High-definition multimedia for multiparty low-latency interactive communication
Future Generation Computer Systems - IGrid 2005: The global lambda integrated facility
Interactive 3D HD video transport for e-science collaboration over UCLP-enabled GLORIAD lightpath
Future Generation Computer Systems - IGrid 2005: The global lambda integrated facility
International real-time streaming of 4K digital cinema
Future Generation Computer Systems - IGrid 2005: The global lambda integrated facility
Real time switching and streaming transmission of uncompressed 4K motion pictures
Future Generation Computer Systems
Introduction to GPU Programming with GLSL
SIBGRAPI-TUTORIALS '09 Proceedings of the 2009 Tutorials of the XXII Brazilian Symposium on Computer Graphics and Image Processing
Computer Science - Research and Development
Beyond 4K: 8K 60p live video streaming to multiple sites
Future Generation Computer Systems
A collaborative computing model for audio post-production
Future Generation Computer Systems
Real-time long-distance transfer of uncompressed 4K video for remote collaboration
Future Generation Computer Systems
Multi-point 4K/2K layered video streaming for remote collaboration
Future Generation Computer Systems
Low GPU occupancy approach to fast arithmetic coding in JPEG2000
MEMICS'11 Proceedings of the 7th international conference on Mathematical and Engineering Methods in Computer Science
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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.