Display apparatus and server, and control methods thereof

Patent metadata

Field	Value
Publication number	US-11317072-B2
Application number	US-201816100434-A
Country	US
Kind code	B2
Filing date	Aug 10, 2018
Priority date	Aug 16, 2017
Publication date	Apr 26, 2022
Grant date	Apr 26, 2022

Abstract

A display apparatus is provided. The display apparatus includes: an image processor configured to process an image signal; a display; and a processor configured to control the image processor to produce, from a 360-degree image, a plurality of split images to be arranged along a circumference within a predetermined region that includes a great circle of a sphere shape being mapped, based on a viewpoint corresponding to a user input, the plurality of split images corresponding to a plurality of screens, and to produce a projection image to be displayed on the display based on the viewpoint from the split image of the screen that corresponds to the display apparatus from among the plurality of split images.

First claim

What is claimed is:

1. A display apparatus comprising:
a display; and
a processor configured:
to obtain a plurality of first view angle ranges based on a number of a plurality of screens and a position at which a first screen that corresponds to the display apparatus is arranged,
to produce, from a 360-degree image, a first plurality of split images to be arranged along a first great circle of a sphere shape, based on a first viewpoint that corresponds to a first user input and the plurality of first view angle ranges,
to produce a first projection image to be displayed on the display from a first split image from among the first plurality of split images,
to control the display to display the first projection image,
in response to a second user input for changing a viewpoint from the first viewpoint to a second viewpoint, to identify a second great circle of the sphere shape having a rotation angle from the first great circle, based on the second viewpoint,
to produce, from the 360-degree image, a second plurality of split images arranged along the second great circle,
to produce a second projection image to be displayed on the display from a second split image from among the second plurality of split images, and
to control the display to display the second projection image,

wherein a center point of the first great circle is same as a center point of the second great circle, and
wherein the first plurality of split images corresponds to the plurality of screens, and the first split image corresponds to the first screen.

2. The display apparatus according to claim 1 , wherein the processor is further configured to transmit control information based on the second user input to each of a plurality of display apparatuses corresponding to the plurality of screens, and
wherein the control information comprises at least one from among information about a change in a view angle, information about a pitching rotation angle, and information about a yawing rotation angle.

3. The display apparatus according to claim 1 , wherein the processor is further configured to set a control reference point with regard to the first screen based on a third user input, and to obtain a center point of a third projection image displayed on a second screen based on a set position of the control reference point.

4. The display apparatus according to claim 3 , wherein the processor is further configured to change a position at which the third projection image is displayed based on information about a change of the first viewpoint and an angular distance of the center point of the second projection image from the control reference point when the third projection image is subjected to a pitching rotation or a yawing rotation based on a fourth user input.

5. The display apparatus according to claim 1 , wherein the processor is further configured to adjust a view angle of a third projection image displayed on a second screen based on a predetermined total view angle range that corresponds to the plurality of screens, when the first projection image is subjected to zoom control based on a fifth user input.

6. A display apparatus comprising:
a display; and
a processor configured:
to select a plurality of display apparatuses to be connected on a network based on a first user input,
to obtain a plurality of first view angle ranges based on a number of a plurality of screens of the plurality of display apparatuses and a position at which a first screen that corresponds to the display apparatus is arranged,
to produce, from a 360-degree image, a first plurality of split images to be arranged along a first great circle of a sphere shape corresponding to viewpoints of the plurality of screens based on a second user input and the plurality of first view angle ranges,
to map each of the produced first plurality of split images to the sphere shape,
in response to a viewpoint control, to identify a second great circle of the sphere shape having a rotation angle from the first great circle,
to produce, from the 360-degree image, a second plurality of split images arranged along the second great circle, and
to map each of the produced second plurality of split images to the sphere shape,

wherein a center point of the first great circle is same as a center point of the second great circle.

7. The display apparatus according to claim 6 , wherein the processor is further configured to display a first user interface for setting a respective position of the sphere shape to which each corresponding one of the first plurality of split images is mapped.

8. The display apparatus according to claim 6 , wherein the processor is further configured to display a second user interface for showing images of apparatuses arranged in a surrounding space of a user, and to select the plurality of display apparatuses based on the first user input to the second user interface.

9. A non-transitory computer readable storage medium storing a computer program comprising an instruction that, when executed by a processor, causes a computer to perform a method comprising:
obtaining a plurality of first view angle ranges based on a number of a plurality of screens and a position at which a first screen that corresponds to a display apparatus is arranged,
producing, from a 360-degree image, a first plurality of split images to be arranged along a first great circle of a sphere shape based on a first viewpoint that corresponds to a first user input and the plurality of first view angle ranges,
producing a first projection image to be displayed from a first split image from among the first plurality of split images,
displaying the first projection image,
in response to a second user input for changing a viewpoint from the first viewpoint to a second viewpoint, identifying a second great circle of the sphere shape having a rotation angle from the first great circle, based on the second viewpoint,
producing, from the 360-degree image, a second plurality of split images arranged along the second great circle of the sphere shape,
producing a second projection image to be displayed from a second split image from among the second plurality of split images, and
displaying the second projection image,
wherein a center point of the first great circle is same as a center point of the second great circle, and
wherein the first plurality of split images corresponds to the plurality of screens, and wherein the first split image corresponds to the first screen.

10. A server comprising:
a communication interface configured to communicate with a plurality of display apparatuses; and
a processor configured:
to obtain a plurality of first view angle ranges based on a number of a plurality of screens of the plurality of display apparatuses,
to control the communication interface to produce, from a 360-degree image, a first plurality of split images to be arranged along a first great circle of a sphere shape based on the plurality of first view angle ranges,
to transmit each respective one of the produced first plurality of split images to a corresponding one of the plurality of display apparatuses,
in response to a viewpoint control, to identify a second great circle of the sphere shape having a rotation angle from the first great circle,
to produce, from the 360-degree image, a second plurality of split images arranged along the second great circle, and
to transmit each respective one of the produced second plurality of split images to a corresponding one of the plurality of display apparatuses,

wherein a center point of the first great circle is same as a center point of the second great circle.

11. The server according to claim 10 , whe

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kim Yong-Deok
• Kim Bo-Eun
• Kim Sung-Hyun

Classifications

• H04N9/3147

  Multi-projection systems (video walls G06F3/1446) · CPC title

• H04N21/4402

  involving reformatting operations of video signals for household redistribution, storage or real-time display {(details of conversion of video standards at pixel level H04N7/01; video transcoding H04N19/40; adapting incoming signals to the display format of the display terminal G09G5/005; media handling at the source in data packet switching networks H04L65/764)} · CPC title

• G09G2340/0471

  Vertical positioning · CPC title

• H04N13/117 Primary

  the virtual viewpoint locations being selected by the viewers or determined by viewer tracking · CPC title

• H04N21/21805 Primary

  enabling multiple viewpoints, e.g. using a plurality of cameras · CPC title