Method and apparatus for providing reduced resolution update mode for multi-view video coding

Patent metadata

Field	Value
Publication number	US-9628823-B2
Application number	US-8702007-A
Country	US
Kind code	B2
Filing date	Jan 9, 2007
Priority date	Jan 9, 2006
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

There are provided a video encoder, a video decoder, and corresponding encoding and decoding methods for providing adaptation of deblocking filtering for multi-view video coding. The video encoder includes a deblocking filter adaptable based on prediction information for encoding multi-view video sequences.

First claim

The invention claimed is:

1. A video encoder, comprising:
a deblocking filter to be applied on a given block of an image from a multi-view video sequence to be encoded based on cross-view prediction and temporal prediction, wherein said deblocking filter has a strength that can be controlled according to a comparison between a prediction type information associated with said given block, and a prediction type information associated with a neighborhood block of said given block, said prediction type information being either a temporal prediction information or a cross view prediction information, and wherein said strength is stronger when said prediction type information of said given block and said neighborhood block are different.

2. The video encoder of claim 1 , wherein the prediction type information of said given block and said neighborhood block further comprises reference-view information.

3. The video encoder of claim 2 , wherein said deblocking filter is compliant with 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, and said strength corresponds to a boundary strength.

4. The video encoder of claim 1 , wherein the multi-view video sequences include stereoscopic video sequences.

5. A video encoding method for a given block of an image from a multi-view video sequence to be encoded on cross-view prediction and temporal prediction, the method comprising:
controlling a strength of a deblocking filtering to be applied on said given block according to a comparison between the prediction type information associated with said given block, and the prediction type information associated with a neighborhood block of said given block, said prediction type information being either a temporal prediction information or a cross view prediction information, and wherein said strength is stronger when said prediction type information of said given block and said neighborhood block are different.

6. The method of claim 5 , wherein the prediction type information of said given block and said neighborhood block further comprises reference-view information.

7. The method of claim 6 , wherein said deblocking filtering is compliant with 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, and said adapting step adapts a boundary strength of the deblocking filtering responsive to prediction information for encoding multi-view video sequences.

8. The method of claim 5 , wherein the multi-view video sequences include stereoscopic video sequences.

9. A video decoder, comprising:
a deblocking filter to be applied on a given block of an image from a multi-view video sequence to be decoded based on cross-view prediction and temporal prediction, wherein said deblocking filter has a strength that can be controlled according to a comparison between a prediction type information associated with said given block, and a prediction type information associated with a neighborhood block of said given block, said prediction type information being either a temporal prediction information or a cross view prediction information, and wherein said strength is stronger when said prediction type information of said given block and said neighborhood block are different.

10. The video decoder of claim 9 , wherein the prediction type information of said given block and said neighborhood block further comprises reference view information.

11. The video decoder of claim 10 , wherein said deblocking filter is compliant with 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, and said strength corresponds to a boundary strength.

12. The video decoder of claim 9 , wherein the multi-view video sequences include stereoscopic video sequences.

13. A video decoding method, for given block of an image from a multi-view video sequence to be decoded based on cross-view prediction and temporal prediction, the method comprising:
controlling a strength of a deblocking filtering to be applied on said given block, according to a comparison between a prediction type information associated with said given block, and a prediction type information associated with a neighborhood block of said given block, said prediction type information being either a temporal prediction information or a cross view prediction information, and wherein said strength is stronger when said prediction type information of said given block and said neighborhood block are different.

14. The method of claim 13 , wherein the prediction type information of said given block and said neighborhood block further comprises reference-view information.

15. The method of claim 14 , wherein said deblocking filtering is compliant with 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, and said strength corresponds to a boundary strength.

16. The method of claim 13 , wherein the multi-view video sequences include stereoscopic video sequences.

Assignees

• Gomila Cristina
• Su Yeping
• Yin Peng
• Thomson Licensing Dtv

Inventors

• Gomila Cristina
• Su Yeping
• Yin Peng

Classifications

• H04N19/51

  Motion estimation or motion compensation · CPC title

• H04N19/176

  the region being a block, e.g. a macroblock · CPC title

• H04N19/70

  characterised by syntax aspects related to video coding, e.g. related to compression standards · CPC title

• H04N19/61

  in combination with predictive coding · CPC title

• H04N19/117

  Filters, e.g. for pre-processing or post-processing (sub-band filter banks H04N19/635) · CPC title