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Strategic Thinking for Video on the Web. Franck Denoual. Motivations. Promote Video Usage Enrich User Experience User decides what, when, where Offer easy Second Life for users video Customizing, editing Sharing, storing Preserve Quality Flawless video Accessibility
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Strategic Thinking for Video on the Web Franck Denoual
Motivations • Promote Video Usage • Enrich User Experience • User decides what, when, where • Offer easy Second Life for users video • Customizing, editing • Sharing, storing • Preserve Quality • Flawless video Accessibility • Give user control on quality when publishing
User Centric Model • Video anytime, anywhere… • What = Video • No control on generated format • Possibility for transcoding before publishing • Any format for visualization • When = stored/live content • Different interactions • On demand/broadcast • Where = Device • Take into account device characteristics… • Display resources • Connectivity • Processing power • … for user satisfaction
Video Life-Cycle Acquisition Compression Producer Packaging Retrieval Transmission Annotating Empower the user from P to C! Adapting IP Rights Rendering Security Interacting In W3C scope Out of scope Consumer
P user wants more control! • P user wants seamless QoS • Large & easy deployment • Expected/selectable video quality level • Content Adaptation Issues • Format heterogeneity • Video streams/Packaging formats • Device heterogeneity • Supported codecs, Processing power, Display capabilities • Who does the job? • Server, Client device, Proxies?, Content creator must help
Content Adaptation solutions? High quality • Scalable format • for quality, resolution, bit-rate adaptations • appropriate queries • Retrofit JPEG-2000+JPIP experience • Server side or proxy • Multiple streams/On the fly transcoding • Server decision based on client description • CC/PP, HTTP content negotiation • Client side • Graphical zoom, clipping, … Low quality
C user needs more interactivity! • Each C user does not have the same way to view the same video • Spatial interactivity • Resizing • Dynamic adaptation of video size • Fine zoom capabilities • Quality management • Increase/Decrease quality • Regions of interest • Display a selected region of video in full window /useMap attribute ?
C user needs more interactivity! • Temporal interactivity • Skipping at specific time • Cannot be planned in the presentation • Provide multiple entry points in the video • User defined / Automatically generated would bring added value • Exploit Metadata • Enhanced menus via temporal links • Fragments or queries ? (see Annotex presentation) • Bring added-value: • Detailed descriptions of the content/Contextual search
Conclusion • Video on the Web is already a success, but… • Interaction could be improved by • Enriching controls in <video> • Exploiting power of Metadata • Take time dimension into account • Exploiting scalable video formats • Quality could be improved • Preliminary negotiation • Content adaptation