Image processing apparatus, image processing method, and image display system

Patent metadata

Field	Value
Publication number	US-10681345-B2
Application number	US-201816058042-A
Country	US
Kind code	B2
Filing date	Aug 8, 2018
Priority date	Aug 8, 2017
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

An image processing apparatus includes a content interface, a communication interface and a controller configured to receive content from a content source through the content interface, encode image frames comprised in the content according to an encoding mode, and transmit the encoded image frames to a display apparatus through the communication interface. The controller encodes the image frames according to a first encoding option in a first encoding mode and encodes the image frames according to a second encoding option having a different encoding time delay from that of the first encoding option in a second encoding mode.

First claim

What is claimed is:

1. An image processing apparatus comprising:
a content interface;
a communication interface; and
a controller configured to receive content comprising a plurality of image frames from a content source through the content interface, encode the plurality image frames according to an encoding option selected from among a plurality of encoding options, and transmit the encoded image frames to a display apparatus through the communication interface,
wherein the controller is further configured to:
encode the plurality of image frames according to a first encoding option, and
encode the plurality of image frames according to a second encoding option having a different encoding time delay from the first encoding option, and
wherein the controller is configured to change the encoding option depending on whether the content is changed or whether the content source is changed.

2. The image processing apparatus of claim 1 , wherein the controller is further configured to encode the plurality of image frames according to the first encoding option having a first encoding time delay and a first loss rate of image information, and
the controller is further configured to encode the plurality of image frames according to the second encoding option having a second encoding time delay greater than the first encoding time delay and a second loss rate of image information smaller than the first loss rate of image information.

3. The image processing apparatus of claim 2 , wherein the controller is further configured to:
output a first event signal in response to at least one of the content comprising metadata indicating the first encoding option or in response to receiving an initiation of user input, and
output a second event signal in response to the at least one of the content comprising metadata indicating the second encoding option or in response to receiving a termination of the user input, and
wherein the controller comprises an image encoder configured to encode the plurality of image frames according to the first encoding option or the second encoding option depending on whether the first event signal or the second event signal is output.

4. The image processing apparatus of claim 3 , wherein, in response to receiving the first event signal, the image encoder changes the encoding option to the first encoding option and encodes the image frames with the first encoding time delay and the first loss rate of image information.

5. The image processing apparatus of claim 4 , wherein, when the controller determines that the encoded image frames are duplicates while the image frames are encoded according to the first encoding option, the image encoder prevents the determined duplicated image frames from being output.

6. The image processing apparatus of claim 3 , wherein, in response to receiving the second event signal, the image encoder changes the encoding option to the second encoding option and encodes the image frames with the second encoding time delay and the second loss rate of image information.

7. The image processing apparatus of claim 6 , wherein, when the encoded image frames are missing while the image frames are encoded according to the second encoding option, the image encoder adds metadata to the encoded image frames allowing the display apparatus to supplement the missing image frames.

8. The image processing apparatus of claim 3 , wherein:
in response to the content source, which provides the content through the content interface, being changed, the controller is further configured to output one of the first event signal and the second event signal according to the changed content source, and
in response to a change in content being received by the controller, the controller is further configured to output one of the first event signal and the second event signal according to the changed content.

9. The image processing apparatus of claim 1 , wherein the controller transmits, through the communication interface, the encoded image frames to the display apparatus in a wireless manner.

10. A method of processing an image, the method comprising:
receiving content comprising a plurality of image frames from a content source;
encoding the plurality of image frames according to an encoding option;
generating different event signals according to at least one of metadata comprised in the received content and a reception of user input; and
transmitting the encoded image frames to a display apparatus,
wherein the encoding of the image frames comprises encoding the image frames according to different encoding options having different encoding time delays in response to the different event signals, and
wherein the encoding option is changed depending on whether the content is changed or the content source is changed.

11. The method of claim 10 , wherein the encoding of the plurality of image frames having the different encoding time delays comprises:
encoding the plurality of image frames according to a first encoding option having a first encoding time delay and a first loss rate of image information in response to a first event signal from among the different event signals; and
encoding the plurality of image frames according to a second encoding option having a second encoding time delay greater than the first encoding time delay and a second loss rate of image information smaller than the first loss rate of image information in response to a second event signal from among the different event signals.

12. The method of claim 11 , wherein the generating of the different event signals comprises generating the first event signal in response to at least one of:
a change in the content source;
a change in the content;
a receipt of user input; and
the content comprising metadata indicating the first encoding option.

13. The method of claim 12 , wherein the encoding further comprises:
changing the encoding option to the first encoding option in response to the first event signal; and
when the encoded image frames are duplicate while encoding the plurality of image frames in the first encoding option, preventing the duplicate images frames from being output.

14. The method of claim 11 , wherein the generating of the event signal comprises outputting the second event signal in response to at least one of:
a change in the content source;
a change in the content;
a termination of user input; and
the content comprising metadata indicating the second encoding option.

15. The method of claim 14 , wherein the encoding further comprises:
changing the encoding option to the second encoding option in response to the second event signal; and
when the encoded image frames are missing while encoding the image frames in the second encoding option, adding metadata to the encoded image frames allowing the display apparatus to supplement the missing image frames.

16. An image display system comprising:
an image processing apparatus configured to encode image content to an image data stream; and
a display apparatus configured to display image frames converted from the image data stream,
wherein the image processing apparatus comprises:
a transmitter; and
a controller configured to:
encode the image content in an encoding mode selected from among a plurality of encoding modes having varying encoding time delays,
change the encoding mode in response to at least one of a change in the image content, a change in a source of the image content, user input, and metadata of the image content, and
transmit the image data stream to the display apparatus through the

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kang Woo Seok
• Sung Min Yong
• Yoo Ki Won

Classifications

• H04N19/172

  the region being a picture, frame or field · CPC title

• H04N19/136

  Incoming video signal characteristics or properties · CPC title

• H04N19/166

  concerning the amount of transmission errors, e.g. bit error rate [BER] · CPC title

• H04N19/103 Primary

  Selection of coding mode or of prediction mode · CPC title

• A63F13/35

  Details of game servers · CPC title