Objective and Subjective Evaluation of Spatially Transcoded Videos for Mobile Receivers

Autor:	Carlos D. M. Regis, Raissa B. Rocha, Mylene C. Q. Farias, Marcelo S. Alencar
Jazyk:	angličtina
Rok vydání:	2010
Předmět:	Mobile TV Performance evaluation Video coding and processing Transcoding Computer software QA76.75-76.765
Zdroj:	Journal of Communications Software and Systems, Vol 6, Iss 2, Pp 49-55 (2010)
Druh dokumentu:	article
ISSN:	1845-6421 1846-6079
Popis:	Digital television produces video signals with different bit rates, encoding formats, and spatial resolutions. To deliver video to users with different receivers, the content needs to be dynamically adapted. Transcoding devices convert video from one format into another. The reception of digital videos using mobile receivers, implies that the spatial resolution of the video must be adjusted to fit the small display. This paper presents subjective and objective quality analysis of spatially transcoded videos. Transcoding algorithms that downsample the video frames using the moving average, median, mode, weighted average and sigma filters are considered.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/8748b4e6f50a43ceb6c9fcad8617231a Zobrazit plný text záznamu View record in DOAJ