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Multiple-reference temporal error concealment

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3 Author(s)
Al-Mualla, M.E. ; Etisalat Coll. of Eng., Emirates Telecommun. Corp., Sharjah, United Arab Emirates ; Canagarajah, C.N. ; Bull, D.R.

This paper demonstrates the benefits of extending the temporal error concealment process to more than one reference frame. In this context, the paper proposes two multiple-reference temporal concealment techniques. Both techniques are extensions of the single-reference motion field interpolation (MFI) technique. The first technique uses MFI to provide candidate concealments from a number of reference frames. Boundary matching (BM) is then used to select one concealment from this set of candidates. In the second technique, multi-hypothesis compensation is used to combine the candidate concealments. In other words, the concealment in this case is a weighted sum of all candidate concealments. The superior performance of the proposed techniques is demonstrated within a multiple-reference video codec over a range of error rates and frame distances

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Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on  (Volume:5 )

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