Multimedia Cloud Computing

Wenwu Zhu, Senior Researcher @ Internet Media Group @ Microsoft Research Asia

Chong Luo, Member of the IEEE

Jianfeng Wang, Master Student in MOE-Microsoft Key Laboratory

Shipeng Li, Researcher @ Microsoft Research Asia

IEEE SINGAL PROCESSING MAGAZINE, MAY 2011

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OverviewIntroductionRelated WorksMultimedia-aware CloudCloud-aware MultimediaSummaryReference

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OverviewIntroductionRelated WorksMultimedia-aware CloudCloud-aware MultimediaSummaryReference

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IntroductionWhat is and why needs cloud

computing?Challenges of multimedia on

cloud◦Multimedia and service

heterogeneity◦QoS heterogeneity◦Network heterogeneity◦Device heterogeneity

Multimedia-aware cloud (media cloud) v.s cloud-aware multimedia (cloud media)

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Multimedia on Cloud

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Media Cloud v.s Cloud Media

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OverviewIntroductionRelated WorksMultimedia-aware CloudCloud-aware MultimediaSummaryReference

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OverviewIntroductionRelated WorksMultimedia-aware CloudCloud-aware MultimediaSummaryReference

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Multimedia-aware CloudMedia-cloud-computing

architecture◦Media edge cloud (MEC) architecture

Distributed parallel multimedia processing

Case study◦Photosynth[1]

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MEC ArchitectureLike CDN[2] edge servers

architecture

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MEC Architecture

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Distributed parallel multimedia processing

DHT

LoadBalancer

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Case Study - Photosynth

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Case Study - PhotosynthMajor computation task

◦Image Conversion◦Feature extration◦Image matching◦Reconstruction

User-level parallel synthing in the MEC

Task-level parallel synthing in the MEC

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User-level Parallel Synthing

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Task-level Parallel Synthing

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Simulation Result

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OverviewIntroductionRelated WorksMultimedia-aware CloudCloud-aware MultimediaSummaryReference

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Cloud-aware Multimedia

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Cloud-aware MultimediaStorage and sharingAuthoring and mashupAdaptation and deliveryMedia rendering

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Storage and sharingAdvantage

◦High reliability◦High data rate

Issues◦High bandwidth demand of load

balancing algorithms for streaming

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Authoring and MashupOffline tools

◦Adobe◦Windows Movie Maker

Online service◦Jaycut

http://www.jaycut.com

XML-based file format

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Authoring and Mashup

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Adaptation and DeliveryA large amount of computingRequest service simultaneouslyExample – Cloudcoder

◦Offload much of the processing to the cloud

◦Transcoder instances scales up automatically

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Adaptation and Delivery

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Media RenderingA large amount of computing

◦Fully render◦Partially render

Multimedia retrieval◦Content-based image retrieval (CBIR)

Feature extraction Similarity measurement

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Media Rendering

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OverviewIntroductionRelated WorksMultimedia-aware CloudCloud-aware MultimediaSummaryReference

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SummaryMedia cloud

◦Propose an MEC-computing architecture to achieve high QoS support for various services.

Cloud media◦Propose how multimedia service can

optimally utilize cloud-computing resources.

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OverviewIntroductionRelated WorksMultimedia-aware CloudCloud-aware MultimediaSummaryReference

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Reference[1] Photosynth

◦http://photosynth.net/[2] CDN

◦http://miin1130.pixnet.net/blog/post/26763766-cdn(content-delivery-network)%E6%87%89%E7%94%A8%E7%B0%A1%E5%96%AE%E8%AA%AA%E6%98%8E