Display device, display system and three-dimension display method
The disclosure discloses a display device, a display system and a three-dimension display method. The display device includes a display panel and at least one camera device arranged on the periphery of the display panel, where each of the at least one camera device includes at least two depth cameras, and a depth-of-field range of any one of the depth cameras does not fully overlap with depth-of-field ranges of the other depth cameras; and the display panel is configured to display a 3D image formed by processing image information captured by the at least one camera device.
1. A display device, comprising a display panel and at least one camera device arranged on a periphery of the display panel, wherein:
each of the at least one camera device comprises at least two depth cameras, and a depth-of-field range of any one of the depth cameras does not fully overlap with depth-of-field ranges of the other depth cameras; and
the display panel is configured to display a 3D image which is formed by processing image information captured by the at least one camera device;
wherein the display panel is a rectangular display panel, and the at least one camera device is arranged on two longer sides of the display panel; and
an angle of view of each camera device satisfies a relationship of:
FOV≥2 arctan( a /√{square root over (2)} h );
wherein FOV is the angle of view of the camera device, h is a near depth-of-field of the camera device, and a is a length of a shorter side of the display device.
2. The display device according to claim 1 , wherein the camera device further comprises a light emitter adjacent to each of the depth cameras;
the light emitter is configured to emit light at a preset wavelength to an object; and
each of the depth cameras is configured to photograph the object, and to receive the light at the preset length reflected by the object to obtain the image information.
3. The display device according to claim 2 , wherein the depth cameras in the same camera device share one light emitter.
4. The display device according to claim 3 , wherein exposure times of the depth cameras in the same camera device do not overlap with each other.
5. The display device according to claim 3 , wherein exposure intensities as needed for the depth cameras in the same camera device increase with the growing depth-of-field ranges of the depth cameras; and
emission intensity of the light emitter increases with the growing depth-of-field ranges of the depth cameras.
6. The display device according to claim 3 , wherein the camera device comprises a plurality of depth cameras arranged around the light emitter.
7. The display device according to claim 1 , wherein the number of camera devices arranged on either longer side of the display panel is an integer more than or equal to b/a;
wherein b is a length of a longer side of the display panel, and a is the length of a shorter side of the display panel.
8. The display device according to claim 1 , wherein an angle between a dominant optical axis of each of two camera devices on two ends of either longer side of the display panel and the longer side is preset.
9. The display device according to claim 8 , wherein the angles of views of the camera devices arranged on either longer side of the display panel are superposed to result in a coverage range of 180 degrees or more.
10. The display device according to claim 1 , wherein each camera device further comprises at least one wide-angle camera.
11. A three-dimension display method based upon the display device according to claim 1 , the method comprising:
photographing, by the depth cameras in the at least one camera device, an object to obtain image information;
processing the image information to obtain the 3D image, and transmitting the 3D image to the display panel; and
displaying, by the display panel, the 3D image;
wherein the display panel is a rectangular display panel, and the at least one camera device is arranged on two longer sides of the display panel; and
an angle of view of each camera device satisfies a relationship of:
FOV≥2 arctan( a /√{square root over (2)} h );
wherein FOV is the angle of view of the camera device, h is a near depth-of-field of the camera device, and a is a length of a shorter side of the display device.
12. The method according to claim 11 , wherein the camera device further comprises a light emitter adjacent to each of the depth cameras; and
the step of photographing comprises:
driving the light emitter in a time division mode in a descending order of emission intensities according to preset timing to emit a light beam at a preset wavelength to the object, and driving the depth cameras in the at least one camera device in sequence in a descending order of their depths of fields to photograph the object.
13. The method according to claim 11 , wherein the camera device further comprises at least one wide-angle camera; and
the step of photographing comprises:
photographing, by the at least one wide-angle camera, the object;
analyzing image information captured by the at least one wide-angle camera, and determining a positional range of the object; and
driving the depth camera corresponding to the positional range according to the positional range to photograph the object.
14. A display system, comprising a display device and a processor, wherein:
the display device comprises a display panel and at least one camera device arranged on a periphery of the display panel, wherein:
each of the at least one camera device comprises at least two depth cameras, and a depth-of-field range of any one of the depth cameras does not fully overlap with depth-of-field ranges of the other depth cameras;
the processor is configured to receive image information captured by the at least one camera device in the display device, to process the image information to obtain a 3D image, and to transmit the 3D image to the display panel;
the display panel is configured to display the 3D image;
wherein the display panel is a rectangular display panel, and the at least one camera device is arranged on two longer sides of the display panel; and
an angle of view of each camera device satisfies a relationship of:
FOV≥2 arctan( a /√{square root over (2)} h );
wherein FOV is the angle of view of the camera device, h is a near depth-of-field of the camera device, and a is a length of a shorter side of the display device.
15. The display system according to claim 14 , wherein the camera device further comprises a light emitter adjacent to each of the depth cameras;
the light emitter is configured to emit light at a preset wavelength to an object; and
each of the depth cameras is configured to photograph the object, and to receive the light at the preset length reflected by the object to obtain the image information.
16. The display system according to claim 15 , wherein the depth cameras in the same camera device share one light emitter.
17. The display system according to claim 16 , wherein exposure times of the depth cameras in the same camera device do not overlap with each other.
18. The display system according to claim 16 , wherein exposure intensities as needed for the depth cameras in the same camera device increase with the growing depth-of-field ranges of the depth cameras; and
emission intensity of the light emitter increases with the growing depth-of-field ranges of the depth cameras.
19. The display system according to claim 16 , wherein the camera device comprises a plurality of depth cameras arranged around the light emitter.