Transcript Multimedia Cloud Computing - National Tsing Hua University

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
Overview
Introduction
 Related Works
 Multimedia-aware Cloud
 Cloud-aware Multimedia
 Summary
 Reference
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Overview
Introduction
 Related Works
 Multimedia-aware Cloud
 Cloud-aware Multimedia
 Summary
 Reference
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Introduction
What is and why needs cloud computing?
 Challenges of multimedia on cloud
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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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Overview
Introduction
 Related Works
 Multimedia-aware Cloud
 Cloud-aware Multimedia
 Summary
 Reference
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Overview
Introduction
 Related Works
 Multimedia-aware Cloud
 Cloud-aware Multimedia
 Summary
 Reference
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Multimedia-aware Cloud
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Media-cloud-computing architecture
◦ Media edge cloud (MEC) architecture
Distributed parallel multimedia processing
 Case study
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◦ Photosynth[1]
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MEC Architecture
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Like CDN[2] edge servers architecture
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MEC Architecture
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Distributed parallel multimedia
processing
DHT
Load
Balancer
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Case Study - Photosynth
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Case Study - Photosynth
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Major computation task
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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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Overview
Introduction
 Related Works
 Multimedia-aware Cloud
 Cloud-aware Multimedia
 Summary
 Reference
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Cloud-aware Multimedia
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Cloud-aware Multimedia
Storage and sharing
 Authoring and mashup
 Adaptation and delivery
 Media rendering
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Storage and sharing
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Advantage
◦ High reliability
◦ High data rate
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Issues
◦ High bandwidth demand of load balancing
algorithms for streaming
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Authoring and Mashup
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Offline tools
◦ Adobe
◦ Windows Movie Maker
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Online service
◦ Jaycut
 http://www.jaycut.com
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XML-based file format
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Authoring and Mashup
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Adaptation and Delivery
A large amount of computing
 Request service simultaneously
 Example – Cloudcoder
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◦ 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 Rendering
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A large amount of computing
◦ Fully render
◦ Partially render
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Multimedia retrieval
◦ Content-based image retrieval (CBIR)
 Feature extraction
 Similarity measurement
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Media Rendering
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Overview
Introduction
 Related Works
 Multimedia-aware Cloud
 Cloud-aware Multimedia
 Summary
 Reference
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Summary
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Media cloud
◦ Propose an MEC-computing architecture to
achieve high QoS support for various services.
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Cloud media
◦ Propose how multimedia service can
optimally utilize cloud-computing resources.
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Overview
Introduction
 Related Works
 Multimedia-aware Cloud
 Cloud-aware Multimedia
 Summary
 Reference
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Reference
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[1] Photosynth
◦ http://photosynth.net/
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[2] CDN
◦ http://miin1130.pixnet.net/blog/post/26763766
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