Energy reduction techniques for H.264 deblocking filter hardware

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Adıbelli, Yusuf and Parlak, Mustafa and Hamzaoğlu, İlker (2011) Energy reduction techniques for H.264 deblocking filter hardware. IEEE Transactions on Consumer Electronics, 57 (3). pp. 1399-1407. ISSN 0098-3063

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Abstract

In this paper, we propose pixel equality and pixel similarity based techniques for reducing the amount of computations performed by H.264 Deblocking Filter (DBF) algorithm, and therefore reducing the energy consumption of H.264 DBF hardware. These techniques avoid unnecessary calculations in H.264 DBF algorithm by exploiting the equality and similarity of the pixels used in DBF equations. The proposed techniques reduce the amount of addition and shift operations performed by H.264 DBF algorithm up to 52% and 67% respectively with a small comparison overhead. The pixel equality based technique does not affect PSNR. The pixel similarity based technique does not affect the PSNR for some video frames, but it decreases the PSNR slightly for some video frames. We also implemented an efficient H.264 DBF hardware including the proposed techniques using Verilog HDL. The proposed pixel equality and pixel similarity based techniques reduced the energy consumption of this H.264 DBF hardware up to 35% and 39%, respectively. Therefore, they can be used in portable consumer electronics products that require real-time video compression.
Item Type: Article
Uncontrolled Keywords: Deblocking Filter , Energy Reduction , FPGA , H.264 , Hardware Implementation
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7885-7895 Computer engineering. Computer hardware
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Electronics
Faculty of Engineering and Natural Sciences
Depositing User: İlker Hamzaoğlu
Date Deposited: 04 Jan 2012 11:43
Last Modified: 30 Jul 2019 15:51
URI: https://research.sabanciuniv.edu/id/eprint/18002

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