Identity statement area
Reference TypeConference Paper (Conference Proceedings)
Last Update2012:
Metadata Last Update2020: administrator
Citation KeyGarciaFreitasRigoFariAraú:2012:ErCoUs
TitleError Concealment Using a Halftone Watermarking Technique
FormatDVD, On-line.
Access Date2021, Jan. 27
Number of Files1
Size7611 KiB
Context area
Author1 Garcia Freitas, Pedro
2 Rigoni, Ronaldo
3 Farias, Mylene C. Q.
4 de Araújo, Aletéia P. F.
Affiliation1 University of Bras ́lia (UnB)
2 University of Bras ́lia (UnB)
3 University of Bras ́lia (UnB)
4 University of Bras ́lia (UnB)
EditorFreitas, Carla Maria Dal Sasso
Sarkar, Sudeep
Scopigno, Roberto
Silva, Luciano
Conference NameConference on Graphics, Patterns and Images, 25 (SIBGRAPI)
Conference LocationOuro Preto
DateAug. 22-25, 2012
Book TitleProceedings
PublisherIEEE Computer Society
Publisher CityLos Alamitos
Tertiary TypeFull Paper
History2012-09-20 16:45:34 :: -> administrator :: 2012
2020-02-19 02:18:27 :: administrator -> :: 2012
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Is the master or a copy?is the master
Content Stagecompleted
Content TypeExternal Contribution
KeywordsError concealment, H.264, QIM, watermarking, halftoning.
AbstractIn this paper, we propose an error concealment technique for H.264 coded videos. The algorithm is targeted at compressed videos degraded after packet losses caused by transmission over an unreliable channel. We use a combination of watermarking and halftoning (dithering) techniques. At the encoder side, a dithered version of each video frame is em- bedded into the video using a watermarking technique. The watermarking technique used by the proposed algorithm is a modified version of the Quantization Index Modulation (QIM) algorithm, which provides a good data hiding capacity. At the decoder side, the algorithm identifies which packets of the video were lost, extracts the corresponding mark, and applies an inverse halftoning technique to estimate the original content. The algorithm is fast and has a good performance, being able to restore content with a better quality than the default H.264 error concealment algorithm.
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