Rate adaptation transcoding for precoded video streams
Proceedings of the tenth ACM international conference on Multimedia
Semantic transcoding for live video server
Proceedings of the tenth ACM international conference on Multimedia
IPDPS '02 Proceedings of the 16th International Parallel and Distributed Processing Symposium
A systematic rate controller for MPEG-4 FGS video streaming
Multimedia Systems
IEEE Transactions on Parallel and Distributed Systems
An efficient complexity-scalable video transcoder with mode refinement
Image Communication
MPEG-4 to H.264 transcoding with frame rate reduction
Multimedia Tools and Applications
Multimedia Tools and Applications
Fast perceptual region tracking with coding-depth sensitive access for stream transcoding
Journal of Visual Communication and Image Representation
A fast MPEG-2 to H.264 downscaling transcoder
ISCGAV'08 Proceedings of the 8th conference on Signal processing, computational geometry and artificial vision
A Frame-Activity-Based Dynamic Frame-Skipping Transcoder
Wireless Personal Communications: An International Journal
Compressed-domain techniques for error-resilient video transcoding using RPS
IEEE Transactions on Image Processing
Content-aware error-resilient transcoding using prioritized intra-refresh for video streaming
Journal of Visual Communication and Image Representation
Foveation embedded DCT domain video transcoding
Journal of Visual Communication and Image Representation
Motion information exploitation in H.264 frame skipping transcoding
ACIVS'07 Proceedings of the 9th international conference on Advanced concepts for intelligent vision systems
Journal of Visual Communication and Image Representation
Parabolic Motion-Vector Re-estimation Algorithm for Compressed Video Downscaling
Journal of Signal Processing Systems
A novel approach to FRUC using discriminant saliency and frame segmentation
IEEE Transactions on Image Processing
A novel approach for improving the quality of service for wireless video transcoding
Journal of Mobile Multimedia
Complexity reduction of multi-frame motion estimation in h.264
MMM'07 Proceedings of the 13th international conference on Multimedia Modeling - Volume Part I
Conversion scheme for DCT-Domain transcoding of MPEG-2 to H.264/AVC
ICIAP'05 Proceedings of the 13th international conference on Image Analysis and Processing
DCT block conversion for H.264/AVC video transcoding
Euro-Par'05 Proceedings of the 11th international Euro-Par conference on Parallel Processing
Motion estimation in low-delay hierarchical p-frame coding using motion vector composition
Journal of Visual Communication and Image Representation
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In transcoding, simply reusing the motion vectors extracted from an incoming video bit stream may not result in the best quality. In this paper, we show that the incoming motion vectors become nonoptimal due to the reconstruction errors. To achieve the best video quality possible, a new motion estimation should be performed in the transcoder. We propose a fast-search adaptive motion vector refinement scheme that is capable of providing video quality comparable to that can be achieved by performing a new full-scale motion estimation but with much less computation. We discuss the case when some incoming frames are dropped for frame-rate conversions, and propose motion vector composition method to compose a motion vector from the incoming motion vectors. The composed motion vector can also be refined using the proposed motion vector refinement scheme to achieve better results