Proceedings of the 12th ACM Multimedia Systems Conference最新文献_第5页

Enabling Wide Adoption of Hyperspectral Imaging 实现高光谱成像的广泛应用

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-06-24 DOI: 10.1145/3458305.3478465

N. Sharma

引用次数: 0

Improving Server and Client-Side Algorithms for Adaptive Streaming of Non-Immersive and Immersive Media 改进非沉浸式和沉浸式媒体自适应流的服务器和客户端算法

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-06-24 DOI: 10.1145/3458305.3478461

Mehmet N. Akcay

引用次数: 0

Performance of Low-Latency HTTP-based Streaming Players 基于http的低延迟流媒体播放器的性能

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-06-24 DOI: 10.1145/3458305.3478442

Bo Zhang, Thiago Teixeira, Y. Reznik

引用次数: 6

Adaptive Streaming Playback Statistics Dataset 自适应流播放统计数据集

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-06-24 DOI: 10.1145/3458305.3478444

Thiago Teixeira, Bo Zhang, Y. Reznik

引用次数: 3

QPlane: An Open-Source Reinforcement Learning Toolkit for Autonomous Fixed Wing Aircraft Simulation QPlane:用于自主固定翼飞机仿真的开源强化学习工具包

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-06-24 DOI: 10.1145/3458305.3478446

David J. Richter, R. A. Calix

引用次数: 5

Policy-driven Dynamic HTTP Adaptive Streaming Player Environment 策略驱动的动态HTTP自适应流媒体播放器环境

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-06-24 DOI: 10.1145/3458305.3478466

Minh Nguyen

{"title":"Policy-driven Dynamic HTTP Adaptive Streaming Player Environment","authors":"Minh Nguyen","doi":"10.1145/3458305.3478466","DOIUrl":"https://doi.org/10.1145/3458305.3478466","url":null,"abstract":"Video streaming services account for the majority of today's traffic on the Internet. Although the data transmission rate has been increasing significantly, the growing number and variety of media and higher quality expectations of users have led networked media applications to fully or even over-utilize the available throughput. HTTP Adaptive Streaming (HAS) has become a predominant technique for multimedia delivery over the Internet today. However, there are critical challenges for multimedia systems, especially the tradeoff between the increasing content (complexity) and various requirements regarding time (latency) and quality (QoE). This thesis will cover the main aspects within the end user's environment, including video consumption and interactivity, collectively referred to as player environment, which is probably the most crucial component in today's multimedia applications and services. We will investigate the methods that can enable the specification of various policies reflecting the user's needs in given use cases. Besides, we will also work on schemes that allow efficient support for server-assisted, and network-assisted HAS systems. Finally, those approaches will be considered to combine into policies that fit the requirements of all use cases (e.g., live streaming, video on demand, etc.).","PeriodicalId":138399,"journal":{"name":"Proceedings of the 12th ACM Multimedia Systems Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125050750","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: 0

Full UHD 360-Degree Video Dataset and Modeling of Rate-Distortion Characteristics and Head Movement Navigation 全UHD 360度视频数据集和率失真特征建模和头部运动导航

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-06-24 DOI: 10.1145/3458305.3478447

Jacob Chakareski, Ridvan Aksu, Viswanathan Swaminathan, M. Zink

引用次数: 8

A distributed, decoupled system for losslessly streaming dynamic light probes to thin clients 一个分布式的、解耦的系统，用于将动态光探针无损地流式传输到瘦客户机

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2021-03-10 DOI: 10.1145/3458305.3463379

Michael Stengel, Z. Majercik, Ben Boudaoud, M. McGuire

{"title":"A distributed, decoupled system for losslessly streaming dynamic light probes to thin clients","authors":"Michael Stengel, Z. Majercik, Ben Boudaoud, M. McGuire","doi":"10.1145/3458305.3463379","DOIUrl":"https://doi.org/10.1145/3458305.3463379","url":null,"abstract":"We present a networked, high-performance graphics system that combines dynamic, high-quality, ray traced global illumination computed on a server with direct illumination and primary visibility computed on a client. This approach provides many of the image quality benefits of real-time ray tracing on low-power and legacy hardware, while maintaining a low latency response and mobile form factor. As opposed to streaming full frames from rendering servers to end clients, our system distributes the graphics pipeline over a network by computing diffuse global illumination on a remote machine. Diffuse global illumination is computed using a recent irradiance volume representation combined with a new lossless, HEVC-based, hardware-accelerated encoding, and a perceptually-motivated update scheme. Our experimental implementation streams thousands of irradiance probes per second and requires less than 50 Mbps of throughput, reducing the consumed bandwidth by 99.4% when streaming at 60 Hz compared to traditional lossless texture compression. The bandwidth reduction achieved with our approach allows higher quality and lower latency graphics than state-of-the-art remote rendering via video streaming. In addition, our split-rendering solution decouples remote computation from local rendering and so does not limit local display update rate or display resolution.","PeriodicalId":138399,"journal":{"name":"Proceedings of the 12th ACM Multimedia Systems Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134359688","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: 8

User-assisted video reflection removal 用户辅助视频反射去除

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2020-04-21 DOI: 10.1145/3458305.3459597

Amgad Ahmed, Suhong Kim, Mohamed A. Elgharib, M. Hefeeda

{"title":"User-assisted video reflection removal","authors":"Amgad Ahmed, Suhong Kim, Mohamed A. Elgharib, M. Hefeeda","doi":"10.1145/3458305.3459597","DOIUrl":"https://doi.org/10.1145/3458305.3459597","url":null,"abstract":"Reflections in videos are obstructions that often occur when videos are taken behind reflective surfaces like glass. These reflections reduce the quality of such videos, lead to information loss and degrade the accuracy of many computer vision algorithms. A video containing reflections is a combination of background and reflection layers. Thus, reflection removal is equivalent to decomposing the video into two layers. This, however, is a challenging and ill-posed problem as there is an infinite number of valid decompositions. To address this problem, we propose a user-assisted method for video reflection removal. We rely on both spatial and temporal information and utilize sparse user hints to help improve separation. The proposed method removes complex reflections in videos by including the user in the loop. The method is flexible and can accept various levels of user annotations, within each frame and in the number of frames being annotated. The user provides some strokes in some of the frames in the video, and our method propagates these strokes within the frame using a random walk computation as well as across frames using a point-based motion tracking method. We implement and evaluate the proposed method through quantitative and qualitative results on real and synthetic videos. Our experiments show that the proposed method successfully removes reflection from video sequences, does not introduce visual distortions, and significantly outperforms the state-of-the-art reflection removal methods in the literature.","PeriodicalId":138399,"journal":{"name":"Proceedings of the 12th ACM Multimedia Systems Conference","volume":"214 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123235991","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

AMP: authentication of media via provenance AMP:通过来源对媒体进行认证

Proceedings of the 12th ACM Multimedia Systems Conference Pub Date : 2020-01-22 DOI: 10.1145/3458305.3459599

P. England, Henrique S. Malvar, E. Horvitz, J. W. Stokes, C. Fournet, A. Chamayou, S. Clebsch, Manuel Costa, S. Erfani, K. Kane, A. Shamis

{"title":"AMP: authentication of media via provenance","authors":"P. England, Henrique S. Malvar, E. Horvitz, J. W. Stokes, C. Fournet, A. Chamayou, S. Clebsch, Manuel Costa, S. Erfani, K. Kane, A. Shamis","doi":"10.1145/3458305.3459599","DOIUrl":"https://doi.org/10.1145/3458305.3459599","url":null,"abstract":"Advances in graphics and machine learning have led to the general availability of easy-to-use tools for modifying and synthesizing media. The proliferation of these tools threatens to cast doubt on the veracity of all media. One approach to thwarting the flow of fake media is to detect modified or synthesized media through machine learning methods. While detection may help in the short term, we believe that it is destined to fail as the quality of fake media generation continues to improve. Soon, neither humans nor algorithms will be able to reliably distinguish fake versus real content. Thus, pipelines for assuring the source and integrity of media will be required---and increasingly relied upon. We present AMP, a system that ensures the authentication of media via certifying provenance. AMP creates one or more publisher-signed manifests for a media instance uploaded by a content provider. These manifests are stored in a database allowing fast lookup from applications such as browsers. For reference, the manifests are also registered and signed by a permissioned ledger, implemented using the Confidential Consortium Framework (CCF). CCF employs both software and hardware techniques to ensure the integrity and transparency of all registered manifests. AMP, through its use of CCF, enables a consortium of media providers to govern the service while making all its operations auditable. The authenticity of the media can be communicated to the user via visual elements in the browser, indicating that an AMP manifest has been successfully located and verified.","PeriodicalId":138399,"journal":{"name":"Proceedings of the 12th ACM Multimedia Systems Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124021991","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: 14