Image display device and image display method

• US 10,674,133 B2
• Filed: 03/20/2015
• Issued: 06/02/2020
• Est. Priority Date: 05/23/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Oh, Sung-bo
• Primary Examiner(s): Aynalem, Nathnael
• Application Number:
  US15/311,743
• Publication Number:
  US 20170094246A1
• Time in Patent Office: 1,901 Days
• Field of Search: 348 42, 348 51
• CPC Class Codes: G06F 3/0482 Interaction with lists of selectable items, e.g. menus
• CPC Class Codes: G06T 3/073 Transforming surfaces of revolution to planar images, e.g. cylindrical surfaces to planar images
• CPC Class Codes: H04N 13/128 Adjusting depth or disparity
• CPC Class Codes: H04N 13/261 with monoscopic-to-stereoscopic image conversion
• CPC Class Codes: H04N 13/30 Image reproducers optical systems for producing stereoscopic or other three-dimensional effects G02B30/00
• CPC Class Codes: H04N 5/262 Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
• CPC Class Codes: H04N 5/2628 Alteration of picture size, shape, position or orientation, e.g. zooming, rotation, rolling, perspective, translation

Abstract

Disclosed is an image display device or an image signal output device. The image display device or the image signal output device according to an exemplary embodiment of the present disclosure includes: a receiver for receiving an image; an input unit for receiving a user input to select a display mode or an image signal output mode; a determiner for determining the selected display mode; a depth map generator for generating a depth map for the received image having depth information corresponding to a predefined curvature if the result of determination indicates that the selected display mode is a 3D curved image mode; a 3D image frame generator for generating a left-eye image frame and a right-eye image frame from the received image on the basis of the generated depth map; and an output unit for outputting the generated left-eye image and right-eye image frames.

Claims

1. An image display device, comprising:

a receiver configured to receive image data;

a flat display panel to display the image data; and

a processor configured to;

receive a user input selecting from an image display mode including a planar image mode and a 3D curved image mode, representing an image processing method,

based on the 3D curved image mode being selected via the user input, obtain a depth map having different depth values for a plurality of regions of the flat display panel, the different depth values of the depth map corresponding to a curvature predetermined for the 3D curved image mode,

obtain a 3D image frame including a left-eye image frame and a right-eye image frame by shifting the image data received through the receiver using the depth map, wherein the received image data has the same depth value, and

control the image display device to display the left-eye image frame and the right-eye image frame on the flat display panel.

2. The image display device of claim 1, wherein, based on the image display mode being a 3D planar image mode, the processor obtains the depth map having depth information on each region of the received image data.

3. The image display device of claim 1, wherein the processor obtains the depth map having depth information corresponding to a curvature of an oval.

4. The image display device of claim 1, wherein the depth map has the depth values reduced from a central portion toward a side portion.

5. The image display device of claim 1, wherein the user input is received through the display that displays a user menu for changing the image display mode.

6. The image display device of claim 1, wherein, based on the user input including a curvature selection, the processor obtains the depth map having depth information corresponding to the curvature selection.

7. The image display device of claim 1, wherein, based on the image display mode being a 2D planar image mode, the processor controls the display to display a 2D image using the received image without obtaining the depth map, the left-eye image frame, and the right-eye image frame.

8. An image display device, comprising:

a receiver configured to receive image data;

a flat display panel to display the image data; and

a processor configured to;

receive a user input selecting from an image display mode including a planar image mode and a 3D curved image mode, representing an image processing method,

based on the 3D curved image mode being selected via the user input, obtain a depth map having different depth values for a plurality of regions of the flat display panel, the different depth values of the depth map corresponding to a curvature predetermined for the 3D curved image mode,

obtain a 3D image frame including a left-eye image frame and a right-eye image frame by shifting the image data received through the receiver using the depth map, wherein the received image data has the same depth value, and

control the flat display panel to display the left-eye image frame and the right-eye image frame,

wherein, based on the display mode being a 2D curved image mode, the processor scales the received image to have different scaling ratios for each region of the plurality of regions of the flat display panel, and controls the flat display panel to display the scaled image.

9. The image display device of claim 8, wherein, based on the image display mode being the 2D curved image mode, the processor has a down-scaling extent increased from a side portion of the received image toward a central portion thereof to perform the scaling.

10. The image display device of claim 8, wherein as a result of the scaling, the processor fills a void region occurring due to the scaled image down-scaled over the received image with a black image.

11. An image display method of an image display device, comprising:

receiving an image;

receiving a user input selecting from an image display mode including a planar image mode and a 3D curved image mode, representing an image processing method;

based on the 3D curved image mode being selected via the user input, obtaining a depth map having different depth values for a plurality of regions of the flat display panel, the different depth values of the depth map corresponding to a curvature predefined for the 3D curved image mode;

obtaining a 3D image frame including a left-eye image frame and a right-eye image frame by shifting the received image data using the depth map, wherein the received image data has the same depth value; and

displaying the left-eye image frame and right-eye image frame on a flat display panel of the image display device.

12. The image display method of claim 11, further comprising:

based on the image display mode being the 3D planar image mode, obtaining the depth map having depth information on each region of the received image data.

13. The image display method of claim 11, wherein the obtaining the depth map comprises obtaining the depth map having depth information corresponding to a curvature of an oval.

14. The image display method of claim 11, wherein the obtained depth map has the depth value reduced from a central portion toward a side portion.

15. The image display method of claim 11, further comprising:

displaying a user menu for selecting the display mode on the display.