Robust Error Detection for H.264/AVC Using Relation Based Fragile Watermarking
Olıvia Némethová, Gonzalo Calvar Forte, Markus Rupp · 2006
In this paper a robust mechanism for detecting er- rors in H.264/AVC video streams is proposed and evaluated in the context of transmission over mobile networks. The pro- posed algorithm utilizes fragile watermarking applied at mac- roblock level for the detection of errors in the decoded VLC stream. Watermarking based approaches are compared with a previously proposed alternative error detection mechanism us- ing parity bits. Two watermarking schemes are investigated - forced even watermarking and a novel relation based wa- termarking. The obtained results show considerable improve- ment of the quality at the decoder for the proposed watermark- ing method, while preserving the data rate.