Title :
Reassembly of Fragmented JPEG Images Containing Restart Markers
Author :
Karresand, Martin ; Shahmehri, Nahid
Author_Institution :
Dept. of Inf. Syst., Swedish Defence Res. Agency, Linkoping
Abstract :
A fragmented JPEG image is currently not possible to reassemble without knowing the ordering of the fragments. This is a problem for the police when they search for illegal digital images. This paper presents a method to reassemble fragmented JPEG images containing restart markers. Empirical evaluations show that it is possible to reassemble images taken from a set containing fragments of several images.
Keywords :
data compression; image coding; fragmented JPEG image; image reassembling method; image restart marker; Computer networks; Decoding; Digital images; Discrete cosine transforms; File systems; Hard disks; Image retrieval; Information retrieval; Information science; Information systems; computer forensics; digital forensics; digital image reassembly; file carving;
Conference_Titel :
Computer Network Defense, 2008. EC2ND 2008. European Conference on
Conference_Location :
Dublin
Print_ISBN :
978-0-7695-3479-4
DOI :
10.1109/EC2ND.2008.10
