Forensic science detection of composite photographs

Photograph that is suspected to be forged one is occasionally encountered by the forensic practitioner for identification. This kind of examination is one of the most challenging problems in forensic photography. This identification is dependent on the existence of certain characteristics like in...

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Main Author: Cern, Wong Vic
Format: Article
Language:English
Published: Pusat Pengajian Sains Kesihatan, Universiti Sains Malaysia 2004
Subjects:
Online Access:http://eprints.usm.my/46932/1/PTA...Wong%20Vic%20Cern...2004...mka..-24%20pages.pdf
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author Cern, Wong Vic
author_facet Cern, Wong Vic
author_sort Cern, Wong Vic
collection USM
description Photograph that is suspected to be forged one is occasionally encountered by the forensic practitioner for identification. This kind of examination is one of the most challenging problems in forensic photography. This identification is dependent on the existence of certain characteristics like inconsistencies in magnification, contrast and perspective. The study is intended to probe further into the salient features of photograph that can be used to identify a composite/forged photograph. The study is limited to composite/forged photograph produced by conventional montage techniques. Photography experiments demonstrating the variation as a result of changes in focal length, aperture (f-stop number), object distance, lighting, shadow formations and film ISO film rating are performed. Important features that could be used in the identification of a composite/forged photograph were documented. A questioned photograph has been produced with photomontage technique. This questioned photograph is forensically examined and identified as forged a one.
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spelling usm.eprints-469322020-08-24T08:27:40Z http://eprints.usm.my/46932/ Forensic science detection of composite photographs Cern, Wong Vic R Medicine (General) Photograph that is suspected to be forged one is occasionally encountered by the forensic practitioner for identification. This kind of examination is one of the most challenging problems in forensic photography. This identification is dependent on the existence of certain characteristics like inconsistencies in magnification, contrast and perspective. The study is intended to probe further into the salient features of photograph that can be used to identify a composite/forged photograph. The study is limited to composite/forged photograph produced by conventional montage techniques. Photography experiments demonstrating the variation as a result of changes in focal length, aperture (f-stop number), object distance, lighting, shadow formations and film ISO film rating are performed. Important features that could be used in the identification of a composite/forged photograph were documented. A questioned photograph has been produced with photomontage technique. This questioned photograph is forensically examined and identified as forged a one. Pusat Pengajian Sains Kesihatan, Universiti Sains Malaysia 2004 Article NonPeerReviewed application/pdf en http://eprints.usm.my/46932/1/PTA...Wong%20Vic%20Cern...2004...mka..-24%20pages.pdf Cern, Wong Vic (2004) Forensic science detection of composite photographs. Forensic science detection of composite photographs.
spellingShingle R Medicine (General)
Cern, Wong Vic
Forensic science detection of composite photographs
title Forensic science detection of composite photographs
title_full Forensic science detection of composite photographs
title_fullStr Forensic science detection of composite photographs
title_full_unstemmed Forensic science detection of composite photographs
title_short Forensic science detection of composite photographs
title_sort forensic science detection of composite photographs
topic R Medicine (General)
url http://eprints.usm.my/46932/1/PTA...Wong%20Vic%20Cern...2004...mka..-24%20pages.pdf
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