LIGHT FIELD DISPLAY CONTROL METHODS AND APPARATUSES, LIGHT FIELD DISPLAY DEVICES

• US 20170372683A1
• Filed: 06/26/2017
• Published: 12/28/2017
• Est. Priority Date: 12/29/2014
• Status: Active Grant

• Current Assignee: Beijing Zhigu RUI TUO Tech Company Limited
• Original Assignee: Beijing Zhigu RUI TUO Tech Company Limited
• Inventors: DU, LIN, ZHOU, LIANG
• Granted Patent: US 10,255,889 B2
• Time in Patent Office: Days
• CPC Class Codes: G09G 2340/04 Changes in size, position or resolution of an image
• CPC Class Codes: G09G 5/10 Intensity circuits
• CPC Class Codes: G09G 5/38 with means for controlling the display position
• CPC Class Codes: G09G 5/391 Resolution modifying circuits, e.g. variable screen formats
• CPC Class Codes: H04N 13/307 using fly-eye lenses, e.g. arrangements of circular lenses

Abstract

Embodiments of the present application disclose various light field display control methods and apparatuses and various light field display devices, wherein a light field display control method disclosed comprises: sampling a source image according to interest level distribution information of the source image; determining a light field image corresponding to the sampled source image; adjusting display pixel density distribution of a display of a light field display device at least according to the interest level distribution information; and displaying the light field image via the adjusted light field display device. The technical solution provided in the embodiments of the present application can make full use of pixels of the display of the light field display device to present differential spatial resolution of different regions of a light field display image.

Claims

1. A light field display control method, comprising:

sampling a source image according to interest level distribution information of the source image;

determining a light field image corresponding to the sampled source image;

adjusting display pixel density distribution of a display of a light field display device at least according to the interest level distribution information; and

displaying the light field image via the adjusted light field display device.

2. The light field display control method of claim 1, further comprising:

acquiring the interest level distribution information of the source image.

3. The light field display control method of claim 2, wherein the acquiring the interest level distribution information comprises:

acquiring interest level indication information of the source image; and

determining the interest level distribution information according to the interest level indication information.

4. The light field display control method of claim 2, wherein the acquiring the interest level distribution information comprises:

performing image analysis on the source image; and

determining the interest level distribution information according to a result of the image analysis.

5. The light field display control method of claim 1, wherein the sampling a source image according to interest level distribution information comprises:

determining target sampling density distribution information according to the interest level distribution information, at least two target sampling densities in the target sampling density distribution information, which respectively correspond to different interest levels, are different; and

sampling the source image according to the target sampling density distribution information.

6. The light field display control method of claim 5, wherein an average target sampling density corresponding to interest levels higher than a first threshold is higher than an average target sampling density corresponding to interest levels lower than a second threshold, the first threshold being greater than or equal to the second threshold.

7. The light field display control method of claim 1, wherein the determining a light field image corresponding to the sampled source image comprises:

pre-processing the sampled source image according to vision information of a user to obtain the light field image.

8. The light field display control method of claim 1, wherein the adjusting display pixel density distribution of a display at least according to the interest level distribution information comprises:

determining target pixel density distribution information of the display according to the vision information of the user and the interest level distribution information, at least two target pixel densities in the target pixel density distribution information, which respectively correspond to different interest levels, are different; and

adjusting the display pixel density distribution of the display according to the target pixel density distribution information.

9. The light field display control method of claim 8, wherein the determining target pixel density distribution information according to the vision information and the interest level distribution information comprises:

pre-processing the interest level distribution information according to the vision information to obtain light field interest level distribution information; and

determining the target pixel density distribution information according to the light field interest level distribution information.

10. The light field display control method of claim 8, wherein an average target pixel density corresponding to light field interest levels higher than a first threshold is higher than an average target pixel density corresponding to light field interest levels lower than a second threshold, the first threshold being greater than or equal to the second threshold.

11. The light field display control method of claim 8, wherein the adjusting the display pixel density distribution of the display according to the target pixel density distribution information comprises:

determining deformation control information of a controllable deformed material portion according to the target pixel density distribution information; and

controlling the controllable deformed material portion to produce deformation according to the deformation control information, so as to correspondingly adjust the display pixel density distribution of the display through the deformation of the controllable deformed material portion.

12. The light field display control method of claim 11, wherein the controllable deformed material portion is prepared from at least one or more of the following controllable deformed materials:

piezoelectric materials, electroactive polymers, photodeformation materials and magnetostriction materials.

13. The light field display control method of claim 7, further comprising:

acquiring vision information of the user.

14. The light field display control method of claim 1, further comprising:

in the course of displaying the light field image via the adjusted light field display device, performing balancing control on display brightness of different display regions of the display.

15. A light field display control apparatus, comprising:

a source image sampling module, configured to sample a source image according to interest level distribution information of the source image;

a light field image determination module, configured to determine a light field image corresponding to the sampled source image;

a display pixel density distribution adjusting module, configured to adjust display pixel density distribution of a display of a light field display device at least according to the interest level distribution information; and

a display control module, configured to display the light field image via the adjusted light field display device.

16. The light field display control apparatus of claim 15, further comprising:

an interest level distribution information acquisition module, configured to acquire the interest level distribution information of the source image.

17. The light field display control apparatus of claim 16, wherein the interest level distribution information acquisition module comprises:

an interest level indication information acquisition sub-module, configured to acquire interest level indication information of the source image; and

an interest level distribution information acquisition sub-module, configured to determine the interest level distribution information according to the interest level indication information.

18. The light field display control apparatus of claim 16, wherein the interest level distribution information acquisition module comprises:

an image analysis sub-module, configured to perform image analysis on the source image; and

an image analysis result determination sub-module, configured to determine the interest level distribution information according to a result of the image analysis.

19. The light field display control apparatus of claim 15, wherein the source image sampling module comprises:

a target sampling density distribution information determination sub-module, configured to determine target sampling density distribution information according to the interest level distribution information, at least two target sampling densities in the target sampling density distribution information, which respectively correspond to different interest levels, are different; and

a sampling sub-module, configured to sample the source image according to the target sampling density distribution information.

20. The light field display control apparatus of claim 19, wherein an average target sampling density corresponding to interest levels higher than a first threshold is higher than an average target sampling density corresponding to interest levels lower than a second threshold, the first threshold being greater than or equal to the second threshold.

21. The light field display control apparatus of claim 15, wherein the light field image determination module comprises:

a light field image determination sub-module, configured to pre-process the sampled source image according to vision information of a user to obtain the light field image.

22. The light field display control apparatus of claim 15, wherein the display pixel density distribution adjusting module comprises:

a target pixel density distribution information determination sub-module, configured to determine target pixel density distribution information of the display according to the vision information of the user and the interest level distribution information in the target pixel density distribution information, at least two target pixel densities, which respectively correspond to different interest levels, are different; and

a display pixel density distribution adjusting sub-module, configured to adjust the display pixel density distribution of the display according to the target pixel density distribution information.

23. The light field display control apparatus of claim 22, wherein the target pixel density distribution information determination sub-module comprises:

a light field interest level distribution information determination unit, configured to pre-process the interest level distribution information according to the vision information to obtain light field interest level distribution information; and

a target pixel density distribution information determination unit, configured to determine the target pixel density distribution information according to the light field interest level distribution information.

24. The light field display control apparatus of claim 23, wherein an average target pixel density corresponding to light field interest levels higher than a first threshold is higher than an average target pixel density corresponding to light field interest levels lower than a second threshold, the first threshold being greater than or equal to the second threshold.

25. The light field display control apparatus of claim 21, wherein the display pixel density distribution adjusting sub-module comprises:

a deformation control information determination unit, configured to determine deformation control information of a controllable deformed material portion according to the target pixel density distribution information; and

a deformation control unit, configured to control the controllable deformed material portion to produce deformation according to the deformation control information, so as to correspondingly adjust the display pixel density distribution of the display through the deformation of the controllable deformed material portion.

26. The light field display control apparatus of claim 25, wherein the controllable deformed material portion is prepared from at least one or more of the following controllable deformed materials:

piezoelectric materials, electroactive polymers, photodeformation materials and magnetostriction materials.

27. The light field display control apparatus of claim 15, further comprising:

a vision information acquisition module, configured to acquire vision information of the user.

28. The light field display control apparatus of claim 15, further comprising:

a brightness balancing control module, configured to, in the course of displaying the light field image via the adjusted light field display device, perform balancing control on display brightness of different display regions of the display.

29. A light field display device, comprising:

a display;

a sub-lens array; and

the light field display control apparatus of claim 15, the light field display control apparatus being in a communication connection with the display.

30. The light field display device according to claim 29, wherein

the display comprises multiple display regions, one of the display regions comprising multiple display pixels;

and

the sub-lens array is disposed near the display and comprises multiple sub-lenses, one of the sub-lenses corresponding to at least one of the display regions.

31. The light field display device according to claim 29, wherein the display comprises:

multiple array-distributed display pixels; and

a controllable deformed material portion, respectively connected with the multiple display pixels;

wherein the controllable deformed material portion can produce deformation under the action of an external field, and correspondingly adjusts density distribution of the multiple display pixels through the deformation; and

the external field is controlled by the light field display control apparatus.

32. A non-transitory computer-readable storage medium comprising at least one set of executable instructions, which, in response to execution, cause a light field display control method, comprising:

sampling a source image according to interest level distribution information of the source image;

determining a light field image corresponding to the sampled source image;

adjusting display pixel density distribution of a display of a light field display device at least according to the interest level distribution information; and

displaying the light field image via the adjusted light field display device.

33. A light field display control apparatus, comprising a processor and a memory, the memory storing computer executable instructions that, when executed by the processor, cause the apparatus to perform operations, comprising:

sampling a source image according to interest level distribution information of the source image;

determining a light field image corresponding to the sampled source image;

adjusting display pixel density distribution of a display of a light field display device at least according to the interest level distribution information; and

displaying the light field image via the adjusted light field display device.