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Prediction-based real-time CABAC decoder for high definition H.264/AVC

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2 Author(s)
WonHee Son ; School of Electrical Engineering and Computer Science, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea ; In-Cheol Park

This paper proposes a prediction scheme to decode in real-time H.264/AVC bitstream coded in Context-based Adaptive Binary Arithmetic Coding (CABAC). The proposed scheme predicts the subsequent syntax element type, leading to a significant reduction in cycles invoked by the syntax element switching overhead that degrades the decoding performance significantly. In addition, a new pipelined architecture combined with the proposed scheme is presented for hardware implementation. The simulation results show that the proposed scheme achieves a decoding performance of 1.2 cycles/bin, which releases the CABAC parsing from a bottleneck in decoding H.264 bitstream.

Published in:

2008 IEEE International Symposium on Circuits and Systems

Date of Conference:

18-21 May 2008