen is smaller than a first threshold value, the size of the object in the holographic scene is not enlarged along the z-axis direction; and
if the distance between the eyes and the display screen is larger than a second threshold value, the size of the object in the holographic scene is not reduced along the z-axis direction. - View Dependent Claims (2, 3, 4, 5)
- the distance adaptive holographic displaying method comprising the following steps of;
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6. A distance adaptive holographic displaying device based on eyeball tracking, comprising:
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a camera, controlled to track change of positions of eyes of a user; a distance meter, moved together with the camera to measure a distance between the eyes and the distance meter for a calculation of a distance between the eyes and the displaying screen of the displaying device; a displaying module, being configured to adjust the size of an object in a holographic scene along a z-axis direction in the holographic three-dimensional display according to the distance, to adjust viewpoints of different individual holographic three-dimensional images that need to be projected into a left eye and a right eye of the eyes according to the size of the object in the holographic scene along the z-axis direction, and to display the viewpoints in the displaying screen; and an adjusting module, being configured to adjust an emergent direction of the light emitted by the displaying screen to the direction of the left eye and the right eye of the eyes so that the different individual holographic three-dimensional images of the left eye and the right eye are imaged into the left eye and the right eye respectively; wherein the displaying module adjusts the different individual holographic three-dimensional images of the left eye and the right eye dynamically so that, when the eyes are moving, the left eye and the right eye can always acquire individual holographic three-dimensional images having the correct viewpoints of the holographic three-dimensional display and of the size of the object in the holographic scene along the z-axis direction by means of the adjusting module; wherein if the distance between the eyes and the displaying screen is smaller than a first threshold value, the displaying module does not enlarge the size of the object in the holographic scene along the z-axis direction; and
if the distance between the eyes and the displaying screen is larger than a second threshold value, the displaying module does not reduce the size of the object in the holographic scene. - View Dependent Claims (7, 8, 9, 10)
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Specification