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Wyszukujesz frazę "video quality" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Objective Video Quality Method Based on Mutual Information and Human Visual System
Autorzy:
Mardiak, M.
Polec, J.
Powiązania:
https://bibliotekanauki.pl/articles/227280.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
objective video quality
HVS
mutual information
VQM
SSIM
PSNR
Opis:
In this paper we present the objective video quality metric based on mutual information and Human Visual System. The calculation of proposed metric consists of two stages. In the first stage of quality evaluation whole original and test sequence are pre-processed by the Human Visual System. In the second stage we calculate mutual information which has been utilized as the quality evaluation criteria. The mutual information was calculated between the frame from original sequence and the corresponding frame from test sequence. For this testing purpose we choose Foreman video at CIF resolution. To prove reliability of our metric were compared it with some commonly used objective methods for measuring the video quality. The results show that presented objective video quality metric based on mutual information and Human Visual System provides relevant results in comparison with results of other objective methods so it is suitable candidate for measuring the video quality.
Źródło:
International Journal of Electronics and Telecommunications; 2012, 58, 2; 145-152
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methodology for 3D Video Subjective Quality Evaluation
Autorzy:
Lewandowski, F.
Paluszkiewicz, M.
Grajek, T.
Wegner, K.
Powiązania:
https://bibliotekanauki.pl/articles/227349.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
3D video
video compression
subjective quality assessment
Opis:
The paper presents the methodology for 3D video subjective quality evaluation. Described methodology was designed to compare different 3D video compression technologies without an influence of any particular displaying or rendering technology. In addition detailed step by step description of test session design and preparation is provided. Experimental results for state-of-the-art 3D encoders are also included. All tests were conducted on two 3D monitors (polarization and autostereoscopic) thus influence of different displaying technologies on 3D video quality assessments has also been evaluated.
Źródło:
International Journal of Electronics and Telecommunications; 2013, 59, 1; 25-32
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance Evaluation of the TFD-capable Dynamic QoS Assurance of HD Video Streaming in Well-dimensioned Network
Autorzy:
Chodorek, A.
Chodorek, R. R.
Powiązania:
https://bibliotekanauki.pl/articles/226473.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quality of service assurance
performance evaluation
HD video streaming
heterogeneous IP network
traffic flow description option
Opis:
The Traffic Flow Description (TFD) option of the IP protocol is an experimental option, designed by the Authors and described by the IETF’s Internet Draft. This option was intended for signalling for QoS purposes. Knowledge about forthcoming traffic (such as the amount of data that will be transferred in a given period of time) is conveyed in the fields of the option between end-systems. TFD-capable routers on a path (or a multicast tree) between the sender and receiver(s) are able to read this information, process it and use it for bandwidth allocation. If the time horizons are short enough, bandwidth allocation will be performed dynamically. In the paper a performance evaluation of an HD video transmission QoS assured with the use of the TFD option is presented. The analysis was made for a variable number of video streams and a variable number of TCP flows that compete with the videos for the bandwidth of the shared link. Results show that the dynamic bandwidth allocation using the TFD option better assures the QoS of HD video than the classic solution, based on the RSVP protocol.
Źródło:
International Journal of Electronics and Telecommunications; 2018, 64, 3; 357-364
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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