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학술대회 A Forensic Investigation for Suspects' Digital Evidences Using Image Categorization
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김영수, 홍도원, 원동호
Advanced Software Engineering and Its Applications (ASEA) 2008, pp.241-244
08MS2600, 정보투명성 보장형 디지털 포렌식 시스템 개발, 홍도원
In computer crimes, even in general crimes, important evidence or clues are increasingly stored in a variety of electronic media, such as computer or mobile devices. The digital data is easily duplicated and it is difficult to discriminate the original from a copy. Further, the digital data can be easily falsified, changed, or deleted from the original data. Therefore, criminal investigations need high level forensic technologies to get better evidences from digital data in suspects ' computers. This paper is about forensic analyses for digital evidences including a lot of images like pictures and photos. Usually forensic examiners open to check every image files included at hard disks of suspects' computers or memory cards. If they have huge amount of images, it takes too much time to check and analyze them. Therefore we use an image filter applying a learning model to divide them into some categories automatically. Through this way, forensic examiners can check out only related image files and then reduce analyzing time. Since, in advance, forensic examiners make some categories for classifying images and input and learn huge amount of image samples to this image filter, accuracy for classifying image files could be improved. © 2008 IEEE.
KSP 제안 키워드
Computer crimes, Digital data, Electronic media, Forensic Investigation, Hard disks, Image Filter, Image files, Learning model, Mobile devices, digital evidence, image categorization