[Legacy Report] Seminar: Efficient Interactive Access to Large Volume Media
#communication
#multimedia
#video
As image and video frame sizes expand, the need for efficient interactive access to multimedia content is becoming increasingly pronounced. Video sensors with Giga-pixel spatial resolution at multiple frames per second are already under development for aerial surveillance applications; consumer devices already provide content with much more resolution than most users can conveniently email or push to a photo server; moreover, we can expect higher dimensional media to proliferate in the future -- e.g., 3D scenes and free view-point video. In this talk, the speaker will present some recent and emerging technologies for compression and communication of multimedia content, which emphasise interactive accessibility. The speaker will begin by providing an overview and demonstration of the features found in the JPEG2000 and JPIP standards which facilitate highly efficient interactive browsing of large images and intra-frame coded video. The talk will then consider the benefits of intelligent client/server interaction in interactive applications, exploring opportunities which present themselves for a media server to perform on-line rate-distortion optimisation in an interactive context. The speaker will introduce some recent approaches to the interactive communication of video and 3D scenes, which rely upon such intelligent client/server interaction. Finally, the talk will focus on the interactive communication of metadata, including textual and region of interest metadata. In this last part of the talk, the speaker will demonstrate existing tools which can be used to interact with remotely hosted media content via metadata and imagery cues in a tightly coupled manner. He will also show how metadata can be used to improve the efficiency with which compressed media content is transferred by an intelligent server.
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