Video decoder for tiles with absolute signaling

Abstract

A system for decoding a video bitstream includes receiving a reference picture set associated with a frame including a set of reference picture identifiers. The reference picture set identifies one or more reference pictures to be used for inter-prediction of the frame based upon its associated least significant bits of a picture order count based upon the reference picture identifiers. The one or more reference pictures is a second or greater previous frame to the frame having the matching reference picture identifier.

1 - 8 . (canceled) 
     
     
         9 . A method for decoding a video bitstream comprising:
 decoding a current picture by using inter prediction based on a reference picture set; and   storing said decoded picture to be referred for future inter prediction, wherein said reference picture set is decoded by using at least:   (a) a selected number of least significant bits (LSB) of a picture order count (POC) of a reference picture; and   (b) a signal to specify whether or not subsequent data to determine a MSB of the POC for said reference picture exists.   
     
     
         10 . The method of  claim 9 , wherein said subsequent data is based on a difference between the MSBs of two POCs. 
     
     
         11 . The method of  claim 9 , wherein said subsequent data is a value of the LSB of the POC of an i-th reference picture that is included in said reference picture set of said current picture. 
     
     
         12 . A method for encoding a video bitstream comprising:
 encoding a current picture using inter prediction based on a reference picture set, wherein said reference picture set is encoded by using at least:   (a) one or more reference picture identifiers each of which being based on a selected number of least significant bits (LSB) of a picture order count (POC) for a reference picture; and   (b) a signal to specify whether or not subsequent data to determine a MSB of said POC exists.   
     
     
         13 . The method of  claim 12 , wherein said subsequent data is based on the difference between the MSBs of two POCs. 
     
     
         14 . The method of  claim 12 , wherein said subsequent data is a value of the LSB of the POC of an i-th reference picture that is included in said reference picture set of said current picture.