Design, implementation and evaluation of a task-parallel JPEG decoder for the Libjpeg-turbo library

Jingun Hong; Wasuwee Sodsong; Seongwook Chung; Cheong Ghil Kim; Yeongkyu Lim; Shin Dug Kim; Bernd Burgstaller

Design, implementation and evaluation of a task-parallel JPEG decoder for the Libjpeg-turbo library

Jingun Hong, Wasuwee Sodsong, Seongwook Chung, Cheong Ghil Kim, Yeongkyu Lim, Shin Dug Kim, Bernd Burgstaller

Department of Computer Science

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

In this paper, we propose a task-parallel programming extension for the JPEG decoder of the libjpeg-turbo library. Efficient JPEG decoding is especially important for resource-constrained mobile devices such as smartphones, where decoding (e.g., browsing of web pages containing images, image search aso) is far more common than image encoding. The aim of our work is to utilize multiple CPU cores for JPEG decompression from a single client thread. Our method is orthogonal to libjpeg-turbo's support for data-parallelism (SIMD). Experimental evaluation of our approach on a 4-core Intel i7-2600K CPU shows speed-ups of up to 2.5x over the sequential, and up to 34% over the SIMD-version of the libjpeg-turbo JPEG decoder.

Original language	English
Pages (from-to)	147-152
Number of pages	6
Journal	International Journal of Multimedia and Ubiquitous Engineering
Volume	7
Issue number	2
Publication status	Published - 2012

All Science Journal Classification (ASJC) codes

Computer Science(all)

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title = "Design, implementation and evaluation of a task-parallel JPEG decoder for the Libjpeg-turbo library",

abstract = "In this paper, we propose a task-parallel programming extension for the JPEG decoder of the libjpeg-turbo library. Efficient JPEG decoding is especially important for resource-constrained mobile devices such as smartphones, where decoding (e.g., browsing of web pages containing images, image search aso) is far more common than image encoding. The aim of our work is to utilize multiple CPU cores for JPEG decompression from a single client thread. Our method is orthogonal to libjpeg-turbo's support for data-parallelism (SIMD). Experimental evaluation of our approach on a 4-core Intel i7-2600K CPU shows speed-ups of up to 2.5x over the sequential, and up to 34% over the SIMD-version of the libjpeg-turbo JPEG decoder.",

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Design, implementation and evaluation of a task-parallel JPEG decoder for the Libjpeg-turbo library. / Hong, Jingun; Sodsong, Wasuwee; Chung, Seongwook; Kim, Cheong Ghil; Lim, Yeongkyu; Kim, Shin Dug ; Burgstaller, Bernd.

In: International Journal of Multimedia and Ubiquitous Engineering, Vol. 7, No. 2, 2012, p. 147-152.

Research output: Contribution to journal › Article › peer-review

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AU - Lim, Yeongkyu

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