system retriev video sequenc creat track human smart environ use spatial queri present sketch made point devic floor layout environ use form queri correspond locomot pattern the sketch analyz identifi type queri direct search algorithm base minimum distanc between point appli find best match sketch the result rank accord similar present user the system develop two stage initi version system implement evalu conduct user studi modif were made where appropri accord result feedback make system more accur usabl present detail initi system user studi result modif thus made the overal accuraci retriev initi system approxim 93 when test collect data from reallif experi this improv approxim 97 after modif the user interact strategi search algorithm usabl ani environ autom retriev locomot pattern the subject who evalu system found easi learn use their comment includ sever prospect applic user interact strategi provid valuabl insight futur direct

Gamhewage C. de Silva

Toshihiko Yamasaki

Kiyoharu Aizawa

Sketch-Based Spatial Queries for the Retrieval of Human Locomotion Patterns in Smart Environments

packetlevel forward error control fec video stream over wireless network has receiv compar limit investig becaus delay introduc need assembl group packet howev packetlevel interleav when combin fec present remedi timecorrel error burst though can further increas delay issu address this paper propos adapt overal degre interleav packetlevel fec accord display deadlin packet transmit buffer occup estim video input wireless channel all which address issu delay guard against estim error scheme appli conserv adapt polici which account pictur type import ensur display deadlin met thus avoid defect interleav the paper addit introduc greedi algorithm effect group packetlevel fec protect accord packet prioriti prioriti encod add extra protect dure deep fade feedback requir interleav scheme suitabl all form video broadcast bluetooth piconet demonstr packetlevel fec interleav scheme which provid higher qualiti deliv video compar industrystandard prompeg cop 3r2 interleav scheme

Rouzbeh Razavi

Martin Fleury

Mohammed Ghanbari

Adaptive Packet-Level Interleaved FEC for Wireless  Priority-Encoded Video Streaming

visual sensor network have emerg import class sensorbas distribut intellig system uniqu perform complex qualiti servic challeng consist larg number lowpow camera node visual sensor network support great number novel visionbas applic the camera node provid inform from monitor site perform distribut collabor process collect data using multipl camera network provid differ view scene which enhanc reliabl captur event howev larg amount imag data produc camera combin network resourc constraint requir explor new mean data process communic sensor manag meet challeng visual sensor network requir interdisciplinari approach util vision process communic network embed process paper provid overview current stateoftheart field visual sensor network explor sever relev research direct our goal provid better understand current research problem differ research field visual sensor network show how differ research field should interact solv mani challeng visual sensor network

Stanislava Soro

Wendi Heinzelman

A Survey of Visual Sensor Networks

the increas varieti network end system especi wireless devic pose new challeng communic support particular multicastbas collabor applic tradit multicast sender transmit video same rate resolut all receiv independ network characterist end system equip user prefer about video qualiti signific such approach result resourc be wast may also result some receiv have qualiti expect unsatisfi this problem can address near network edg appli dynam innetwork adapt transcod video stream meet avail connect bandwidth machin characterist client prefer paper extrapol from earlier work shorfuzzaman 2006 which implement assess mpeg1 transcod system intel ixp1200 network processor consid feasibl innetwork transcod other video format network processor architectur the use onthefli video adapt near edg network offer promis simpler support wide rang end devic differ display forth characterist can use differ type environ

Mohammad Shorfuzzaman

Rasit Eskicioglu

Peter Graham

In-Network Adaptation of Video Streams Using Network Processors

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Advances in Multimedia publishes research on the technologies associated with multimedia systems, including computer-media integration for digital information processing, storage, transmission, and representation.

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Advances in Multimedia - Table of contents 2009

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Advances in Multimedia publishes research on the technologies associated with multimedia systems, including computer-media integration for digital information processing, storage, transmission, and representation.

Advances in Multimedia