An active service framework and its application to real-time multimedia transcoding
Proceedings of the ACM SIGCOMM '98 conference on Applications, technologies, architectures, and protocols for computer communication
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
WCDMA for UMTS: Radio Access for Third Generation Mobile Communications
MPEG-21: Goals and Achievements
IEEE MultiMedia
Content-aware error-resilient transcoding using prioritized intra-refresh for video streaming
Journal of Visual Communication and Image Representation
Error resilience video transcoding for wireless communications
IEEE Wireless Communications
Video transcoding: an overview of various techniques and research issues
IEEE Transactions on Multimedia
Error-resilient video coding in the ISO MPEG-4 standard
IEEE Communications Magazine
Video transcoding proxy for 3Gwireless mobile Internet access
IEEE Communications Magazine
Analysis of video transmission over lossy channels
IEEE Journal on Selected Areas in Communications
Error-resilient transcoding for video over wireless channels
IEEE Journal on Selected Areas in Communications
The JOURNEY active network model
IEEE Journal on Selected Areas in Communications
Adaptive intra block update for robust transmission of H.263
IEEE Transactions on Circuits and Systems for Video Technology
Error-resilient video transcoding for robust internetwork communications using GPRS
IEEE Transactions on Circuits and Systems for Video Technology
Compressed-domain techniques for error-resilient video transcoding using RPS
IEEE Transactions on Image Processing
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Transcoding is an effective method to provide video adaptation for heterogeneous internetwork video access and communication environments, which require the tailoring (i.e., repurposing) of coded video properties to channel conditions, terminal capabilities, and user preferences. This paper presents a video transcoding system that is capable of applying a suite of error resilience tools on the input compressed video streams while controlling the output rates to provide robust communications over error-prone and bandwidth-limited 3G wireless networks. The transcoder is also designed to employ a new adaptive intra-refresh algorithm, which is responsive to the detected scene activity inherently embedded into the video content and the reported time-varying channel error conditions of the wireless network. Comprehensive computer simulations demonstrate significant improvements in the received video quality performances using the new transcoding architecture without an extra computational cost.