GPU-accelerated DXT and JPEG compression schemes for low-latency network transmissions of HD, 2K, and 4K video

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Publikace nespadá pod Lékařskou fakultu, ale pod Ústav výpočetní techniky. Oficiální stránka publikace je na webu muni.cz.
Název česky GPU-akcelerovaná kompresní schémata JPEG a DXT pro nízkolatenční síťové přenosy HD, 2K a 4K videa
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HOLUB Petr ŠROM Martin PULEC Martin MATELA Jiří JIRMAN Martin

Rok publikování 2013
Druh Článek v odborném periodiku
Časopis / Zdroj Future Generation Computer Systems
Fakulta / Pracoviště MU

Ústav výpočetní techniky

Citace
www URL
Doi http://dx.doi.org/10.1016/j.future.2013.06.006
Obor Informatika
Klíčová slova GPU-accelerated compression; Video processing; Low-latency compression; DXT1; DXT5 View the MathML sourceYView the MathML sourceCoView the MathML sourceCg ; Motion JPEG; Parallel Huffman coding; Parallel run-length coding;
Přiložené soubory
Popis Low-latency transmissions of high resolution video such as HD, 2K, or 4K over both Internet and private IP networks have found a foothold in many interactive applications, ranging from collaborative environments in science and medicine to the arts and entertainment industry. In this paper we demonstrate how the power of commodity graphics processing units can be used for efficient implementation of JPEG and DXT compression. We propose an approach to fine-grained parallelization of JPEG compression and the use of auxiliary indexes for efficient decompression, which are backward compatible with the JPEG standard. In-depth performance analysis is provided to show various aspects of the proposed parallelization including the dependency on image content and on various settings of the compression algorithm, as well as the impact of compression for interactive applications in terms of end-to-end latency. The applicability of these compression schemes in medicine and cinematography has also been evaluated using double-blind ABX tests compared with uncompressed video. We describe selected successful real-world deployment use cases based on our open-source implementation within the UltraGrid framework, such as trans-Atlantic 4K interactive video streaming during the CineGrid 2011 workshop. As discussed in the paper, the proposed approaches to parallelization provide sufficient performance even for the future generation of 8K video processing systems, currently limited by availability of camera and display hardware.
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