Original scientific paper

https://doi.org/10.24138/jcomss.v6i2.189

Objective and Subjective Evaluation of Spatially Transcoded Videos for Mobile Receivers

Carlos D. M. Regis orcid.org/0000-0002-3555-0024 ; Federal University of Campina Grande (UFCG), Campina Grande, Brazil
Raissa B. Rocha ; Federal University of Campina Grande (UFCG), Campina Grande, Brazil
Mylene C. Q. Farias ; University of Brasilia (UnB), Bras´ılia, Brazil
Marcelo S. Alencar orcid.org/0000-0002-2849-1644 ; Federal University of Campina Grande (UFCG), Campina Grande, Brazil

Abstract

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.

Keywords

Mobile TV; Performance evaluation; Video coding and processing; Transcoding

Hrčak ID:

180402

URI

https://hrcak.srce.hr/180402

Publication date:

22.6.2010.

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