Al-Mualla, MES

Bull, DR

Canagarajah, CN

English

An error concealment algorithm based on motion field interpolation is presented. For each pixel 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 pixel. Overlapped motion compensation is used to combine this algorithm with a boundary matching error concealment algorithm. Simulation results demonstrate the superior performance of the proposed algorithm

Al-Mualla, M

Explore Bristol Research

Temporal error concealment using motion field interpolation

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

Coding and Cell-Loss Recovery in DCT-Based Packet Video,”

Error Concealment Based on Directional Interpolation,”

Error Concealment Techniques for an All-Digital High-Definition Television System,”

Motion Compensation for Video Compression Using Control Grid Interpolation,”

Recovery of Lost or Erroneously Received Motion

Temporal Image Sequence Prediction Using Motion Field Interpolation,” Signal Processing:

Error concealment using motion field interpolation

https://research-information.bris.ac.uk/files/3014376/almualla_IEEE_ICIP_1998.pdf

Error concealment using motion field interpolation

Abstract

Similar works

Full text

Available Versions

Explore Bristol Research

Explore Bristol Research