Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Damian Karwowski"'
Publikováno v:
IEEE Access, Vol 11, Pp 16793-16800 (2023)
Hybrid video compression plays an invaluable role in digital video transmission and storage services and systems. It performs several-hundred-fold reduction in the amount of video data, which makes these systems much more efficient. An important elem
Externí odkaz:
https://doaj.org/article/6ba4ab510a474c3188a6a796550bd8f0
Autor:
Damian Karwowski
Publikováno v:
IEEE Access, Vol 9, Pp 65361-65368 (2021)
The new version of the Context-based Adaptive Binary Arithmetic Coding (CABAC) that is used in the latest Versatile Video Coding (VVC) technology is the state-of-the-art in the field of entropy compression of video data. This paper gives an in-depth
Externí odkaz:
https://doaj.org/article/87d5c85176aa475984c4a3437be88078
Autor:
Damian Karwowski
Publikováno v:
IEEE Access, Vol 8, Pp 32088-32099 (2020)
The algorithm of entropy coding that is now widely used in video compression is the Context-based Adaptive Binary Arithmetic Coding (CABAC). This paper presents a modified, improved version of CABAC, called the CABAC+. The author's idea for the impro
Externí odkaz:
https://doaj.org/article/4eff5473f3b74a918dba1397471c4669
Autor:
Tomasz Grajek, Jakub Stankowski, Damian Karwowski, Krzysztof Klimaszewski, Olgierd Stankiewicz, Krzysztof Wegner
Publikováno v:
IEEE Access, Vol 7, Pp 96764-96774 (2019)
This paper presents a detailed, quantitative analysis of video quality losses in a homogeneous HEVC video transcoder together with the analysis of the origin of those quality losses and the influence of quantization step alignment on transcoding. Wit
Externí odkaz:
https://doaj.org/article/583e427250314523bf4a2a39b20dbf69
Autor:
Olgierd Stankiewicz, Krzysztof Wegner, Damian Karwowski, Jakub Stankowski, Krzysztof Klimaszewski, Tomasz Grajek
Publikováno v:
International Journal of Electronics and Telecommunications, Vol vol. 64, Iss No 3 (2018)
Optimization of encoding process in video compression is an important research problem, especially in the case of modern, sophisticated compression technologies. In this paper, we consider HEVC, for which a novel method for selection of the encoding
Externí odkaz:
https://doaj.org/article/724d7785d90a4a09a1ad81ddcb982e1b
Autor:
Damian Karwowski, Marek Domański
Publikováno v:
International Journal of Electronics and Telecommunications, Vol vol. 64, Iss No 3 (2018)
The paper presents Improved Adaptive Arithmetic Coding algorithm for application in future video compression technology. The proposed solution is based on the Context-based Adaptive Binary Arithmetic Coding (CABAC) technique and uses the authors mech
Externí odkaz:
https://doaj.org/article/fdbd2ec314414bc8befb5a0532b039fe
Autor:
Jakub Stankowski, Damian Karwowski, Tomasz Grajek, Olgierd Stankiewicz, Krzysztof Klimaszewski, Krzysztof Wegner
Publikováno v:
IEEE Access, Vol 7, Pp 96764-96774 (2019)
This paper presents a detailed, quantitative analysis of video quality losses in a homogeneous HEVC video transcoder together with the analysis of the origin of those quality losses and the influence of quantization step alignment on transcoding. Wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0908094a363205e8e3f644ab51a0d2c5
https://ieeexplore.ieee.org/document/8760474/
https://ieeexplore.ieee.org/document/8760474/
Publikováno v:
2018 International Conference on Signals and Electronic Systems (ICSES).
This article presents a scheme of image blocks scanning, called radial scanning, that enables massive parallelization of video compression and decompression. The proposed scheme enables parallel processing of image blocks when still using the context
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5983dd786dc6f9ae698bd7d87fe8c007
https://doi.org/10.1109/icses.2018.8507314
https://doi.org/10.1109/icses.2018.8507314
Autor:
Jakub Stankowski, Jakub Siast, Olgierd Stankiewicz, Marek Domanski, Damian Karwowski, Krzysztof Klimaszewski, Krzysztof Wegner, Tomasz Grajek
Publikováno v:
International Journal of Electronics and Telecommunications. 61:121-127
In this paper, a detailed analysis of the content of the bitstream, produced by the HEVC video encoder is presented. With the use of the HM 10.0 reference software the following statistics were investigated: 1) the amount of data in the encoded strea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d46db5f0dde4b79c895cea23a60c24d
https://doi.org/10.1515/eletel-2015-0015
https://doi.org/10.1515/eletel-2015-0015
Autor:
Jakub Stankowski, Tomasz Grajek, Olgierd Stankiewicz, Damian Karwowski, Krzysztof Klimaszewski, Krzysztof Wegner
Publikováno v:
IWSSIP
In this paper, a novel method of transcoding of HEVC encoded video is presented. The novel approach enables a very fast transcoding without the need for the image reconstruction. It is based on the principle of removing of the carefully selected coef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2276d454edc54cc2334884be5267806d
https://doi.org/10.1109/iwssip.2017.7965588
https://doi.org/10.1109/iwssip.2017.7965588