Using virtual reality for forensic examinations of injuries.
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| Title: | Using virtual reality for forensic examinations of injuries. |
|---|---|
| Authors: | Koller, Stephanie1 (AUTHOR) stephanie.koller2@irm.uzh.ch, Ebert, Lars C.1,2 (AUTHOR) lars.ebert@irm.uzh.ch, Martinez, Rosa Maria1 (AUTHOR) rosita.martinez@irm.uzh.ch, Sieberth, Till1,2 (AUTHOR) till.sieberth@irm.uzh.ch |
| Source: | Forensic Science International. Feb2019, Vol. 295, p30-35. 6p. |
| Subjects: | Virtual reality, Wounds & injuries, Documentation, Visualization, Forensic sciences, Psychological adaptation, Computer software, Photogrammetry, Psychological tests, Three-dimensional imaging |
| Abstract: | The ability to accurately determine injury dimensions is an essential property of forensic documentation. The current standard for injury documentation is photography using a scale to approximate the injury dimensions in the image. The technical qualities of the photograph, such as orthogonality, depth of the field and sharpness of the desired area, are vital to obtaining a correct measurement. Adequate training of the forensic staff can reduce technical errors; nonetheless, there will always be some loss of information when visualizing an injury as a three-dimensional (3D) object on a two-dimensional (2D) photograph. The shortcomings of 2D photographs can be resolved by using 3D photogrammetry, which allows 3D documentation of persons and their injuries. A series of photographs has to be acquired and processed in photogrammetric software to create a photorealistic 3D model. In a prior study, a mannequin equipped with wound tattoos of known dimensions was documented with 3D photogrammetry using a multi-camera device. On the created 3D model, the dimensions of the injuries were then measured and compared to the dimensions approximated from standard forensic photographs. The results showed that the photogrammetric measurements in 3D are more accurate than the approximations performed with standard forensic photographs. In this subsequent study, the created 3D model was visualized and surveyed in virtual reality (VR), and the results were compared to the previous study. Our goal was to establish how accurately injuries can be measured in VR compared to the standard forensic photo documentation and photogrammetric method that is used on computer screens. We found that the measurements in VR are more accurate than the approximations from forensic photo documentation, but slightly less accurate than the photogrammetric measurements performed on a computer screen in dedicated software. In conclusion, photogrammetric software and virtual reality tools can both be used to make accurate size measurements of forensics-relevant injuries. Furthermore, 3D models can be visualized in varying ways allowing a much better understanding and review of injuries, even after the injury has healed. [ABSTRACT FROM AUTHOR] |
| Copyright of Forensic Science International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 134203999 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Using virtual reality for forensic examinations of injuries. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Koller%2C+Stephanie%22">Koller, Stephanie</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> stephanie.koller2@irm.uzh.ch</i><br /><searchLink fieldCode="AR" term="%22Ebert%2C+Lars+C%2E%22">Ebert, Lars C.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> lars.ebert@irm.uzh.ch</i><br /><searchLink fieldCode="AR" term="%22Martinez%2C+Rosa+Maria%22">Martinez, Rosa Maria</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> rosita.martinez@irm.uzh.ch</i><br /><searchLink fieldCode="AR" term="%22Sieberth%2C+Till%22">Sieberth, Till</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> till.sieberth@irm.uzh.ch</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Forensic+Science+International%22">Forensic Science International</searchLink>. Feb2019, Vol. 295, p30-35. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Virtual+reality%22">Virtual reality</searchLink><br /><searchLink fieldCode="DE" term="%22Wounds+%26+injuries%22">Wounds & injuries</searchLink><br /><searchLink fieldCode="DE" term="%22Documentation%22">Documentation</searchLink><br /><searchLink fieldCode="DE" term="%22Visualization%22">Visualization</searchLink><br /><searchLink fieldCode="DE" term="%22Forensic+sciences%22">Forensic sciences</searchLink><br /><searchLink fieldCode="DE" term="%22Psychological+adaptation%22">Psychological adaptation</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+software%22">Computer software</searchLink><br /><searchLink fieldCode="DE" term="%22Photogrammetry%22">Photogrammetry</searchLink><br /><searchLink fieldCode="DE" term="%22Psychological+tests%22">Psychological tests</searchLink><br /><searchLink fieldCode="DE" term="%22Three-dimensional+imaging%22">Three-dimensional imaging</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The ability to accurately determine injury dimensions is an essential property of forensic documentation. The current standard for injury documentation is photography using a scale to approximate the injury dimensions in the image. The technical qualities of the photograph, such as orthogonality, depth of the field and sharpness of the desired area, are vital to obtaining a correct measurement. Adequate training of the forensic staff can reduce technical errors; nonetheless, there will always be some loss of information when visualizing an injury as a three-dimensional (3D) object on a two-dimensional (2D) photograph. The shortcomings of 2D photographs can be resolved by using 3D photogrammetry, which allows 3D documentation of persons and their injuries. A series of photographs has to be acquired and processed in photogrammetric software to create a photorealistic 3D model. In a prior study, a mannequin equipped with wound tattoos of known dimensions was documented with 3D photogrammetry using a multi-camera device. On the created 3D model, the dimensions of the injuries were then measured and compared to the dimensions approximated from standard forensic photographs. The results showed that the photogrammetric measurements in 3D are more accurate than the approximations performed with standard forensic photographs. In this subsequent study, the created 3D model was visualized and surveyed in virtual reality (VR), and the results were compared to the previous study. Our goal was to establish how accurately injuries can be measured in VR compared to the standard forensic photo documentation and photogrammetric method that is used on computer screens. We found that the measurements in VR are more accurate than the approximations from forensic photo documentation, but slightly less accurate than the photogrammetric measurements performed on a computer screen in dedicated software. In conclusion, photogrammetric software and virtual reality tools can both be used to make accurate size measurements of forensics-relevant injuries. Furthermore, 3D models can be visualized in varying ways allowing a much better understanding and review of injuries, even after the injury has healed. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Forensic Science International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.forsciint.2018.11.006 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 30 Subjects: – SubjectFull: Virtual reality Type: general – SubjectFull: Wounds & injuries Type: general – SubjectFull: Documentation Type: general – SubjectFull: Visualization Type: general – SubjectFull: Forensic sciences Type: general – SubjectFull: Psychological adaptation Type: general – SubjectFull: Computer software Type: general – SubjectFull: Photogrammetry Type: general – SubjectFull: Psychological tests Type: general – SubjectFull: Three-dimensional imaging Type: general Titles: – TitleFull: Using virtual reality for forensic examinations of injuries. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Koller, Stephanie – PersonEntity: Name: NameFull: Ebert, Lars C. – PersonEntity: Name: NameFull: Martinez, Rosa Maria – PersonEntity: Name: NameFull: Sieberth, Till IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 02 Text: Feb2019 Type: published Y: 2019 Identifiers: – Type: issn-print Value: 03790738 Numbering: – Type: volume Value: 295 Titles: – TitleFull: Forensic Science International Type: main |
| ResultId | 1 |
