2021 13th International Conference on Quality of Multimedia Experience (QoMEX)最新文献_第2页

“A Crowdsourcing-based QoE Evaluation of an Immersive VR Autonomous Driving Experience” 基于众包的沉浸式VR自动驾驶体验QoE评价

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465390

Guilherme Daniel Gomes, R. Flynn, Niall Murray

引用次数: 1

Removing the Bias in Speech Quality Scores Collected in Noisy Crowdsourcing Environments 嘈杂众包环境下语音质量评分的消除偏差

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465442

Rafael Zequeira Jiménez, Gabriel Mittag, S. Möller

{"title":"Removing the Bias in Speech Quality Scores Collected in Noisy Crowdsourcing Environments","authors":"Rafael Zequeira Jiménez, Gabriel Mittag, S. Möller","doi":"10.1109/QoMEX51781.2021.9465442","DOIUrl":"https://doi.org/10.1109/QoMEX51781.2021.9465442","url":null,"abstract":"Subjective speech quality scores needed to train models for the automatic evaluation of telecommunication systems have generally been collected by conducting demanding laboratory tests. Alternatively, crowdsourcing has emerged as a valid method to address user-centered studies to a large pool of users over the Internet. However, crowdsourcing users often do not follow the instructions and may execute the assigned task in noisy environments. The validity of the data collected in a disturbed environment is questionable, especially in speech quality assessment and other audio-related tasks. This work investigates the applicability of different ensemble-based and non-linear models to correct the bias found in speech quality ratings given to a German speech dataset in noisy crowdsourcing environments. Such a model would help to avoid throwing away quality scores that could be used. The model was trained with data collected in a speech quality assessment study conducted in a simulated crowdsourcing environment in the laboratory. Two groups of listeners rated the quality of speech stimuli in the presence of environmental noise at different levels. The noise under test was street traffic, and the levels ranged from 36dBA to 65. 5dBA. A fine-tuned gradient boosting regressor yielded the best results with a R2 score of 0.90 and RMSE of 0.416.","PeriodicalId":160378,"journal":{"name":"2021 13th International Conference on Quality of Multimedia Experience (QoMEX)","volume":"29 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114108301","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Focus Guided Light Field Saliency Estimation 聚焦引导光场显著性估计

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465428

Ailbhe Gill, Emin Zerman, Martin Alain, Mikael Le Pendu, A. Smolic

{"title":"Focus Guided Light Field Saliency Estimation","authors":"Ailbhe Gill, Emin Zerman, Martin Alain, Mikael Le Pendu, A. Smolic","doi":"10.1109/QoMEX51781.2021.9465428","DOIUrl":"https://doi.org/10.1109/QoMEX51781.2021.9465428","url":null,"abstract":"Light field imaging enables us to capture all light rays in a visual scene. As light fields are four-dimensional, their captures come with an increased amount of information to take advantage of. This has stimulated ongoing light field specific research into virtual viewpoints and shallow depth of field rendering, commonly called refocusing. However, the computation time and memory required to perform these operations can make tasks such as real-time rendering impractical. One solution is to exploit the salient information of light fields to focus resources on regions that attract visual attention when using these algorithms. Although saliency estimation methods for light fields have been previously explored, these focus mainly on salient object segmentation with the goal of generating one saliency map per light field.Aiming to create a basis for a 4D saliency prediction model analogous to light fields, this paper proposes a saliency estimation method specific to light fields that considers the refocusing operation. The proposed method modifies an existing view rendering algorithm with focus guidance, obtained from the light field disparity. This facilitates the construction of saliency maps without the need to render the corresponding view itself, which will help to speed up processing operations that are compatible. The results show that the proposed saliency estimation approach yields very good predictions of visual attention across multiple planes of the light field. We anticipate that this approach can be extended for a range of rendering applications.","PeriodicalId":160378,"journal":{"name":"2021 13th International Conference on Quality of Multimedia Experience (QoMEX)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123677025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Parametric Audio-visual Quality Measurement Based on Interpretable Fuzzy Logic 基于可解释模糊逻辑的参数化视听质量测量

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465453

Fatima Boudjerida, A. Lahoulou, T. Falk, Z. Akhtar

引用次数: 0

Relationship Status: It’s Complicated. Using APM as a QoE-qualifying Tempo Metric 关系现状:很复杂。使用APM作为符合qos要求的节奏指标

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465396

Florian Metzger, Norman Stulier, Kathrin Borchert, Matthias Hirth

{"title":"Relationship Status: It’s Complicated. Using APM as a QoE-qualifying Tempo Metric","authors":"Florian Metzger, Norman Stulier, Kathrin Borchert, Matthias Hirth","doi":"10.1109/QoMEX51781.2021.9465396","DOIUrl":"https://doi.org/10.1109/QoMEX51781.2021.9465396","url":null,"abstract":"The results of studies investigating the perceived quality of different video games in various environments are often not easy to compare. While one input delay value might be perfectly fine for one game, it might completely break immersion and flow in another. Typically, one would assume that video games can be categorized based on their genre to reach a certain comparability, but that has not proven true in the past. Thus, efforts are made to find new ways of categorization for this issue that are based on objective and quantifiable metrics. In this work, we focus on the merits of Actions per Minute (APM) as one such candidate metric as there is already preliminary usage of the metric for this purpose in the literature. We explore a diverse dataset of real-world DOTA 2 matches and try to understand the characteristics and stability of APM and its relationship to other game-centric and player-centric objective metrics. This is an initial attempt to understand how stable such a metric would be even for just one game in the larger quest to find a suitable cross-game categorization metric. Our exploration has uncovered player-specific influences in the APM. But we are confident that with a narrow, filtered definition of the APM this approach can be used to define APM ranges that resemble the tempo of a game to be used as a basis to classify games for Quality of Experience research.","PeriodicalId":160378,"journal":{"name":"2021 13th International Conference on Quality of Multimedia Experience (QoMEX)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131441068","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Performance Evaluation of Objective Image Quality Metrics on Conventional and Learning-Based Compression Artifacts 客观图像质量指标在传统和基于学习的压缩伪影上的性能评价

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465445

Michela Testolina, Evgeniy Upenik, J. Ascenso, F. Pereira, T. Ebrahimi

引用次数: 11

EVENT-CLASS: Dataset of events in the classroom EVENT-CLASS:教室中事件的数据集

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465389

Marta Orduna, Jesús Gutiérrez, Carlos Manzano, David Ruiz, J. Cabrera, César Díaz, P. Pérez, Narciso García

引用次数: 2

Groovability: Using Groove as a Novel Measure for Audio QoE with the Example of Smartphones Groovability:以智能手机为例，使用Groove作为音频QoE的新度量

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465440

Dominik Keller, Markus Vaalgamaa, E. Paajanen, Rakesh Rao Ramachandra Rao, Steve Goering, A. Raake

{"title":"Groovability: Using Groove as a Novel Measure for Audio QoE with the Example of Smartphones","authors":"Dominik Keller, Markus Vaalgamaa, E. Paajanen, Rakesh Rao Ramachandra Rao, Steve Goering, A. Raake","doi":"10.1109/QoMEX51781.2021.9465440","DOIUrl":"https://doi.org/10.1109/QoMEX51781.2021.9465440","url":null,"abstract":"Groove in music is a fundamental part of why humans entrain to it and enjoy it. Smartphones have become an important medium to listen to music. Especially when being with others, loudspeaker playback may be the method of choice. However, due to the physical limits of acoustics, for loudspeaker playback, smartphones are equipped with sub-optimal audio capabilities. Therefore, it is desirable to measure Quality of Experience (QoE) of music played on smartphones. While audio playback is often assessed in terms of sound quality, the aim of this work is to address QoE in terms of the meaning or effect that the audio has on the listener. A key component for the meaning of popular music is groove. Hence, in this paper, we study “groovability”, that is, the ability of a piece of audio technology to convey groove. To instantiate our novel audio QoE assessment method, we apply it to music played by 8 different smartphones. For this purpose, looped 4-bar loudness-aligned recordings from 24 music pieces of different intrinsic groove were played back on the different smartphones. Our test method uses a multi-stimulus comparison with synchronized playback capability. A total of 62 subjects evaluated groovability using two stimulus subsets. It was found that the proposed methodology is highly effective to distinguish between the groovability provided by the considered phones. In addition, a reduced-reference model is proposed to predict groovability, using a set of both acoustics-and music-groove related features. In our formal validation on unknown data, the model is shown to provide good prediction performance with a Pearson correlation of greater than 0.90.","PeriodicalId":160378,"journal":{"name":"2021 13th International Conference on Quality of Multimedia Experience (QoMEX)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132333430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Towards the Influence of Audio Quality on Gaming Quality of Experience 浅谈音频质量对游戏体验质量的影响

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465450

Steven Schmidt, Saman Zadtootaghaj, Shijie Wang, S. Möller

{"title":"Towards the Influence of Audio Quality on Gaming Quality of Experience","authors":"Steven Schmidt, Saman Zadtootaghaj, Shijie Wang, S. Möller","doi":"10.1109/QoMEX51781.2021.9465450","DOIUrl":"https://doi.org/10.1109/QoMEX51781.2021.9465450","url":null,"abstract":"Humans are fascinated by video games for many years, which intrinsically immerse players in their virtual environments. Apart from the challenges offered by steadily new game concepts, aesthetically pleasing environments and characters, stories, and sound effects are highly important for the player experience. Recently, the new concept of cloud gaming, which offers users to play games executed on a cloud server remotely, is becoming increasingly popular. While cloud gaming offers many advantages, additional audio and video streaming poses many technical challenges. To ensure a satisfying Quality of Experience (QoE) of their customers, all stakeholders are interested in finding out which aspects of a gaming experience are of high importance and how resources can be optimally allocated. However, gaming QoE is a multidimensional construct including hedonic and pragmatic aspects and could be strongly influenced by interaction quality, video quality, and audio quality. While the impact of network and video encoding parameters of cloud gaming services was investigated in much detail in recent years, not many studies about the effect of audio quality on gaming experiences are available. Thus, in this paper, the impact of audio quality on gaming experience under different bitrate and packet loss conditions using two popular games is investigated. Therefore, a subjective experiment adhering to the ITU-T Rec. P.809 was conducted. The results show a significant impact of packet loss on audio quality and the overall gaming QoE. However, no significant effect of the bitrate, which was reduced to a minimum of 32 kbps, was revealed. Additionally, the influence of audio quality on gaming QoE was stronger for a game, which contained mainly diegetic effect sounds compared to a game containing few diegetic sounds and affect sound as background music.","PeriodicalId":160378,"journal":{"name":"2021 13th International Conference on Quality of Multimedia Experience (QoMEX)","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129204931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Cognitive Load Estimation Based on Pupillometry in Virtual Reality with Uncontrolled Scene Lighting 基于瞳孔测量的虚拟现实无控制场景照明认知负荷估计

2021 13th International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2021-06-14 DOI: 10.1109/QoMEX51781.2021.9465417

Marie-Lena Eckert, Emanuël Habets, Olli S. Rummukainen

引用次数: 4