164 lines
9.5 KiB
BibTeX
164 lines
9.5 KiB
BibTeX
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@INPROCEEDINGS{PCS2010,
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author={Carreira, J. and Pinto, L. and Rodrigues, N. and Faria, S. and Assuncao, P.},
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booktitle={Picture Coding Symposium (PCS)},
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title={{Subjective assessment of frame loss concealment methods in 3D video}},
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year={2010},
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month=dec,
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volume={},
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number={},
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pages={182-185},
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adress={Nagoya, Japan},
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abstract={This paper investigates the subjective impact resulting from different concealment methods for coping
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with lost frames in 3D video communication systems. It is assumed that a high priority channel is assigned to
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the main view and only the auxiliary view is subject to either transmission errors or packet loss, leading to
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missing frames at the decoder output. Three methods are used for frame concealment under different loss ratios.
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The results show that depth is well perceived by users and the subjective impact of frame loss not only depends on
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the concealment method but also exhibits high correlation with the disparity of the original sequence.
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It is also shown that under heavy loss conditions it is better to switch from 3D to 2D rather than presenting
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concealed 3D video to users.},
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keywords={3D video communication systems;decoder output;depth perception;frame loss concealment methods;
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loss ratios;packet loss;transmission errors;video coding;video communication;},
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doi={10.1109/PCS.2010.5702455},
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ISSN={},}
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@INPROCEEDINGS{QoMEX2011,
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author={Pinto, L. and Carreira, J. and Faria, S. and Rodrigues, N. and Assuncao, P.},
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booktitle={Third International Workshop on Quality of Multimedia Experience (QoMEX)},
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title={{Subjective quality factors in packet 3D video}},
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year={2011},
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month=sep,
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volume={},
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number={},
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pages={149-154},
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adress={Mechelen, Belgium},
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abstract={This paper presents an experimental study on subjective quality of 3D video under packet loss conditions.
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A priority network is assumed, such that the base view of a stereoscopic video stream is delivered through a
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guaranteed channel and the auxiliary view is subject to packet losses over a low priority channel.
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Due to the packetisation scheme, one frame is lost whenever a packet is lost. Three frame concealment methods
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are proposed to deal with frame losses and seven different 3DTV sequences are used. The subjective evaluation
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study was carried out for different packet loss ratios and concealment methods, using shutter glasses with
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synchronized display. The experimental results show that sequence disparity, type of loss concealment and packet
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loss pattern should be jointly considered as relevant quality factors in 3D video over packet networks.},
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keywords={3D video quality;3DTV;packet 3D video;packet networks;stereoscopic video stream;
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subjective quality factors;three-dimensional television;},
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doi={10.1109/QoMEX.2011.6065694},
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ISSN={},}
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@INPROCEEDINGS{3DTVCON2012,
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author={Carreira, J. and Assuncao, P. and Rodrigues, N. and Faria, S.},
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booktitle={3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON)},
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title={{Frame loss concealment for 3D video decoders based on disparity-compensated motion field}},
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year={2012},
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month=oct,
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volume={},
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number={},
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pages={1-4},
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adress={Zurich, Switzerland},
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abstract={This paper addresses the problem of frame loss concealment in 3D video decoders capable of handling
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stereoscopic views compliant with H.264/MVC. A joint motion-disparity compensation method is proposed
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to fully recover an estimated motion field for the lost frame in stereoscopic video,
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by using a combination of inter-view disparity-compensated motion vectors and intra-view motion extrapolation.
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The overall motion field is estimated from both the motion information of the co-located view,
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through disparity compensation, and neighboring frames of the same view, through motion vector extrapolation.
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The results show that the proposed method outperforms currently used methods such as frame-copy and motion-copy.
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In video sequences, average PSNR gains up to 1.6 dB are obtained over motion-copy, while for individual
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frames a maximum of 5 dB is achieved.},
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keywords={},
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doi={10.1109/3DTV.2012.6365468},
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ISSN={2161-2021},}
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@INPROCEEDINGS{ConfTele2013,
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author={Carreira, J. and Rodrigues, N. and Faria, S. and Assuncao, P.},
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booktitle={Conference on Telecommunications (Conftele)},
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title={{Frame Loss Concealment for H.264/AVC Stereo Video Decoders}},
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year={2013},
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month=may,
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volume={},
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number={},
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pages={1-4},
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abstract={This paper deals with reconstruction of lost frames in H.264/AVC stereo video transmitted over error-prone networks.
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The main goal of this research work is to develop an efficient concealment method to recover lost frames in stereoscopic video.
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The proposed method combines the use of both motion and disparity vectors to reconstruct missing frames in the auxiliary view of stereoscopic video.
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A disparity-compensated motion field is firstly used to fill the largest possible missing regions, and then the remaining unrecovered
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regions are reconstructed using either temporally extrapolated motion vectors or disparity vectors. A decision algorithm based on the
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temporally co-located base view frame is devised to efficiently adapt the proposed concealment scheme to different video sequences and
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different loss events. The experimental results reveal that the proposed method consistently outperforms the existing methods that only
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exploit the motion and \mbox{inter-view} similarities. The performance increases for higher bitrates and video sequences with higher
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motion achieving PSNR gains up to 2.61 dB.},
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}
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@INPROCEEDINGS{EUSIPCO2014,
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author={J. Carreira and V. D. Silva and E. Ekmekcioglu and A. Kondoz and P. Assuncao and S. Faria},
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booktitle={22nd European Signal Processing Conference (EUSIPCO)},
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title={Dynamic motion vector refreshing for enhanced error resilience in {HEVC}},
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year={2014},
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pages={281-285},
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keywords={data compression;motion estimation;video coding;H.264-AVC standard;HEVC coding technique;HEVC standard;compression efficiency;dynamic motion vector refreshing;enhanced error resiliency;error prone condition;error propagation;motion estimation process;motion estimation tool;motion information;rate-distortion performance;reference method;temporal \ac{mv} candidate;temporal dependency;temporal motion vector candidate;video quality;Encoding;Loss measurement;Resilience;Robustness;Standards;Vectors;Video coding;HEVC;error resilience;video coding},
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month=sep,}
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@INPROCEEDINGS{ICIP2014,
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author={J. Carreira and E. Ekmekcioglu and A. Kondoz and P. Assuncao and S. Faria and V. De Silva},
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booktitle={IEEE International Conference on Image Processing (ICIP)},
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title={Selective motion vector redundancies for improved error resilience in {HEVC}},
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year={2014},
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pages={2457-2461},
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keywords={image motion analysis;vectors;video coding;HEVC standard;data loss;error resilience performance;high efficiency video coding;improved error resilience;mismatched \ac{mv} predictions;motion vector coding dependencies;reduced overhead;redundant coding;selective motion vector redundancies;subsequent dependent coding units;transmission errors;Bit rate;Encoding;Redundancy;Resilience;Standards;Vectors;Video coding;HEVC;error resilience;motion vectors redundancy},
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doi={10.1109/ICIP.2014.7025497},
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month=oct,}
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@INPROCEEDINGS{ConfTele2015,
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author={J. Carreira and S. Faria and P. Assuncao and E. Ekmekcioglu and A. Kondoz},
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booktitle={Conference on Telecommunications (Conftele)},
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title={Error resilience analysis of motion vector prediction in {HEVC}},
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year={2015},
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pages={1-4},
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month=oct,}
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@INPROCEEDINGS{VCIP2015,
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author={J. Carreira and P. Assuncao and S. Faria and E. Ekmekcioglu and A. Kondoz and H.Lim},
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booktitle={IEEE International Conference on Visual Communications and Image Processing (VCIP)},
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title={Reference picture selection using checkerboard pattern for resilient video coding},
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year={2015},
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pages={1-5},
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month=dec,}
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@Article{TransactionsCircuitsSystems2017,
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author = {J. Carreira and P. Assuncao and S. Faria and E. Ekmekcioglu and A. Kondoz},
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title = {A Two-stage Approach for Robust \ac{hevc} Coding and Streaming},
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journal = {IEEE Transactions on Circuits and Systems for Video Technology},
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year = {2017},
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month = apr,
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doi = {10.1109/TCSVT.2017.2691471},
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}
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@INPROCEEDINGS{ISCAS2017,
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author={J. Carreira and P. Assuncao and S. Faria and E. Ekmekcioglu and A. Kondoz},
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booktitle={IEEE International Conference on Circuits and Systems (ISCAS)},
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title={A Robust Video Encoding Scheme to Enhance Error Concealment of Intra Frames},
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year={2017},
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pages={1-5},
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month=may,}
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