Subjective Quality Analysis of Bit Rate Exchange Between Temporal and SNR Scalability in the MPEG4 SVC Extension

Barzilay, M.A.J.; Taal, Jacco; Lagendijk, Reginald L.

doi:10.1109/icip.2007.4379148

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…Hsu and Hefeeda [19] also work with scalability, aiming to find the ideal granularity and transmission rate of video layers coded using the quality scalability provided by SVC to maximize the perceived quality of these videos. Another relevant research analyzes the advantages and disadvantages of the exchange between temporal and quality scalability, i.e., lowering the frame rate and increasing the PSNR of the frames but maintaining the same bitrate [20]. Until now we couldn't find works with extensive quality assessments of scalable videos that analyze the relationship between the scalability methods and/or the effects of instability, which are the objectives of this work.…”

Section: Related Workmentioning

confidence: 97%

Subjective video quality assessment applied to scalable video coding and transmission instability

Daronco

Roesler

Lima

2010

Proceedings of the 2010 ACM Symposium on Applied Computing

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This paper presents a study of subjective quality of scalable video sequences, coded using the scalable extension of the H.264 standard (SVC). A group of experiments was performed to measure, primarily, the effects that the transmission instability has in the video quality and the relationship between the three scalability methods (spatial, temporal and quality) in terms of subjective quality. The decisions taken to model the tests were based on layered transmission systems that use protocols for adaptability and congestion control. To run the subjective assessments we used the ACR-HRR methodology and recommendations given by ITU-R Rec. BT.500 and ITU-T Rec. P.910. The results show that the instability modeled does not cause signifficant alterations on the overall video quality when compared to a stable video and that temporal scalability usually produces videos with worse quality than spatial and quality scalabilities, the latter being the one with the better quality.

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Section: Related Workmentioning

confidence: 97%

Subjective video quality assessment applied to scalable video coding and transmission instability

Daronco

Roesler

Lima

2010

Proceedings of the 2010 ACM Symposium on Applied Computing

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“…The emerging MPEG-4 SVC standard, however, has not been tested in such a manner. Although both objective [26] and subjective tests [4] have already been run separately, an analysis offering both test methodologies was yet outstanding. The results of the subjective evaluation of the SVC reference CODEC [4] are limited to the quality change if temporal levels are reduced in exchange for higher video quality.…”

Section: Related Workmentioning

confidence: 99%

“…Although both objective [26] and subjective tests [4] have already been run separately, an analysis offering both test methodologies was yet outstanding. The results of the subjective evaluation of the SVC reference CODEC [4] are limited to the quality change if temporal levels are reduced in exchange for higher video quality. Besides that, the MPEG-4 SVC CODEC was also evaluated in an official ISO test [9], which did however not assess a broad range of quality-impacting parameters, but only tested a few basic features.…”

Section: Related Workmentioning

confidence: 99%

Quality Assessment of the MPEG-4 Scalable Video CODEC

Niedermeier

Kosch

2009

Image Analysis and Processing – ICIAP 2009

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In this paper, the performance of the emerging MPEG-4 SVC CODEC is evaluated. In the first part, a brief introduction on the subject of quality assessment and the development of the MPEG-4 SVC CODEC is given. After that, the used test methodologies are described in detail, followed by an explanation of the actual test scenarios. The main part of this work concentrates on the performance analysis of the MPEG-4 SVC CODEC -both objective and subjective.

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“…Outro trabalho relevante que utiliza o H.264 SVC investiga a redução no número de quadros por segundo de um vídeo para permitir o aumento da qualidade (PSNR) dos quadros restantes, ou seja, a troca entre as escalabilidades temporal e de qualidade (BAR-ZILAY; TAAL; LAGENDIJK, 2007). O trabalho utiliza a ferramenta VQM para análise da qualidade dos vídeos, que são codificados com diferentes taxas de quadros por segundo através do uso da técnica de quadros B hierárquicos existente no padrão H.264 SVC.…”

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