title   
  

A low energy intra prediction hardware for high efficiency video coding

Kalalı, Ercan and Adıbelli, Yusuf and Hamzaoğlu, İlker (2014) A low energy intra prediction hardware for high efficiency video coding. Journal of Real-Time Image Processing . ISSN 1861-8200 (Print) 1861-8219 (Online)

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Official URL: http://dx.doi.org/10.1007/s11554-014-0471-5

Abstract

Intra prediction algorithm in the recently developed high efficiency video coding (HEVC) standard has very high computational complexity. Therefore, in this paper, we propose pixel equality and pixel similarity based techniques for reducing amount of computations performed by HEVC intra prediction algorithm and, therefore, reducing energy consumption of HEVC intra prediction hardware. The proposed techniques significantly reduce the amount of computations performed by 4 × 4 and 8 × 8 luminance angular prediction modes with a small comparison overhead. Pixel equality based technique does not affect the PSNR and bit rate. Pixel similarity based technique increases the PSNR slightly for some video frames and it decreases the PSNR slightly for some video frames. We also designed and implemented a low energy HEVC intra prediction hardware for 4 × 4 and 8 × 8 angular prediction modes including the proposed techniques using Verilog HDL. The proposed techniques significantly reduce the energy consumption of this HEVC intra prediction hardware.

Item Type:Article
Uncontrolled Keywords:HEVC - Intra prediction - Low energy - Hardware implementation - FPGA
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101-6720 Telecommunication
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK1-4661 Electrical engineering. Electronics Nuclear engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
ID Code:25982
Deposited By:İlker Hamzaoğlu
Deposited On:12 Dec 2014 10:15
Last Modified:12 Dec 2015 21:34

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