Method and System for a Parameterized Multi-Standard Deblocking Filter for Video Compression Systems

Abstract

In a video processing system, a method and system for a parametrized multi-standard deblocking filter for video compression systems are provided. A multi-standard deblocking filter may be configured to filter a reconstructed output stream based on a selected standard mode of operation. The configured multi-standard deblocking filter may be utilized in a decoder and/or in a decoding portion of an encoder. Filtered or unfiltered reconstructed pictures may be selected for storage in a picture buffer before further processing. Filtered or unfiltered reconstructed pictures may be selected for display in a decoder or for intra-coding and inter-coding processing in the decoding portion of the encoder. Filter parameters in the multi-standard deblocking filter may be configured based on a set of side information and the selected standard mode of operation.

1 . A method for video decoding, the method comprising:
 selecting a standard mode of operation;   configuring at least one filter based on said selected standard mode of operation;   determining whether to operate as a first type compression system or as a second type compression system based on said selected standard mode of operation;   processing a reconstructed output stream using said configured at least one filter when operating as said first type compression system is determined; and   processing the reconstructed output stream without using said configured at least one filter when operating as said second type compression system is determined.   
     
     
         2 . The method according to  claim 1 , further comprising generating said reconstructed output stream in a reconstructor. 
     
     
         3 . The method according to  claim 2 , further comprising transferring said reconstructed output stream from said reconstructor to said configured at least one filter. 
     
     
         4 . The method according to  claim 1 , further comprising determining to operate as said first type compression system when said selected standard mode of operation is that of a Type B compression system. 
     
     
         5 . The method according to  claim 4 , further comprising transferring said processed reconstructed output stream using said configured at least one filter to a display engine. 
     
     
         6 . The method according to  claim 4 , further comprising transferring said processed reconstructed output stream using said configured at least one filter to a picture buffer. 
     
     
         7 . The method according to  claim 4 , further comprising transferring a set of side information to said configured at least one filter, wherein contents and format of said transferred set of side information correspond to said selected standard mode of operation. 
     
     
         8 . The method according to  claim 7 , further comprising mapping said transferred set of side information to a set of filter parameters in said configured at least one filter. 
     
     
         9 . The method according to  claim 8 , further comprising processing said reconstructed output stream using said configured at least one filter by utilizing said mapped transferred set of side information in said set of filter parameters. 
     
     
         10 . The method according to  claim 1 , further comprising determining to operate as said second type compression system when said selected standard mode of operation is that of a Type A compression system. 
     
     
         11 . The method according to  claim 10 , further comprising transferring said reconstructed output stream without using said configured at least one filter to a display engine. 
     
     
         12 . The method according to  claim 10 , further comprising transferring said reconstructed output stream without using said configured at least one filter to a picture buffer. 
     
     
         13 . A system for video decoding, the system comprising:
 circuitry for selecting a standard mode of operation;   circuitry for configuring at least one filter based on said selected standard mode of operation;   circuitry for determining whether to operate as a first type compression system or as a second type compression system based on said selected standard mode of operation;   circuitry for processing a reconstructed output stream using said configured at least one filter when operating as said first type compression system is determined; and   circuitry for processing the reconstructed output stream without using said configured at least one filter when operating as said second type compression system is determined.   
     
     
         14 . The system according to  claim 13 , wherein a reconstructor generates said reconstructed output stream. 
     
     
         15 . The system according to  claim 14 , wherein said reconstructor transfers said reconstructed output stream to said configured at least one filter. 
     
     
         16 . The system according to  claim 13 , further comprising circuitry for determining to operate as said first type compression system when said selected standard mode of operation is that of a Type B compression system. 
     
     
         17 . The system according to  claim 16 , wherein a first decoder multiplexer transfers said processed reconstructed output stream using said configured at least one filter to a picture buffer. 
     
     
         18 . The system according to  claim 16 , wherein a second decoder multiplexer transfers said processed reconstructed output stream using said configured at least one filter to a display engine. 
     
     
         19 . The system according to  claim 16 , wherein a first encoder multiplexer transfers said processed reconstructed output stream using said configured at least one filter for intra-coding processing. 
     
     
         20 . The system according to  claim 16 , wherein a second encoder multiplexer transfers said processed reconstructed output stream using said configured at least one filter to a picture buffer.