Zobrazeno 1 - 10
of 60
pro vyhledávání: '"R. Vargic"'
Autor:
J. Prochaska, R. Vargic
Publikováno v:
Radioengineering, Vol 18, Iss 2, Pp 238-241 (2009)
We present a new method to estimate the Hurst parameter. The method exploits the form of the autocorrelation function for second-order self-similar processes and is based on one-pass digital filtration. We compare the performance and properties of th
Externí odkaz:
https://doaj.org/article/ccd10d0506aa4b819f63bc2544ebfd1f
Autor:
R. Vargic, J. Prochaska
Publikováno v:
Radioengineering, Vol 16, Iss 4, Pp 110-113 (2007)
In this paper we analyze the relationship between integer Lifting scheme and Rounding transform as means to compute the wavelet transform in signal processing area. We bring some new results which better describe relationship, reversibility and equiv
Externí odkaz:
https://doaj.org/article/97679ffaf241467fa95eae240cdb6907
Autor:
R. Vargic
Publikováno v:
Radioengineering, Vol 7, Iss 4 (1998)
In this paper is constructed a new type of two-dimensional wavelet transform. Construction is based on lifting scheme. We transform 1D wavelets with symmetrical factorisation to their 2D counterparts. Comparison to existing similar 2D wavelet constru
Externí odkaz:
https://doaj.org/article/37ddda0da4764e5abe9ec2baaaf36618
Publikováno v:
Telecommunication Systems. 52:1705-1711
This article proposes a solution for two issues in current communications. Firstly, that IMS suffers from lack of clients. Secondly, that mobile operators want to give the subscriber a possibility to access their VoIP network and efficiently cover sp
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Publikováno v:
2015 IEEE 19th International Conference on Intelligent Engineering Systems (INES).
Human computer interaction has great variety of options. Beside others the brain computer interface (BCI) using noninvasive acquisition methods gains attraction in the last years. The area is still under massive development along with advances in the
Publikováno v:
2015 IEEE 19th International Conference on Intelligent Engineering Systems (INES).
SPIHT algorithm is well known reference for image coding algorithms. In this paper we present its specific extension called SM SPIHT related to region of interest encoding (ROI) but extending this approach further, ending with individual weight of im
Publikováno v:
2008 Third International Conference on Convergence and Hybrid Information Technology.
This article focuses on the interconnection border control function (IBCF) entity in the current IP multimedia subsystem (IMS) architecture. Based on the analysis of various types of IMS interconnection scenarios, we describe our proof-of concept sol
Publikováno v:
2007 International Conference on Convergence Information Technology (ICCIT 2007).
This article proposes a solution for two issues in current communications. Firstly, that IMS suffers from client inexistence. Secondly, that mobile operators want to give the subscriber a possibility to access their VoIP network and efficiently cover
Autor:
R. Vargic, J. Prochaska
Publikováno v:
IEEE International Conference on Industrial Technology, 2003.
We present an approach to compression of segmented images using wavelet transform followed by modified baseline coder. Baseline coder processes the spectral values from all segments in non-segmented style, i.e. together in one big block. Proposed sch