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

• US 20170353717A1
• Filed: 09/10/2015
• Published: 12/07/2017
• Est. Priority Date: 12/29/2014
• Status: Active Grant

• Current Assignee: Beijing Zhigu Tech Company, Ltd.
• Original Assignee: Beijing Zhigu Tech Company, Ltd.
• Inventors: ZHOU, LIANG, DU, LIN
• Granted Patent: US 10,432,925 B2
• Time in Patent Office: Days
• CPC Class Codes: H04N 13/305 using lenticular lenses, e.g. arrangements of cylindrical lenses
• CPC Class Codes: H04N 13/307 using fly-eye lenses, e.g. arrangements of circular lenses
• CPC Class Codes: H04N 13/398 Synchronisation thereof; Control thereof
• CPC Class Codes: H04N 9/3182 Colour adjustment, e.g. white balance, shading or gamut white balance per se H04N9/73; control of amplitude of colour signals H04N9/68; colour control circuits for displays in general G09G5/02, G09G3/2003, G09G3/3607

Abstract

Embodiments of the present application disclose various light field display control method and apparatus and a light field display device. The optical field display control method comprises: adjusting display pixel density distribution of a display of a light field display device; performing sampling processing on a light field image according to location information of display pixels of the display after the adjustment; and displaying, by the optical field display device after the adjustment, the optical field image undergone the sampling processing. The technical solution provided in the embodiments of the present application can present differential spatial resolution of different regions of a light field display image by fully using pixels of a display of a light field display device.

Claims

1. A light field display control method, comprising:

adjusting display pixel density distribution of a display of a light field display device;

performing sampling processing on a light field image according to location information of display pixels of the display after the adjustment; and

displaying, by the light field display device after the adjustment, the light field image undergone the sampling processing.

2. The method of claim 1, further comprising:

preprocessing an image to obtain the light field image corresponding to the image.

3. The method of claim 2, wherein the preprocessing an image to obtain the light field image corresponding to the image comprises:

preprocessing the image according to vision information of a user to obtain the light field image.

4. The method of claim 3, further comprising:

acquiring vision information of the user.

5. The method of claim 1, wherein the adjusting the display pixel density distribution of the display of the light field display device comprises:

determining target pixel density distribution information; and

adjusting the display pixel density distribution of the display according to the target pixel density distribution information, to cause that at least two display regions in the display after the adjustment have different display pixel densities.

6. The method of claim 5, wherein the determining the target pixel density distribution information comprises:

determining a first region of the image;

determining light field sub-image information corresponding to the first region in the light field image;

determining a first display region in the display that affects displaying of the light field sub-image information; and

determining the target pixel density distribution information according to the first display region, wherein in the target pixel density distribution information, the target pixel density corresponding to the first display region is different from the target pixel density corresponding to a second display region, and the second display region is at least a part of display region of the display other than the first display region.

7. The method of claim 5, wherein the determining the target pixel density distribution information comprises:

determining a first region of the image;

determining a first display region of the display according to relative location information of pixels in the first region relative to a reference point of the image; and

determining the target pixel density distribution information according to the first display region, wherein in the target pixel density distribution information, the target pixel density corresponding to the first display region is different from the target pixel density corresponding to a second display region, and the second display region is at least a part of display region of the display other than the first display region.

8. The method of claim 6 or 7, wherein the display comprises display regions respectively corresponding to various lenslets in a lenslet array of the light field display device, and the first display region is distributed in at least one of the display regions.

9. The method of claim 8, wherein the first display region is distributed in at least two of the display regions.

10. The method of claim 6, wherein the determining the first region of the image comprises:

acquiring region of interest information; and

determining the first region of the image according to the region of interest information.

11. The method of claim 6, wherein the determining the first region of the image comprises:

performing image analysis on the image; and

determining the first region of the image according to a result of the image analysis.

12. The method of claim 5, 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 deformation material part according to the target pixel density distribution information; and

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

13. The method of claim 12, wherein the controllable deformation material part is made of one or more of the following controllable deformation materials:

a piezoelectric material, an electroactive polymer, a photoinduced deformation material, and a magnetostrictive material.

14. The method of claim 1, further comprising:

performing a balanced control on display brightness of different display regions of the display in a process that the light field display device after the adjustment displays the light field image undergone the sampling processing.

15. A light field display control apparatus, comprising:

a display pixel density distribution adjusting module, configured to adjust display pixel density distribution of a display of a light field display device;

an image sampling processing module, configured to perform sampling processing on a light field image according to location information of display pixels of the display after the adjustment; and

a light field display controlling module, configured to display, by the light field display device after the adjustment, the light field image undergone the sampling processing.

16. The apparatus of claim 15, further comprising:

an image preprocessing module, configured to perform preprocessing on an image to obtain a light field image corresponding to the image.

17. The apparatus of claim 16, wherein the image preprocessing module comprises:

an image preprocessing sub-module, configured to preprocess the image according to vision information of a user to obtain the light field image.

18. The apparatus of claim 17, further comprising:

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

19. The apparatus of claim 15, wherein the display pixel density distribution adjusting module comprises:

a target pixel density distribution information determining sub-module, configured to determine target pixel density distribution information; 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, to cause that at least two display regions in the display after the adjustment have different display pixel densities.

20. The apparatus of claim 19, wherein:

the target pixel density distribution information determining sub-module comprises;

a first region determining unit, configured to determine a first region of the image;

a light field sub-image information determining unit, configured to determine light field sub-image information corresponding to the first region in the light field image;

a first display region determining unit, configured to determine a first display region in the display that affects displaying of the light field sub-image information; and

a target pixel density distribution information determining unit, configured to determine the target pixel density distribution information according to the first display region, wherein in the target pixel density distribution information, the target pixel density corresponding to the first display region is different from the target pixel density corresponding to a second display region, and the second display region is at least a part of display region of the display other than the first display region;

or

the target pixel density distribution information determining sub-module comprises;

a first region determining unit, configured to determine a first region of the image;

a first display region determining unit, configured to determine a first display region of the display according to relative location information of pixels in the first region relative to a reference point of the image; and

a target pixel density distribution information determining unit, configured to determine the target pixel density distribution information according to the first display region, wherein in the target pixel density distribution information, the target pixel density corresponding to the first display region is different from the target pixel density corresponding to a second display region, and the second display region is at least a part of display region of the display other than the first display region.

21. The apparatus of claim 20, wherein the display comprises display regions respectively corresponding to various lenslets in a lenslet array of the light field display device, and the first display region is distributed in at least one of the display regions.

22. The apparatus of claim 21, wherein the first display region is distributed in at least two of the display regions.

23. The apparatus of claim 20, wherein the first region determining module comprises:

a region of interest information acquiring sub-unit, configured to acquire region of interest information; and

a region of interest determining sub-unit, configured to determine the first region of the image according to the region of interest information.

24. The apparatus of claim 20, wherein the first region determining module comprises:

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

a first region determining sub-unit, configured to determine the first region of the image according to a result of the image analysis.

25. The apparatus of claim 19, wherein the target pixel density distribution information determining sub-module comprises:

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

a deformation controlling unit, configured to control, according to the deformation control information, the controllable deformation material part to deform, so as to adjust the display pixel density distribution of the display correspondingly through the deformation of the controllable deformation material part.

26. The apparatus of claim 25, wherein the controllable deformation material part is at least made of one or more of the following controllable deformation materials:

a piezoelectric material, an electroactive polymer, a photoinduced deformation material, and a magnetostrictive material.

27. The apparatus of claim 15, further comprising:

a brightness balanced control module, configured to perform a balanced control on display brightness of different display regions of the display in a process that the light field display device after the adjustment displays the light field image undergone the sampling processing.

28. A light field display device, comprising:

a display;

a lenslet array; and

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

29. The light field display device of claim 28, wherein:

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

the lenslet array is disposed to be close to the display, comprises multiple lenslets, and one of the lenslets is corresponding to at least one of the display regions.

30. The light field display device of claim 28 or 29, wherein the display comprises:

multiple display pixels distributed in an array; and

a controllable deformation material part, connected to the multiple display pixels respectively, wherein the controllable deformation material part deforms under the action of an external field, density distribution of the multiple display pixels is adjusted correspondingly through the deformation, and the external field is controlled by the light field display control apparatus.

31. A computer readable storage apparatus, comprising at least one executable instruction, which, in response to execution, causes a processor to perform a light field display control method, comprising:

adjusting display pixel density distribution of a display of a light field display device;

performing sampling processing on a light field image according to location information of display pixels of the display after the adjustment; and

displaying, by the light field display device after the adjustment, the light field image undergone the sampling processing.

32. A light field display control apparatus, characterized by comprising a processor and a memory, the memory storing computer executable instructions, the processor being connected to the memory through a communication bus, and when the apparatus for controlling task migration operates, the processor executing the computer executable instructions stored in the memory, so that the apparatus for controlling task migration executes operations, comprising:

adjusting display pixel density distribution of a display of a light field display device;

performing sampling processing on a light field image according to location information of display pixels of the display after the adjustment; and

displaying, by the light field display device after the adjustment, the light field image undergone the sampling processing.