title   
  

An efficient hardware architecture for quarter-pixel accurate H.264 motion estimation

Öktem, Serkan Hikmet and Hamzaoğlu, İlker (2007) An efficient hardware architecture for quarter-pixel accurate H.264 motion estimation. In: 10th Euromicro Conference on Digital System Design, Lübeck, Germany

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Official URL: http://dx.doi.org/10.1109/DSD.2007.4341507

Abstract

In this paper, we present an efficient hardware architecture for real-time implementation of quarter-pixel accurate variable block size motion estimation for H.264 / MPEG4 Part 10 video coding. The proposed hardware performs quarter-pixel interpolation dynamically, i.e. only the quarter pixels necessary for performing quarter-pixel accurate search at the location pointed by the half-pixel motion vector are calculated. This reduces the amount of computation performed for quarter-pixel interpolation, and therefore reduces the power consumption of the quarter-pixel accurate motion estimation hardware. This hardware is designed to be used as part of a complete H. 264 video coding system for portable applications. The proposed hardware architecture is implemented in Verilog HDL. The Verilog RTL code is verified to work at 60 MHz in a Xilinx Virtex IIFPGA. The FPGA implementation can process 34 VGA frames (640x480) per second.

Item Type:Papers in Conference Proceedings
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
ID Code:10732
Deposited By:İlker Hamzaoğlu
Deposited On:15 Nov 2008 14:43
Last Modified:25 May 2011 14:22

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