2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX)最新文献_第2页

Impact of test condition selection in adaptive crowdsourcing studies on subjective quality 自适应众包研究中测试条件选择对主观素质的影响

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498939

Michael Seufert, Ondrej Zach, T. Hossfeld, M. Slanina, P. Tran-Gia

引用次数: 11

Training listeners for multi-channel audio quality evaluation in MUSHRA with a special focus on loop setting 培训听众的多通道音频质量评估在MUSHRA与环路设置特别关注

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498952

Nadja Schinkel-Bielefeld

{"title":"Training listeners for multi-channel audio quality evaluation in MUSHRA with a special focus on loop setting","authors":"Nadja Schinkel-Bielefeld","doi":"10.1109/QoMEX.2016.7498952","DOIUrl":"https://doi.org/10.1109/QoMEX.2016.7498952","url":null,"abstract":"Audio quality evaluation for audio material of intermediate and high quality requires expert listeners. In comparison to non-experts, these are not only more critical in their ratings, but also employ different strategies in their evaluation. In particular they concentrate on shorter sections of the audio signal and compare more to the reference than inexperienced listeners. We created a listener training for detecting coding artifacts in multi-channel audio quality evaluation. Our training is targeted at listeners without technical background. For this training, expert listeners commented on smaller sections of an audio signal they focused on in the listening test and provided a description of the artifacts they perceived. The non-expert listeners participating in the training were provided with general advice for helpful strategies in MUSHRA tests (Multi Stimulus Tests with Hidden Reference and Anchor), with the comments on specific sections of the stimulus by the experts, and with feedback after rating. Listener's performance improved in the course of the training session. Afterwards they performed the same test without the training material and a further test with different items. Performance did not decrease in these tests, showing that they could transfer what they had learned to other stimuli. After the training they also set more loops and compared more to the reference.","PeriodicalId":6645,"journal":{"name":"2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX)","volume":"104 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91016931","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: 3

No-reference image quality assessment based on statistics of Local Ternary Pattern 基于局部三元模式统计的无参考图像质量评价

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498959

P. Freitas, W. Y. L. Akamine, Mylène C. Q. Farias

引用次数: 35

Using individual data to characterize emotional user experience and its memorability: Focus on gender factor 使用个人数据表征情感用户体验及其可记忆性:关注性别因素

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498969

Romain Cohendet, Anne-Laure Gilet, Matthieu Perreira Da Silva, P. Callet

{"title":"Using individual data to characterize emotional user experience and its memorability: Focus on gender factor","authors":"Romain Cohendet, Anne-Laure Gilet, Matthieu Perreira Da Silva, P. Callet","doi":"10.1109/QoMEX.2016.7498969","DOIUrl":"https://doi.org/10.1109/QoMEX.2016.7498969","url":null,"abstract":"Delivering the same digital image to several users is not necessarily providing them the same experience. In this study, we focused on how different affective experiences impact the memorability of an image. Forty-nine participants took part in an experiment in which they saw a stream of images conveying various emotions. One day later, they had to recognize the images displayed the day before and rate them according to the positivity/ negativity of the emotional experience the images induced. In order to better appreciate the underlying idiosyncratic factors that affect the experience under test, prior to the test session we collected not only personal information but also results of psychological tests to characterize individuals according to their dominant personality in terms of masculinity-femininity (Bem Sex Role Inventory) and to measure their emotional state. The results show that the way an emotional experience is rated depends on personality rather than biological sex, suggesting that personality could be a mediator in the well-established differences in how males and females experience emotional material. From the collected data, we derive a model including individual factors relevant to characterize the memorability of the images, in particular through the emotional experience they induced.","PeriodicalId":6645,"journal":{"name":"2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX)","volume":"10 24 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79522927","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

Studying user agreement on aesthetic appeal ratings and its relation with technical knowledge 研究审美吸引力等级的用户协议及其与技术知识的关系

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498934

Pierre R. Lebreton, A. Raake, M. Barkowsky

{"title":"Studying user agreement on aesthetic appeal ratings and its relation with technical knowledge","authors":"Pierre R. Lebreton, A. Raake, M. Barkowsky","doi":"10.1109/QoMEX.2016.7498934","DOIUrl":"https://doi.org/10.1109/QoMEX.2016.7498934","url":null,"abstract":"In this paper, a crowdsourcing experiment was conducted involving different panels of participants. The aim of this study is to evaluate how the preference of one image over another one is related with the knowledge of the participant in photography. In previous work the two discriminant evaluation concepts “presence of a main subject” and “exposure” were found to distinguish group participants with different degrees of knowledge in photography. Each of these groups provided different means of aesthetic appeal ratings when asked to rate on an absolute category scale. The present paper extends previous work by studying preference ratings on a set of image pairs as a function of technical knowledge and more specifically adding a focus on the variance of rating and agreement between participants. The conducted study was composed of two different steps where the participants had to first report their preference of one image over another (paired comparison), and an evaluation of the technical background of the participant using a specific set of images. Based on preference-rating patterns groups of participants were identified. These groups were formed by clustering the participants who saw and shared the same preference rating on images in one group, and the participants with low agreement with other participants in another group. A per-group analysis showed that a high agreement between participants could be observed when participants have technical knowledge. This indicates that higher consistency between participants can be reached when expert users are being recruited, and therefore participants should be carefully selected in image aesthetic appeal evaluation to ensure stable results.","PeriodicalId":6645,"journal":{"name":"2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX)","volume":"20 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77465004","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: 3

Evaluating color difference measures in images 评估图像中的色差测量

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498922

Benhur Ortiz Jaramillo, A. Kumcu, W. Philips

{"title":"Evaluating color difference measures in images","authors":"Benhur Ortiz Jaramillo, A. Kumcu, W. Philips","doi":"10.1109/QoMEX.2016.7498922","DOIUrl":"https://doi.org/10.1109/QoMEX.2016.7498922","url":null,"abstract":"The most well known and widely used method for comparing two homogeneous color samples is the CIEDE2000 color difference formula because of its strong agreement with human perception. However, the formula is unreliable when applied over images and its spatial extensions have shown little improvement compared with the original formula. Hence, researchers have proposed many methods intending to measure color differences (CDs) in natural scene color images. However, these existing methods have not yet been rigorously compared. Therefore, in this work we review and evaluate CD measures with the purpose of answering the question to what extent do state-of-the-art CD measures agree with human perception of CDs in images? To answer the question, we have reviewed and evaluated eight state-of-the-art CD measures on a public image quality database. We found that the CIEDE2000, its spatial extension and the just noticeable CD measure perform well in computing CDs in images distorted by black level shift and color quantization algorithms (correlation higher than 0.8). However, none of the tested CD measures perform well on identifying CDs for the variety of color related distortions tested in this work, e.g., most of the tested CD measures showed a correlation lower than 0.65.","PeriodicalId":6645,"journal":{"name":"2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX)","volume":"9 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90412485","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: 16

Visual attention as a dimension of QoE: Subtitles in UHD videos 视觉注意力作为QoE的一个维度:超高清视频中的字幕

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498924

Toinon Vigier, Yoann Baveye, J. Rousseau, P. Callet

{"title":"Visual attention as a dimension of QoE: Subtitles in UHD videos","authors":"Toinon Vigier, Yoann Baveye, J. Rousseau, P. Callet","doi":"10.1109/QoMEX.2016.7498924","DOIUrl":"https://doi.org/10.1109/QoMEX.2016.7498924","url":null,"abstract":"With the ever-growing availability of multimedia content produced, broadcast and consumed worldwide, subtitling is becoming an essential service to quickly share understandable content. Simultaneously, the increased resolution of the ultra high definition (UHD) standard comes with wider screens and new viewing conditions. Services as the display of subtitles thus require adaptation to better fit the new induced viewing visual angle. This paper aims at evaluating quality of experience of subtitled movies in UHD to propose guidelines for the appearance of subtitles. From an eye-tracking experiment conducted on 68 observers and 30 video sequences, viewing behavior and visual saliency are analyzed with and without subtitles and for different subtitle styles. Various metrics based on eye-tracking data, such as the Reading Index for Dynamic Texts (RIDT), are computed to objectively measure the ease of reading and subtitle disturbance. The results mainly show that doubling the visual angle of subtitles from HD to UHD guarantees subtitle readability without compromising the enjoyment of the video content.","PeriodicalId":6645,"journal":{"name":"2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX)","volume":"32 5 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82764619","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: 9

Perceptual image quality enhancement for solar radio image 太阳射电图像的感知图像质量增强

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498933

Long Xu, Lin Ma, Zhuo Chen, Xianyou Zeng, Yihua Yan

{"title":"Perceptual image quality enhancement for solar radio image","authors":"Long Xu, Lin Ma, Zhuo Chen, Xianyou Zeng, Yihua Yan","doi":"10.1109/QoMEX.2016.7498933","DOIUrl":"https://doi.org/10.1109/QoMEX.2016.7498933","url":null,"abstract":"In solar radio observation, the visualization of data is very important since it can more intuitively and clearly deliver interest information of solar radio activities to astronomers. As to visualization, we highly expect good visual quality of images/videos in favor of the discovery of solar radio events recorded by observation data. The existing imaging system cannot guarantee good visual quality of solar radio data visualization. In this paper, an image quality enhancement algorithm is developed to improve solar radio extreme ultraviolet (EUV) images from Solar Dynamics Observatory (SDO). Firstly, the guided filter is employed to smooth image, which outputs an image with good skeleton and edges. Since the fine structures of solar radio activities are embedded in high frequency components of a solar radio image, we propose a novel structure preserving filtering to amplify the different signal of original input image subtracting smoothed one. Afterwards, fusing the amplified details and smoothed one together, the final enhanced image is generated. The experimental results prove that the image quality is significantly improved by using the proposed image quality enhancement algorithm.","PeriodicalId":6645,"journal":{"name":"2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX)","volume":"11 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2016-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91163733","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: 2

How to benchmark objective quality metrics from paired comparison data? 如何从成对比较数据中对客观质量指标进行基准测试?

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498960

Philippe Hanhart, Lukáš Krasula, P. Callet, T. Ebrahimi

引用次数: 21

Video content analysis method for audiovisual quality assessment 视听质量评价的视频内容分析方法

2016 Eighth International Conference on Quality of Multimedia Experience (QoMEX) Pub Date : 2016-06-06 DOI: 10.1109/QoMEX.2016.7498965

Baris Konuk, Emin Zerman, G. Nur, G. Akar

引用次数: 3