METHOD FOR VIDEO CODING AND AN APPARATUS, A COMPUTER-PROGRAM PRODUCT, A SYSTEM, AND A MODULE FOR THE SAME

• US 20130188738A1
• Filed: 01/17/2013
• Published: 07/25/2013
• Est. Priority Date: 01/20/2012
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Hannuksela, Miska Matias, Gopalakrishna, Srikanth Manchenahally
• Granted Patent: US 9,973,749 B2
• Time in Patent Office: Days
• US Class Current: 375/240.25
• CPC Class Codes: H04N 19/177 the unit being a group of pictures [GOP]
• CPC Class Codes: H04N 19/31 in the temporal domain
• CPC Class Codes: H04N 19/46 Embedding additional information in the video signal during the compression process H04N19/517, H04N19/68, H04N19/70 take precedence
• CPC Class Codes: H04N 19/67 involving unequal error protection [UEP], i.e. providing protection according to the importance of the data
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards

Abstract

A method includes encoding information of at least two short-term reference picture sets into a bitstream; encoding into the bitstream a structure of pictures description with an indication being indicative of which one of the at least two short-term reference picture sets to be used for decoding by a picture in question within the structure of pictures, the structure of pictures including one or more consecutive pictures in decoding order; encoding pictures according to the structure of pictures description into the bitstream.

Claims

1. A method, comprising:

encoding information of at least two short-term reference picture sets into a bitstream;

encoding into the bitstream a structure of pictures description with an indication being indicative of which one of the at least two short-term reference picture sets to be used for decoding by a picture in question within the structure of pictures, the structure of pictures comprising one or more consecutive pictures in decoding order; and

encoding pictures according to the structure of pictures description into the bitstream.

2. The method according to claim 1, further comprising encoding the structure of pictures description into a sequence parameter set or a supplemental enhancement information message.

3. The method according to claim 1, further comprising collecting at least one structure of pictures description into a description of a sequence of structures of pictures.

4. The method according to claim 1, further comprising including a reference to a structure of pictures description into a coded video sequence description.

5. The method according to claim 3, further comprising including a reference to a description of a sequence of structures of pictures into a coded video sequence description.

6. The method according to claim 1, further comprising providing a slice header with an index identifying the structure of pictures, where a picture in question belongs to, and with an order number identifying the picture in question within said structure of pictures.

7. An apparatus, comprising:

at least one processor; and

at least one memory including computer program code,

the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following;

encode information of at least two short-term reference picture sets into a bitstream,

encode into the bitstream a structure of pictures description with an indication being indicative of which one of the at least two short-term reference picture sets to be used for decoding by a picture in question within the structure of pictures, the structure of pictures comprising one or more consecutive pictures in decoding order; and

encode pictures according to the structure of pictures description into the bitstream.

8. The apparatus of claim 7, wherein the processor comprises at least one memory that contains computer program code that if executed by the processor cause the apparatus to encode the structure of pictures description into a sequence parameter set or a supplemental enhancement information message.

9. The apparatus of claim 7, wherein the processor comprises at least one memory that contains computer program code that if executed by the processor cause the apparatus to collect at least one structure of pictures description into a description of a sequence of structures of pictures.

10. The apparatus of claim 7, wherein the processor comprises at least one memory that contains computer program code that if executed by the processor cause the apparatus to include a reference to a structure of pictures description into a coded video sequence description.

11. The apparatus of claim 9, wherein the processor comprises at least one memory that contains computer program code that if executed by the processor cause the apparatus to include a reference to a description of a sequence of structures of pictures into a coded video sequence description.

12. The apparatus of claim 7, wherein the processor comprises at least one memory that contains computer program code that if executed by the processor cause the apparatus to provide a slice header with an index identifying the structure of pictures, where a picture in question belongs to, and with an order number identifying the picture in question within said structure of pictures.

13. An apparatus, comprising at least one processor;

and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus to perform at least the following;

decode information of at least two short-term reference picture sets from a bitstream;

decode from the bitstream a structure of pictures description with an indication being indicative of which one of the at least two short-term reference picture sets to be used for decoding by a picture in question within the structure of pictures, the structure of pictures comprising one or more consecutive pictures in decoding order; and

decode pictures according to the structure of pictures description from the bitstream.

14. A method, comprising

decoding information of at least two short-term reference picture sets from a bitstream;

decoding from the bitstream a structure of pictures description with an indication being indicative of which one of the at least two short-term reference picture sets to be used for decoding by a picture in question within the structure of pictures, the structure of pictures comprising one or more consecutive pictures in decoding order; and

decoding pictures according to the structure of pictures description from the bitstream.