Error concealment for partially damaged blocks

Abstract

We developed an ad-hoc spatial error concealment (EC) scheme for two different inter-block interleaving techniques known as triangular and coefficient level interleaving (R. Hasimoto-Beltran et al., December 2004). Triangular EC scheme works in the transform domain and makes use of AC information in the neighboring blocks in order to estimate the missing AC coefficients in the partially damaged block. The EC for the coefficient level interleaving is applied in the space domain and the main purpose is to eliminate the blocking artifacts due to the loss of few AC coefficients. We show that Intra-block interleaving along with our developed EC schemes increase significantly the quality of the received image/video information when transmitted over bursty channels with high error rate (50%)