2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW)最新文献_第10页

MMT-based QoS adaptive video service 基于mmt的QoS自适应视频业务

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169741

Yongwoo Cho, Yoonseok Heo, D. Suh

引用次数: 0

Single depth image super resolution via a dual sparsity model 单深度图像超分辨率通过双稀疏模型

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169851

Yulun Zhang, Yongbing Zhang, Qionghai Dai

引用次数: 5

Safety-enabled restful messaging in Ambient-Assisted Living 在环境辅助生活中启用安全的宁静消息

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169804

M. A. Hossain, Jorge Parra, Atif Alamri

引用次数: 4

CDVS feature selection on embedded systems 嵌入式系统cdv特征选择

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169789

A. Garbo, C. Loiacono, S. Quer, M. Balestri, Gianluca Francini

{"title":"CDVS feature selection on embedded systems","authors":"A. Garbo, C. Loiacono, S. Quer, M. Balestri, Gianluca Francini","doi":"10.1109/ICMEW.2015.7169789","DOIUrl":"https://doi.org/10.1109/ICMEW.2015.7169789","url":null,"abstract":"Mobile image retrieval and pairwise matching applications pose a unique set of challenges. As communicating large amount of data could take tens of seconds over a slow wireless link, MPEG defined the CDVS standard to transfer over the network only the data essential to the matching, and not the entire image. However, the extraction of salient image features is a very time consuming process, and it may still require times in the order of seconds when running on CPU of modern mobile devices. To reduce feature extraction computation times, we re-design the MPEG-CDVS feature selection algorithm for highly parallel embedded GPUs. We consider two different approaches compliant to the standard. In the first one, feature selection is performed before the orientation assignment stage. In the second one, it is performed after. We present a complete experimental analysis on a large test set. Our experiments show that our GPU-based approaches are remarkably faster than the CPU-based reference implementation of the standard, while maintaining a comparable precision in terms of true and false positive rates. To sum up, our solutions have been proved to be effective for real-time applications running on modern embedded systems.","PeriodicalId":388471,"journal":{"name":"2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127518346","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

Low cost embedded system for increasing retail environment intelligence 提高零售环境智能化的低成本嵌入式系统

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169771

R. Pierdicca, Daniele Liciotti, Marco Contigiani, E. Frontoni, A. Mancini, P. Zingaretti

{"title":"Low cost embedded system for increasing retail environment intelligence","authors":"R. Pierdicca, Daniele Liciotti, Marco Contigiani, E. Frontoni, A. Mancini, P. Zingaretti","doi":"10.1109/ICMEW.2015.7169771","DOIUrl":"https://doi.org/10.1109/ICMEW.2015.7169771","url":null,"abstract":"The success of pervasive smart environments lies in the capacity to involve visitors to interact with them. It is essential for retail stores. In this paper we describe the setting-up of a low cost system for the indoor localization and customer interaction, developed with a complex infrastructure of wireless embedded sensors. The creation of a responsive store allows customers to connect the real world to their smart devices and will overcome the lack of ubiquity in public spaces; furthermore, from in-venue analytics and proximity sensor it is possible to customize the user experience. First of all we describe the whole sensor network. We go in deep into the active beacon technology adopted for this study. Then, thanks to the analytics, we present a data evaluation with the aim of determining the best sensor arrangement, according to several user tests. Beside the strong enhancement of human interaction, the results of our essay demonstrate how embedded localization systems could be a useful source for data collection beside the strong enhancement of human interaction. This paper is focused to help retailers and insiders for many purposes such as products development or improvement, segmentation strategies and human behaviour analyses into such stores where the embedded computing augment the environment.","PeriodicalId":388471,"journal":{"name":"2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126335061","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: 36

Descriptor-based adaptive tracking-by-detection for visual sensor networks 基于描述符的自适应检测跟踪视觉传感器网络

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169807

Berner Panti, Pedro Monteiro, F. Pereira, J. Ascenso

{"title":"Descriptor-based adaptive tracking-by-detection for visual sensor networks","authors":"Berner Panti, Pedro Monteiro, F. Pereira, J. Ascenso","doi":"10.1109/ICMEW.2015.7169807","DOIUrl":"https://doi.org/10.1109/ICMEW.2015.7169807","url":null,"abstract":"Local descriptors represent a powerful tool, which is exploited in several applications such as visual search, object recognition and visual tracking. Real-valued visual descriptors such as SIFT and SURF achieve state-of-the-art accuracy performance for a large set of visual analysis tasks. However, such algorithms are demanding in terms of computational capabilities and bandwidth, being unsuitable for scenarios where resources are constrained. In this context, binary descriptors provide an efficient alternative to real-valued descriptors, due to their low computational complexity, limited memory footprint and fast matching algorithms. In this paper, binary descriptors are used to perform visual tracking of an object along time. The proposed visual tracker performs descriptor matching between consecutive frames, applies filtering techniques to remove undesirable outliers and employs a suitable model to characterize the object appearance. In addition, techniques to code and transmit these description streams are employed, thus reducing the amount of data necessary to transmit to perform accurate object tracking. The efficiency of the proposed visual tracker is evaluated in terms of rate-accuracy, i.e. using the bitrate associated to the compressed binary descriptors and a quantitative metric to assess the accuracy of the visual tracker.","PeriodicalId":388471,"journal":{"name":"2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134286635","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: 6

Light field depth estimation exploiting linear structure in EPI 利用线性结构的EPI光场深度估计

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169836

Huijin Lv, Kaiyu Gu, Yongbing Zhang, Qionghai Dai

{"title":"Light field depth estimation exploiting linear structure in EPI","authors":"Huijin Lv, Kaiyu Gu, Yongbing Zhang, Qionghai Dai","doi":"10.1109/ICMEW.2015.7169836","DOIUrl":"https://doi.org/10.1109/ICMEW.2015.7169836","url":null,"abstract":"Light field (LF), a promising representation to describe the visual appearance of a scene, implicitly captures 3D scene geometry. Inspired by this, we exploit the special linear structure of epipolar plane image (EPI) and propose a novel framework for depth estimation for 4D LF. Our approach estimates disparities through locating the optimal slope of each line segmentation on EPIs, which are projected by corresponding scene points. For each pixel to be processed, we employ intensity pixel value, gradient pixel value, spatial consistency as well as reliability measure to select the best slope from a predefined set. The depth value is calculated according to the geometric relation between disparity and slope of line segmentation in EPI. Then a novel method to detect and handle occlusion boundaries is introduced, further improving the quality of depth maps. We test our algorithm on not only a number of synthetic LF examples but real-world LF datasets, and the experimental results show that our technique outperforms both the state-of-the art and the recent light field stereo matching methods, especially near occlusion boundaries.","PeriodicalId":388471,"journal":{"name":"2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114142366","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: 12

Unsupervised fusion for forgery localization exploiting background information 利用背景信息伪造定位的无监督融合

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169770

P. Ferrara, M. Fontani, T. Bianchi, A. D. Rosa, A. Piva, M. Barni

引用次数: 16

Passivity-based model updating for Model-mediated Teleoperation 基于被动的模型中介遥操作模型更新

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169831

Xiao Xu, Clemens Schuwerk, E. Steinbach

{"title":"Passivity-based model updating for Model-mediated Teleoperation","authors":"Xiao Xu, Clemens Schuwerk, E. Steinbach","doi":"10.1109/ICMEW.2015.7169831","DOIUrl":"https://doi.org/10.1109/ICMEW.2015.7169831","url":null,"abstract":"We study the stability of three-dimensional (3D) haptic interaction in Model-mediated Teleoperation (MMT) systems. In MMT, a simple object model is employed on the master side to approximate the remote environment. The haptic feedback is rendered locally on the master side based on model parameters which are estimated on the slave side. The main advantage of the MMT approach is that the haptic control loop is running locally which leads to stable behavior even in the presence of communication delays. The local model must be updated when the environment changes, or novel, previously unseen parts are encountered. During the model update, a sudden change of the model parameters leads to model-jump effects and results in unpredictable motion and force. A smooth and stable model update scheme is required to mitigate this effect. To guarantee system stability, we derive a passivity condition for a 3D spring-damper model during the model update phase. Energy generated due to the changes of the model parameters is dissipated through an adaptive damper element. The sampling effect of the haptic device is also taken into account. The performance of the proposed passivity-based model update (PMU) scheme is evaluated through simulations and subjective experiments. Evaluation results show that by using the PMU scheme, system stability during the model update phase is guaranteed. Moreover, subjects feel more comfortable with the model update if the PMU scheme is enabled.","PeriodicalId":388471,"journal":{"name":"2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114174390","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: 12

Diary generation from personal information models to support contextual remembering and reminiscence 日记生成从个人信息模型，以支持上下文记忆和回忆

2015 IEEE International Conference on Multimedia & Expo Workshops (ICMEW) Pub Date : 2015-06-01 DOI: 10.1109/ICMEW.2015.7169753

Christian Jilek, H. Maus, Sven Schwarz, A. Dengel

引用次数: 16