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Spatial Interpolation Algorithm for Error Concealment

Published

Author(s)

Hamid Gharavi, 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.
Conference Dates
March 31-April 4, 2008
Conference Location
Las Vegas, NV
Conference Title
IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2008)

Keywords

Beam forming, directional antenna, mobile ad hoc networks, AODV, DSR, multi-hop networks, interference cancellation
Created April 9, 2008, Updated February 19, 2017