A novel spatial error concealment method for wireless video transmission
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Error concealment based on directional interpolation
IEEE Transactions on Consumer Electronics
Multi-directional interpolation for spatial error concealment
IEEE Transactions on Consumer Electronics
Fast DCT-based spatial domain interpolation of blocks in images
IEEE Transactions on Image Processing
Concealment of damaged block transform coded images using projections onto convex sets
IEEE Transactions on Image Processing
Overview of the H.264/AVC video coding standard
IEEE Transactions on Circuits and Systems for Video Technology
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The transmission over error-prone networks of still images or videos coded by block-based techniques like JPEG and MPEG respectively, may lead to block loss degrading, particularly the visual quality of images. Working under this environment, such as wireless communication where retransmission may be not feasible, application of error concealment techniques is consequently required to reduce degradation caused by the missing information. This paper surveys algorithms for spatial error concealment and proposes an adaptive and effective method based on edge analysis that performs well in current situations where significant loss of information is present and the data of the past reference images are not also available. The proposed method and the reviewed algorithms were implemented, tested and compared. Experimental results show that the proposed approach outperforms existing methods by up to 8.6 dB on average.