A Flexible Video Transmission System Based on JPEG 2000 Conditional Replenishment with Multiple References

Devaux, F.-O.; Meessen, Jerome; Parisot, Christophe; Delaigle, Jean-François; Macq, Benoı̂t; Vleeschouwer, Christophe De

doi:10.1109/icassp.2007.366035

Cited by 18 publications

(22 citation statements)

References 7 publications

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“…This was done so that frames could be sent either forward or backward in time per client's request, and the client could simply decode and play back the video in the transmission order with no excess buffering. Note that this was a more limited form of media interactivity than video browsing, but unlike JPEG2000-based approaches 11,12 for video browsing, where each frame was encoded independently, the inter-frame redundancy was explicitly exploited here during actual media encoding, hence the resulting encoding rate is expected to be much lower.…”

Section: Reversible Video Playbackmentioning

confidence: 99%

“…Though at encoding time each frame is encoding independently, inter-frame redundancy can nevertheless be exploited. Devaux et al 11 proposed to use conditional replenishment (CR), where the coefficients of a code-block of a desired frame were sent or replenished only if the corresponding code-block of the previous frame already at the decoder did not provide a good enough approximation. Along similar line, assuming a motion model Taubman et al 12 performed motion compensation (MC) at the server, so that the transmitted motion information could be used in combination of code-blocks of previous frames to approximately reconstruct code-blocks of requested frames.…”

Section: Video Browsingmentioning

confidence: 99%

“…Exploiting scalable nature of JPEG2000, proposals 11,12 have also been made to use JPEG2000 for video browsing, where the streaming video can be randomly accessed with complete flexibility at the frame level: random access any frame in sequence, forward/backward playback in time, playback at K× speed by decoding only every K frames, etc. Though at encoding time each frame is encoding independently, inter-frame redundancy can nevertheless be exploited.…”

Section: Video Browsingmentioning

confidence: 99%

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On media data structures for interactive streaming in immersive applications

et al. 2010

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Interactive media streaming is the communication paradigm where an observer, viewing transmitted subsets of media in real-time, periodically requests new desired subsets from the streaming sender, upon which the sender sends the appropriate media data corresponding to the received requests. This is in contrast to non-interactive media streaming like TV broadcast, where the entire media set is compressed and delivered to the observer before the observer interacts with the data (such as switching TV channels). Examples of interactive streaming abound in different media modalities: interactive browsing of JPEG2000 images, interactive light field or multiview video streaming, etc. Interactive media streaming has the obvious advantage of bandwidth efficiency: only the media subsets corresponding to observer's requests are transmitted. This is important when an observer only views a small subset out of a very large media data set during a typical streaming session. The technical challenge is how to structure media data such that good compression efficiency can be achieved using compression tools like differential coding, while providing sufficient flexibility for the observer to freely navigate the media data set in his/her desired order. In this introductory paper to the special session on "immersive interaction for networked multiview video systems", we overview different proposals in the literature that simultaneously achieve the conflicting objectives of compression efficiency and decoding flexibility.

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Section: Reversible Video Playbackmentioning

confidence: 99%

Section: Video Browsingmentioning

confidence: 99%

Section: Video Browsingmentioning

confidence: 99%

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On media data structures for interactive streaming in immersive applications

et al. 2010

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“…Note that these systems transmit the entire picture while delivering the RoI with higher quality. Among the class of such systems, some employ JPEG2000 with RoI support and conditional replenishment for exploiting correlation among successive frames [20]. Parts of the image that are not replenished can be copied from the previous frame or a background store.…”

Section: Videomentioning

confidence: 99%

Video Streaming with Interactive Pan/Tilt/Zoom

Mavlankar

Girod

2010

Signals and Communication Technology

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High-spatial-resolution videos offer the possibility of viewing an arbitrary region-of-interest (RoI) interactively. The user can pan/tilt/zoom while watching the video. This chapter presents spatial-random-access-enabled video compression that encodes the content such that arbitrary RoIs corresponding to different zoom factors can be extracted from the compressed bit-stream. The chapter also covers RoI trajectory prediction, which allows pre-fetching relevant content in a streaming scenario. The more accurate the prediction the lower is the percentage of missing pixels. RoI prediction techniques can perform better by adapting according to the video content in addition to simply extrapolating previous moves of the input device. Finally, the chapter presents a streaming system that employs application-layer peer-to-peer (P2P) multicast while still allowing the users to freely choose individual RoIs. The P2P overlay adapts on-the-fly for exploiting the commonalities in the peers' RoIs. This enables peers to relay data to each other in real-time, thus drastically reducing the bandwidth required from dedicated servers.

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“…Our work was rewarded with one of the prizes. 4 Smooth and Scalable Wireless JPEG2000 images and video streaming with Dynamic Bandwidth Estimation…”

Section: Collaborationsmentioning

confidence: 99%