Implementation and analysis of the real-time motion compensation in MPEG2 for KICS(KAIST image computing system)

Abstract

Motion compensation is applied to reduce temporal redundancy in moving picture coding such as MPEG. MPEG-2 provides several motion compensation modes to allow the flexibility to encoder. In MPEG-2 decoder, there is a lot of consideration to reconstruct picture correctly. In order to implement MPEG-2 encoder and decoder in real-time, KAIST image computing system(KICS) has been developed in image computing systems lab., KAIST. The KICS is the programmable multiprocessor system using five MVP chips which are general-purpose digital signal processors. The simplified motion compensation module is realized by using debugging tool offered by manufacturer and is integrated with other modules to complete overall MPEG-2 decoder. This thesis introduces the motion compensation module in MPEG-2 decoder together with KICS and implementation procedure of the module. Also the utilized techniques to perform motion compensation are illustrated and the timing analysis is included allow the real-time operation of MPEG-2 decoder in KICS.