Video Error Concealment Based on Data Hiding for the Emerging Video Technologies

The new high efficiency video coding standard (HEVC) includes structures and tools that were not available in previous standards. The macrobock concept was replaced by a quad-tree structure that includes: coding units, prediction units and transform units; also, new parallelization tools are now available. Video transmissions over error prone environments have the need of reliable and efficient error concealment methods. Unfortunately, most of the existent error concealment methods interfere, or do not take advantage of the new structures and tools. In this work, a data hiding based error concealment method is proposed for the HEVC. During encoding, information is embedded into the residual transform coefficients; this information, is later retrieved and used during the error concealment process. The performed experiments and results show a superior performance when compared against the non-normative error concealment method included in the H. 264/AVC joint model.