DocumentCode :
2640489
Title :
Mapping Control-Intensive Video Kernels onto a Coarse-Grain Reconfigurable Architecture: the H.264/AVC Deblocking Filter
Author :
Arbelo, C. ; Kanstein, A. ; López, S. ; López, J.F. ; Berekovic, M. ; Sarmiento, R. ; Mignolet, J.-Y.
Author_Institution :
Dept. of Electron. Eng. & Control, Las Palmas de Gran Canaria Univ.
fYear :
2007
fDate :
16-20 April 2007
Firstpage :
1
Lastpage :
6
Abstract :
Deblocking filtering represents one of the most compute intensive tasks in an H.264/AVC standard video decoder due to its demanding memory accesses and irregular data flow. For these reasons, an efficient implementation poses big challenges, especially for programmable platforms. In this sense, the mapping of this decoder´s functionality onto a C-programmable coarse-grained reconfigurable architecture named ADRES (architecture for dynamically reconfigurable embedded systems) is presented in this paper, including results from the evaluation of different topologies. The results obtained show a considerable reduction in the number of cycles and memory accesses needed to perform the filtering as well as an increase in the degree of instruction parallelism (ILP) when compared with an implementation on a very long instruction word (VLIW) dedicated processor. This demonstrates that high ILP is achievable on the ADRES even for irregular, data-dependent kernels
Keywords :
embedded systems; filtering theory; instruction sets; parallel architectures; reconfigurable architectures; video codecs; H.264/AVC deblocking filter; H.264/AVC standard video decoder; VLIW processor; architecture for dynamically reconfigurable embedded systems; coarse-grain reconfigurable architecture; control-intensive video kernels; instruction parallelism; very long instruction word processor; Automatic voltage control; Data flow computing; Decoding; Embedded system; Filtering; Filters; Kernel; Reconfigurable architectures; Topology; VLIW;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Design, Automation & Test in Europe Conference & Exhibition, 2007. DATE '07
Conference_Location :
Nice
Print_ISBN :
978-3-9810801-2-4
Type :
conf
DOI :
10.1109/DATE.2007.364587
Filename :
4211792
Link To Document :
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