Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Jose Joskowicz"'
Autor:
Jose Joskowicz, Rafael Sotelo
Publikováno v:
Memoria Investigaciones en Ingeniería, Iss 5 (2019)
En este artículo se realiza un estudio de la medición de Calidad de Voz en redes IP. Se presentan los métodos y arquitecturas de medición aceptados, estandarizados y normalizados, así como el “estado del arte” en la materia a través de un e
Externí odkaz:
https://doaj.org/article/4588451960514770a2cf685551b92715
Publikováno v:
Memoria Investigaciones en Ingeniería, Iss 14, Pp 7-14 (2016)
La interactividad con contenido lineal como “a demanda” provisto por las emisoras de Televisión Digital terrestre es un requerimiento cada vez mayor por parte de los televidentes. Esta tecnología ha evolucionado hasta el concepto actual de Tel
Externí odkaz:
https://doaj.org/article/95b16671ab364643a993a2c181e0fb71
Autor:
Jose Joskowicz, Rafael Sotelo
Publikováno v:
International Journal of Digital Multimedia Broadcasting, Vol 2014 (2014)
This paper presents a model to predict video quality perceived by the broadcast digital television (DTV) viewer. We present how noise on DTV can introduce individual transport stream (TS) packet losses at the receiver. The type of these errors is dif
Externí odkaz:
https://doaj.org/article/2bff452b45444473bdd14cf0ecdd9cae
Publikováno v:
Wiley Encyclopedia of Electrical and Electronics Engineering
Publikováno v:
2022 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB).
Autor:
Rafael Sotelo, Jose Joskowicz
Publikováno v:
2020 IEEE Congreso Bienal de Argentina (ARGENCON).
ITU-T Study Group 12 is working in a collaborativeproject to develop a computational model to assess QoS and QoE of videotelephony services. The project is being developed in the context of the G.CMVTQS work item. This paper briefly presents the ongo
Publikováno v:
IEEE Transactions on Broadcasting. 64:709-720
This paper shows that the coexistence of HbbTV applications and ISDB-T broadcasting is possible, paving the way to adopt HbbTV as a global hybrid standard. It presents the design of a prototype of a hybrid television system that integrates the ISDB-T
Publikováno v:
IEEE Transactions on Broadcasting. 62:770-784
We present a novel combination of full reference (FR) and no reference (NR) quality models to estimate quality of experience of TV viewers in different locations of a digital TV station coverage area. An NR method is employed at a reference node with
Publikováno v:
2018 IEEE Broadcast Symposium (BTS).
This paper extends to 4K or Ultra High Definition (UHD) the scope of a parametric model for perceptual video quality estimation, which has been previously designed for resolutions from Quarter Common Intermediate Format (QCIF) up to High Definition (
Publikováno v:
BMSB
This article presents an application developed to automate subjective quality video assessments, in 4K and lower resolutions. It supports different subjective tests methods, including five-grade Absolute Category Rating (ACR), nine-grade ACR and Cont