Interactive presentation: An efficient hardware architecture for H.264 intra prediction algorithm
Proceedings of the conference on Design, automation and test in Europe
An Efficient Intra Prediction Hardware Architecture for H.264 Video Decoding
DSD '07 Proceedings of the 10th Euromicro Conference on Digital System Design Architectures, Methods and Tools
Integer-pixel motion estimation H.264/AVC accelerator architecture with optimal memory management
Microprocessors & Microsystems
Motion estimation and CABAC VLSI co-processors for real-time high-quality H.264/AVC video coding
Microprocessors & Microsystems
A Computation and Power Reduction Technique for H.264 Intra Prediction
DSD '10 Proceedings of the 2010 13th Euromicro Conference on Digital System Design: Architectures, Methods and Tools
An efficient H.264 intra frame coder system
IEEE Transactions on Consumer Electronics
A novel computational complexity and power reduction technique for H.264 intra prediction
IEEE Transactions on Consumer Electronics
Pixel similarity based computation and power reduction technique for H.264 intra prediction
IEEE Transactions on Consumer Electronics
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
Analysis, fast algorithm, and VLSI architecture design for H.264/AVC intra frame coder
IEEE Transactions on Circuits and Systems for Video Technology
Fast mode decision algorithm for intraprediction in H.264/AVC video coding
IEEE Transactions on Circuits and Systems for Video Technology
Fast Coding Mode Selection With Rate-Distortion Optimization for MPEG-4 Part-10 AVC/H.264
IEEE Transactions on Circuits and Systems for Video Technology
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H.264 intra prediction algorithm has a very high computational complexity. In this paper, we propose pixel equality and pixel similarity based techniques for reducing the amount of computations performed by H.264 intra prediction algorithm and therefore reducing the power consumption of H.264 intra prediction hardware. These techniques exploit pixel equality and similarity in a video frame by performing a small number of comparisons among pixels used in prediction equations before the intra prediction process. If the pixels used in prediction equations are equal or similar, prediction equations simplify significantly. By exploiting the equality and similarity of the pixels used in prediction equations, the proposed pixel equality and pixel similarity based techniques reduce the amount of computations performed by 4x4 intra prediction modes up to 78% and 89%, respectively, with a small comparison overhead. We also implemented an efficient 4x4 intra prediction hardware including the proposed techniques using Verilog HDL. The proposed pixel equality and pixel similarity based techniques reduced the power consumption of this hardware up to 13.7% and 17.2%, respectively. The proposed pixel equality based technique does not affect the PSNR and bitrate. The proposed pixel similarity based technique increases the PSNR slightly for some videos frames and it decreases the PSNR slightly for some videos frames.