Multiple-reference temporal error concealment

ME Al-Mualla, CN Canagarajah… - ISCAS 2001. The 2001 …, 2001 - ieeexplore.ieee.org
ME Al-Mualla, CN Canagarajah, DR Bull
ISCAS 2001. The 2001 IEEE International Symposium on Circuits and …, 2001ieeexplore.ieee.org
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 …
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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