Jiri Matela

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Embedded Block Coding with Optimal Truncation (EBCOT) is the fundamental and computationally very demanding part of the compression process of JPEG2000 image compression standard. In this paper, we present a refor-mulation of the context modeling of EBCOT that allows full parallelization for massively parallel architectures such as GPUs with their single(More)
This paper gives a brief overview of UltraGrid---a high-quality video transmission software. Employing a commodity PC and Mac hardware, UltraGrid allows for transmission of video in resolutions ranging through HD up to 2160p/4K with end-to-end latency as low as 75ms. The high-quality is achieved either by transmitting uncompressed video streams or streams(More)
Embedded Block Coding with Optimal Truncation (EBCOT) is the fundamental and computationally very demanding part of the compression process of JPEG2000 image compression standard. EBCOT itself consists of two tiers. In Tier-1, image samples are compressed using context modeling and arithmetic coding. Resulting bit-stream is further formated and truncated in(More)
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