Perceived Quality of Full HD Video - Subjective Quality Assessment

Bienik, Juraj; Uhrina, Miroslav; Vaculik, Martin; Mizdos, Tomas

doi:10.15598/aeee.v14i4.1831

Cited by 6 publications

(3 citation statements)

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“…As soon as these parameters are exceeded, the service becomes unusable. During the transmission of data, there can be several possible causes of problems on the way from the sender to the evaluation, namely on the MSE, PSNR and SSIM described in more detail below, and supplemented them with real measured values in later chapters [2,17,18].…”

Section: Factors Affecting the Quality Of Audio And Video Servicesmentioning

confidence: 99%

“…The H.264 codecs allow reducing the capacity demands for the transmission of video data streams to one half or one third when compared to MPEG-2, which makes them an ideal type of codec for any kind of broadcast. The following chapters state all measurement methodologies for Triple Play services in EPON networks [2,17,18].…”

Section: Measurement Of Triple Play Services In Epon Networkmentioning

confidence: 99%

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Deployment and Measurement of Quality of Service Parameters for Triple Play Services in Optical Access Networks

Látal¹,

Králík²,

Wilcek³

et al. 2017

Komunikácie

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Broadband telecommunication networks are the future of communication and distribution of multimedia services. Thanks to the high transmission potential and capacity of optical fibres, the optical networks are predestined to be more widely used in telecommunications considering the higher data rates through Triple Play services. This paper describes the impact of selected quality parameters on multimedia services defined as Triple Play within an optical network based on the EPON standard. The Triple Play services are then evaluated with measuring instruments and software applications according to QoS requirements and using evaluation methods based on generally defined standards. These are mainly subjective (listening and conversational) and objective (MSE, PSNR, SSIM) methods, or parameters (MOS) and factors (bitrate, delay, packet loss rate, jitter, BER) that are defined for the respective service. The values measured during the experimental tests were related to the limiting parameters of optical topology based on EPON networks for individual services according to their QoS requirements and objective user evaluation.

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Section: Factors Affecting the Quality Of Audio And Video Servicesmentioning

confidence: 99%

Section: Measurement Of Triple Play Services In Epon Networkmentioning

confidence: 99%

Deployment and Measurement of Quality of Service Parameters for Triple Play Services in Optical Access Networks

Látal¹,

Králík²,

Wilcek³

et al. 2017

Komunikácie

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“…Two different sequences at both resolutions (Full HD and Ultra HD) were tested using the DSIS method. Bienik et al [ 48 ] measured the impact of the compression formats, namely H.264, H.265, and VP9 on perceived video quality. The evaluation was performed on four Full HD sequences using the Absolute Category Rating (ACR) and DSCQS methods.…”

Section: Introductionmentioning

confidence: 99%

Impact of Scene Content on High Resolution Video Quality

Uhrina

Holesova

Bienik

et al. 2021

Sensors

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This paper deals with the impact of content on the perceived video quality evaluated using the subjective Absolute Category Rating (ACR) method. The assessment was conducted on eight types of video sequences with diverse content obtained from the SJTU dataset. The sequences were encoded at 5 different constant bitrates in two widely video compression standards H.264/AVC and H.265/HEVC at Full HD and Ultra HD resolutions, which means 160 annotated video sequences were created. The length of Group of Pictures (GOP) was set to half the framerate value, as is typical for video intended for transmission over a noisy communication channel. The evaluation was performed in two laboratories: one situated at the University of Zilina, and the second at the VSB—Technical University in Ostrava. The results acquired in both laboratories reached/showed a high correlation. Notwithstanding the fact that the sequences with low Spatial Information (SI) and Temporal Information (TI) values reached better Mean Opinion Score (MOS) score than the sequences with higher SI and TI values, these two parameters are not sufficient for scene description, and this domain should be the subject of further research. The evaluation results led us to the conclusion that it is unnecessary to use the H.265/HEVC codec for compression of Full HD sequences and the compression efficiency of the H.265 codec by the Ultra HD resolution reaches the compression efficiency of both codecs by the Full HD resolution. This paper also includes the recommendations for minimum bitrate thresholds at which the video sequences at both resolutions retain good and fair subjectively perceived quality.

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