Video/Imaging Technology & Analysis Subcommittee

Other Work Products

Interlaboratory Comparison

• The Digital/Multimedia SAC, Facial & Iris Identification, and Video/Imaging Technology Analysis Subcommittees collaborated with North Carolina State University to conduct a global interlaboratory study exercise evaluating OSAC Proposed Standard 2022-S-0001, Standard Guide for Image Comparisons. The proposed standard is currently on the OSAC Registry.
  • The published results of the Interlaboratory Study: Assessing the consistency and accuracy for determining source of face, hands, and clothing images across forensic practitioners and laypersons are published.
  • The publication is available as open access through the Journal of Forensic Sciences: https://onlinelibrary.wiley.com/doi/10.1111/1556-4029.70368
     
  • Highlights of the study:
    • OSAC proposed standard 2022-S-0001 details five opinion categories for determining the image source.
    • Forensic practitioners and laypersons were recruited to assess the technical soundness of 2022-S-0001.
    • Participants were given face, hand, or clothing images and determined the source using 2022-S-0001.
    • Practitioners were statistically more accurate at determining the true source of face and hands images over laypersons.
    • Practitioners had statistically higher agreement than laypersons for face, hand, and clothing images.

Process Maps

• Forensic Gait Analysis Process Map (Current Practice), March 20, 2025.

References

• Guidance on Non-routine Offsite Forensic Examination of Digital/Multimedia Evidence.

Reference Documents

• Scientific Working Group on Digital Evidence (SWGDE) 17-V-001-1.5 Technical Overview of Digital Video Files
• Is this a Deepfake?  This is an introductory guide to synthetic, repurposed, and deepfake digital media (images, audio, video, etc.).
  • Desktop Version, being updated.
  • Trifold Version, being updated.

Research & Development Needs

• See the research and development needs identified by the Video/Imaging Technology and Analysis subcommittee.

Webinars, Presentations & Training Videos

• Video/Imaging Technology and Analysis (VITAL) Subcommittee Updates, International Association for Identification (IAI) Conference, August 2022.
• Video/Imaging Technology and Analysis (VITAL) Subcommittee Updates, American Academy of Forensic Sciences (AAFS) Annual Scientific Meeting, February 2021.
• Video/Imaging Technology and Analysis (VITAL) Subcommittee Updates, AAFS Annual Scientific Meeting, February 2020.
• Video/Imaging Technology and Analysis (VITAL) Subcommittee Updates, IAI Conference, August 2019.
• Video/Imaging Technology and Analysis (VITAL) Subcommittee, IAI Conference, August 2018.

Discipline-Specific Bibliographies and References

These documents/websites may contain information to help forensic scientists, judges, lawyers, researchers, and other readers better understand the nature, scope, and foundations of the individual disciplines as currently practiced. The identification of these documents does not represent an endorsement by OSAC or NIST. Only standards that are posted on the OSAC Registry and Technical Guidance documents, are endorsed by OSAC. The referenced documents may be subject to copyright. Note: Subcommittee position statements or responses to data collections by the subcommittee do not necessarily represent the position of OSAC or NIST.

• ASTM (http://www.astm.org)
• ENSFI/IFSA (http://www.enfsi.eu)
• ISO (http://www.iso.org)
• IACP (International Association Chiefs of Police) (http://www.iacp.org)
• Journal of Forensic Sciences (https://www.aafs.org)
• Journal of Forensic Identification (https://www.theiai.org)
• SWGIT (https://www.swgde.org/documents/swigit-document-archive)
• SWGDE (https://www.swgde.org)