Efficient motion vector re-estimation for MPEG-2 to H.264/AVC transcoding with arbitrary down-sizing ratios

Authors:
Qiang Tang;Panos Nasiopoulos;Rabab Ward
Affiliations:
Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada;Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada;Electrical and Computer Engineering, University of British Columbia, Vancouver, Canada
Venue:
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Year:
2009

Citing 5
Cited 0

Reducing spatial resolution for MPEG-2 to H.264/AVC transcoding

PCM'05 Proceedings of the 6th Pacific-Rim conference on Advances in Multimedia Information Processing - Volume Part II
Video transcoding: an overview of various techniques and research issues

IEEE Transactions on Multimedia
Fast motion re-estimation for arbitrary downsizing video transcoding using H.264/AVC standard

IEEE Transactions on Consumer Electronics
Variable block-size transforms for H.264/AVC

IEEE Transactions on Circuits and Systems for Video Technology
Rate-constrained coder control and comparison of video coding standards

IEEE Transactions on Circuits and Systems for Video Technology

Quantified Score

Hi-index	0.00

Visualization

Abstract

As for down-sizing MPEG-2 to H.264/AVC transcoding, an efficient algorithm of estimating initial H.264/AVC motion vectors is proposed. By using the estimated initial motion vectors, only a small range of motion vector refinement is sufficient to find the final motion vector for each partition. Experimental results show that our proposed algorithm achieves average 0.08 dB improvement (maximum 0.24 dB) in the picture quality compared to the other state-of-art method. At the same time, the computational complexity of estimating the initial motion vectors is less than that of the other state-of-art technique (average 36% reduction).