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Main Title: An Optimized Parallel IDCT on Graphics Processing Units
Author(s): Wang, Biao
Álvarez-Mesa, Mauricio
Chi, Chi Ching
Juurlink, Ben
Type: Book Part
Language Code: en
Is Part Of: 10.1007/978-3-642-36949-0
Abstract: In this paper we present an implementation of the H.264/AVC Inverse Discrete Cosine Transform (IDCT) optimized for Graphics Processing Units (GPUs) using OpenCL. By exploiting that most of the input data of the IDCT for real videos are zero valued coefficients a new compacted data representation is created that allows for several optimizations. Experimental evaluations conducted on different GPUs show average speedups from 1.7× to 7.4× compared to an optimized single-threaded SIMD CPU version.
Issue Date: 2013
Date Available: 12-Apr-2018
DDC Class: 004 Datenverarbeitung; Informatik
Subject(s): IDCT
parallel programming
Book Title: Euro-Par 2012: Parallel Processing Workshops
Editor: Caragiannis, Ioannis
Publisher: Springer
Publisher Place: Berlin; Heidelberg
Publisher DOI: 10.1007/978-3-642-36949-0_18
Page Start: 155
Page End: 164
Series: Lecture Notes in Computer Science
Series Number: 7640
EISSN: 1611-3349
ISBN: 978-3-642-36949-0
ISSN: 0302-9743
Appears in Collections:FG Architektur eingebetteter Systeme » Publications

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