Document Detail

Detection of Transcribed Seal Impressions Using 3-D Pressure Traces.
MedLine Citation:
PMID:  22937799     Owner:  NLM     Status:  Publisher    
Seals have been frequently used to certify that individuals or organizations have authorized or approved a document that bears these impressions. Much attention has been focused on the detection of forged seal impressions to expose and prevent seal-related frauds. This paper describes an image-processing technique that detects seal impressions transferred from a genuine document to a target document using transcription media. The proposed method utilizes a three-dimensional (3-D) scanner to generate a pressure trace map of the suspect seal impression. After utilizing a noise-reduction algorithm to improve image quality, the pressure map is aligned with a 2-D image of the same seal impression. The pressure ratio, determined by comparing the pressure map and inked impression of a suspect seal, can be used to determine whether the seal is genuine or was transferred to the target document. The results show that the proposed technique successfully identified transcribed seal impressions with an error rate of <1%.
Joong Lee; Seong G Kong; Young-Soo Lee; Jun-Suk Kim; Nak-Eun Jung
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-31
Journal Detail:
Title:  Journal of forensic sciences     Volume:  -     ISSN:  1556-4029     ISO Abbreviation:  J. Forensic Sci.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-9-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375370     Medline TA:  J Forensic Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 American Academy of Forensic Sciences.
Forensic Medicine Division, National Forensic Services, Seoul, 158-707, South Korea.
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