In the context of block-based video coding, two error concealment algorithms are presented. The first algorithm is based on bilinear motion field interpolation (BMFI). For each pel in a damaged block, the algorithm recovers a motion vector using bilinear interpolation of neighbouring motion vectors. This vector is then used to conceal the damaged pel. A reduced complexity version of this algorithm is also presented. The second algorithm uses overlapped motion compensation to combine the first algorithm with a boundary matching error concealment algorithm. Simulation results show that at low error rates the first algorithm outperforms other concealment techniques, but its performance starts to deteriorate with increasing error rate. The second algorithm, however, maintains a superior performance regardless of the error rate. Simulation results within an H.263 codec are also presented.
|Translated title of the contribution||Error concealment using motion field interpolation|
|Title of host publication||Unknown|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||512 - 516|
|Publication status||Published - Oct 1998|
|Event||International Conference on Image Processing, 1998 (ICIP '98) - Chicago, IL, United States|
Duration: 1 Oct 1998 → …
|Conference||International Conference on Image Processing, 1998 (ICIP '98)|
|Period||1/10/98 → …|
Bibliographical noteConference Proceedings/Title of Journal: IEEE Int. Conference on Image Processing (ICIP), Chicago
Rose publication type: Conference contribution
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