SIGNALING DPB PARAMETERS IN VPS EXTENSION AND DPB OPERATION

• US 20140301477A1
• Filed: 04/07/2013
• Published: 10/09/2014
• Est. Priority Date: 04/07/2013
• Status: Abandoned Application

• Current Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Laboratories of America Incorporated (Hon Hai Precision Industry Co., Ltd.)
• Inventors: DESHPANDE, Sachin G.
• Application Number:
  US13/858,083
• Publication Number:
  US 20140301477A1
• Time in Patent Office: Days
• US Class Current: 375/240.25
• CPC Class Codes: H04N 19/152 by measuring the fullness of the transmission buffer
• CPC Class Codes: H04N 19/172 the region being a picture, frame or field
• CPC Class Codes: H04N 19/184 the unit being bits, e.g. of the compressed video stream
• CPC Class Codes: H04N 19/30 using hierarchical techniques, e.g. scalability H04N19/63 takes precedence
• CPC Class Codes: H04N 19/423 characterised by memory arrangements H04N19/433 takes precedence
• CPC Class Codes: H04N 19/44 Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
• CPC Class Codes: H04N 19/70 characterised by syntax aspects related to video coding, e.g. related to compression standards
• CPC Class Codes: H04N 19/82 involving filtering within a prediction loop

Abstract

A system for encoding and/or decoding a video bitstream that includes a base bitstream and enhancement bitstreams representative of a video sequence. The receiver receives a video parameter set and a video parameter set extension, where the video parameter set extension includes decoder picture buffer parameters.

Claims

1. A method for decoding a video bitstream comprising:

(a) receiving a base bitstream representative of a coded video sequence;

(b) receiving a plurality of enhancement bitstreams representative of said coded video sequence;

(c) receiving a video parameter set containing syntax elements that apply to said base bitstream and said plurality of enhancement bitstreams, wherein said video parameter set contains a syntax element signaling a video parameter set extension;

(d) receiving said video parameter set extension containing syntax elements that includes decoded picture buffer related parameters for a decoded picture buffer for at least one of said enhancement bitstreams.

2. The method of claim 1 wherein said decoded picture buffer related parameters are signaled for each enhancement layer.

3. The method of claim 1 wherein said decoded picture buffer related parameters are signaled for a sub-group of said enhancement layers.

4. The method of claim 3 wherein said sub-group is an output layer set.

5. The method of claim 3 wherein said sub-group is an operational point.

6. The method of claim 1 wherein said decoded picture buffer related parameters are used for the output and removal of pictures from decoded picture buffer.

7. The method of claim 6 wherein said output and removal of pictures from decoded picture buffer is determined based on using decoded picture buffer related parameters for an output layer set.

8. The method of claim 6 wherein said output and removal of pictures from decoded picture buffer is determined based on using decoded picture buffer related parameters for an operation point.

9. The method of claim 1 wherein said output and removal of pictures from decoded picture buffer is determined based on using decoded picture buffer related parameters signaled in video parameter set extension or in sequence parameter set.

10. The method of claim 1 wherein said decoded picture buffer is an output order decoded picture buffer.