DocumentCode :
2454822
Title :
A novel co-decoding scheme to reduce memory in MPEG-2 MP@ML decoder
Author :
Chimienti, Antonio ; Lucenteforte, Murizio ; Pau, Danilo ; Sannino, Roberto
Author_Institution :
Centro di Studio per la Televisione, CNR, Torino, Italy
fYear :
1998
fDate :
29 Sep-2 Oct 1998
Firstpage :
272
Lastpage :
277
Abstract :
This paper presents an encoding algorithm which allows a main profile main level MPEG-2 decoder to reduce the external dedicated memory. Typically, for most TV applications, a 16 Mbit SDRAM is needed, but using a new compression approach it is possible to reduce this amount of memory to less than 8 Mbits for PAL sequences. The REMPEG50 (reduced memory MPEG decoder and 50% frame compression) is a modified architecture of a MPEG-2 decoder that needs only one half of the external memory while keeping a full compatibility with the standard MPEG-2 decoder. When compared to a “pure” MPEG-2 decompression scheme, this shows a very good trade-off between loss of MPEG-2 quality over different bit rates and overall increased complexity
Keywords :
data compression; decoding; image sequences; video codecs; 16 Mbyte; 8 Mbyte; MPEG-2 MP@ML decoder; MPEG-2 decoder; PAL sequences; REMPEG50; TV applications; bit rate; co-decoding scheme; complexity; compression approach; decompression scheme; encoding algorithm; external dedicated memory; main profile main level MPEG-2 decoder; modified architecture; quality; reduced memory MPEG decoder and 50% frame compression; Bit rate; Buffer storage; Decoding; Encoding; Graphics; Microelectronics; Random access memory; SDRAM; TV; Transform coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signals, Systems, and Electronics, 1998. ISSSE 98. 1998 URSI International Symposium on
Conference_Location :
Pisa
Print_ISBN :
0-7803-4900-8
Type :
conf
DOI :
10.1109/ISSSE.1998.738080
Filename :
738080
Link To Document :
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