A data hiding scheme to reconstruct missing blocks for JPEG image transmission

Authors:
Jia Hong Lee;Jyh-Wei Chen;Mei-Yi Wu
Affiliations:
Department of Information Management, Kun Shan University of Technology;Department of Information Management, Kun Shan University of Technology;Department of Information Management, Chang Jung University, Tainan, Taiwan, R.O.C.
Venue:
KES'05 Proceedings of the 9th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part II
Year:
2005

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Abstract

This paper presents a new approach for recovering blocks of missing data in the mobile radio environment. When block based compression algorithm such as JPEG are used as part of the wireless transmission process and such images are transmitted over fading channels, the noise effects will usually cause block missing or damaging. The proposed method is based on quantizing the difference of coefficients between two distinct blocks and carefully encoding and embedding them in the least significant bits of other blocks. The proposed scheme can recover high-quality JPEG images from the corresponding corrupted images up to a block loss rate of 20% without carrying any side information. Experimental results show the proposed method outperforms than the method of Shao et al.[1].