Spatial Interpolation Algorithm For Error Concealment

Shrey Bhala, Shaoshuai Gao

Abstract


In this paper, we propose a new spatial interpolation algorithm for Intra-Frame error concealment. The method
aims at interpolating areas in the image, which have been affected by packet loss. We have proposed an edge detection
technique to aid the bilinear interpolation. The edge detection scheme is based on designing a robust Hough transform-based
technique that is capable of systematically connecting edges irrespective of the number of edge points surrounding missing
areas. The connected edges are used to divide the missing areas into different regions for interpolation along the directions of
each detected line. Simulation results demonstrate that the proposed algorithm can recover the missing areas with a greater
accuracy, when compared with the bilinear interpolation technique.


Keywords


Error concealment, directional interpolation, Hough transform, region growing.

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DOI: http://dx.doi.org/10.52155/ijpsat.v3.1.51

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