JPEG 2000: Image Compression Fundamentals, Standards and Practice
JPEG 2000: Image Compression Fundamentals, Standards and Practice
PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part I
Isolated regions in video coding
IEEE Transactions on Multimedia
Bitstream syntax description-based adaptation in streaming and constrained environments
IEEE Transactions on Multimedia
Overview of fine granularity scalability in MPEG-4 video standard
IEEE Transactions on Circuits and Systems for Video Technology
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
An optimized MPEG-21 BSDL framework for the adaptation of scalable bitstreams
Journal of Visual Communication and Image Representation
H.264 standard for left ventricle video compression and telediagnosis
Telehealth '07 The Third IASTED International Conference on Telehealth
Supporting region-of-interest cropping through constrained compression
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
SNR scalability in H.264/AVC using data partitioning
PCM'06 Proceedings of the 7th Pacific Rim conference on Advances in Multimedia Information Processing
A URI-based approach for addressing fragments of media resources on the Web
Multimedia Tools and Applications
Efficient region-of-interest scalable video coding with adaptive bit-rate control
Advances in Multimedia
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In many application scenarios, the use of Regions of Interest (ROIs) within video sequences is a useful concept. It is shown in this paper how Flexible Macroblock Ordering (FMO), defined in H.264/AVC as an error resilience tool, can be used for the coding arbitrary-shaped ROIs. In order to exploit the coding of ROIs in an H.264/AVC bitstream, a description-driven content adaptation framework is introduced that is able to extract the ROIs of a given bitstream. The results of a series of tests indicate that the ROI extraction process significantly reduces the bit rate of the bitstreams and increases the decoding speed. In case of a fixed camera and a static background, the impact of this reduction on the visual quality of the video sequence is negligible. Regarding the adaptation framework itself, it is shown that in all cases, the framework operates in real time and that it is suited for streaming scenarios by design.