METHOD AND APPARATUS FOR VIDEO ERROR CONCEALMENT USING HIGH LEVEL SYNTAX REFERENCE VIEWS IN MULTI-VIEW CODED VIDEO

• US 20100061452A1
• Filed: 01/04/2008
• Published: 03/11/2010
• Est. Priority Date: 01/04/2007
• Status: Abandoned Application

• Current Assignee: Thomson Licensing (Vantiva SA)
• Original Assignee: Thomson Licensing SA (Vantiva SA)
• Inventors: Yin, Peng, Su, Yeping, Pandit, Purvin Bibhas
• Application Number:
  US12/448,657
• Publication Number:
  US 20100061452A1
• Time in Patent Office: Days
• US Class Current: 375/240.120
• CPC Class Codes: H04N 19/597 specially adapted for multi-view video sequence encoding
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards
• CPC Class Codes: H04N 19/895 in combination with error concealment

Abstract

There are provided a method and apparatus for video error concealment using high level syntax reference views in multi-view coded video. The apparatus includes a decoder for decoding pictures for at least one view corresponding to multi-view video content from a bitstream. The pictures are representative of at least a portion of a video sequence. At least some of the pictures correspond to different time instances in the video sequence. The decoder determines whether any of the pictures corresponding to a particular one of the different time instances are lost using an existing syntax element. The existing syntax element is for indicating at least one reference view used for inter-view prediction of at least one of the pictures.

Claims

1. An apparatus, comprising:

a decoder for decoding pictures for at least one view corresponding to multi-view video content from a bitstream, the pictures representative of at least a portion of a video sequence, at least some of the pictures corresponding to different time instances in the video sequence, wherein said decoder determines whether any of the pictures corresponding to a particular one of the different time instances are lost using an existing syntax element, the existing syntax element for indicating at least one reference view used for inter-view prediction of at least one of the pictures.

2. The apparatus of claim 1, wherein the existing syntax element is a multi-view video coding syntax element.

3. The apparatus of claim 2, wherein the multi-view video coding syntax element corresponds to an extension of the International Organization for Standardization/International Electrotechnical Commission Moving Picture Experts Group-4 Part 10 Advanced Video Coding standard/International Telecommunication Union, Telecommunication Sector H.264 recommendation.

4. The apparatus of claim 1, wherein the existing syntax element is present at a high level.

5. The apparatus of claim 1, wherein the high level corresponds to at least at one of a slice header level, a sequence parameter set level, a picture parameter set level, a view parameter set level, a network abstraction layer unit header level, and a level corresponding to a supplemental enhancement information message.

6. The apparatus of claim 1, wherein said decoder determines whether any of the pictures corresponding to a particular one of the different time instances are lost further using time first coding information.

7. The apparatus of claim 6, wherein said decoder searches for the at least one reference picture used for the inter-view prediction of the at least one of the pictures in a previously decoded picture list, the previously decoded list representing at least a portion of the time first coding information.

8. The apparatus of claim 7, wherein the at least one reference picture to be searched for is identified using an identifier corresponding to the at least one reference picture and a particular one of the different time instances for the at least one of the pictures, the at least one of the pictures being a currently decoded picture.

9. A method, comprising:

decoding pictures for at least one view corresponding to multi-view video content from a bitstream, the pictures representative of at least a portion of a video sequence, at least some of the pictures corresponding to different time instances in the video sequence, wherein said decoding step comprises determining whether any of the pictures corresponding to a particular one of the different time instances are lost using an existing syntax element, the existing syntax element for indicating at least one reference view used for inter-view prediction of at least one of the pictures.

10. The method of claim 9, wherein the existing syntax element is a multi-view video coding syntax element.

11. The method of claim 10, wherein the multi-view video coding syntax element corresponds to an extension of the International Organization for Standardization/International Electrotechnical Commission Moving Picture Experts Group-4 Part 10 Advanced Video Coding standard/International Telecommunication Union, Telecommunication Sector H.264 recommendation.

12. The method of claim 9, wherein the existing syntax element is present at a high level.

13. The method of claim 9, wherein the high level corresponds to at least at one of a slice header level, a sequence parameter set level, a picture parameter set level, a view parameter set level, a network abstraction layer unit header level, and a level corresponding to a supplemental enhancement information message.

14. The method of claim 9, wherein said determining step determines whether any of the pictures corresponding to a particular one of the different time instances are lost further using time first coding information.

15. The method of claim 14, wherein said determining step comprises searching for the at least one reference picture used for the inter-view prediction of the at least one of the pictures in a previously decoded picture list, the previously decoded list representing at least a portion of the time first coding information.

16. The method of claim 15, wherein the at least one reference picture to be searched for is identified using an identifier corresponding to the at least one reference picture and a particular one of the different time instances for the at least one of the pictures, the at least one of the pictures being a currently decoded picture.