Artigo
Melhora de uma métrica de qualidade de vídeo utilizando o parâmetro correspondente ao tipo de conteúdo de vídeo
Improving a video quality metric with the video content type parameter
Registro en:
RODRIGUEZ, D. Z.; ROSA, R. L.; BRESSAN, G. Melhora de uma métrica de qualidade de vídeo utilizando o parâmetro correspondente ao tipo de conteúdo de vídeo. Revista IEEE America Latina, [S.l.], v. 12, n. 4, jun. 2014.
repositorio.ufla.br/jspui/handle/1/15587
Autor
Rodriguez, Demostenes Zegarra
Rosa, Renata Lopes
Bressan, Graça
Institución
Resumen
Nowadays, there are several multimedia services,
which are carried via IP networks. From these services, the traffic
regarding video applications had the greatest growth in the last
years. In this context, the study of methods for assessing video
quality plays a very important role. In general, video quality
objective metrics are defined from mathematical models, which use
as inputs, different network or application layer parameters, and
the video quality assessment results from subjective tests. This
paper aims to demonstrate that the video quality metric
performance can be improved by adding a parameter regarding
the video content type. In order to perform video quality
assessment tests in a short time period, the so-called crowdsourcing
methodology is used. In this methodology remote users assess the
video quality. The experimental results show that the Video
streaming Quality Metric (VsQM) performance is improved when
the video content type is considered (eVsQM). Indeed, the Pearson
correlation factors between eVsQM and crowdsourcing results
reach 0.94 – 0.98, depending on the video degradation scenario.
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