Toby Terpstra

Principal Forensic Animator

Expertise:
• Video Analysis
• Photogrammetry
• 3D Computer Visualization

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Bio
Publications
Videos

Mr. Terpstra specializes in photogrammetry, video analysis, and 3D site reconstruction. He has testified in state and federal courts on civil and criminal matters. He has published peer-reviewed in the areas of reverse camera projection, onsite photogrammetry, lens distortion correction, photo-scanning, camera-matching photogrammetry, video analysis, 3D scene reconstruction, LiDAR, and acoustics. He is a certified forensic video technician and serves as a peer reviewer for research papers in the Occupant Protection: Accident Reconstruction Session for the SAE World Congress, for the Association of for Crime Scene Reconstruction, and the Association of Firearm and Tool Mark Examiners.

Mr. Terpstra is also an instructor for the ACTAR accredited, three-day course offered by SAE titled: “Photogrammetry and Analysis of Digital Media”, where he pulls from years of experience working on cases involving product liability, vehicular accidents, tree failures, fires, sports injuries, industrial accidents, use of force, crime scenes and shooting incident reconstruction.

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Featured Publications:
Society of Automotive Engineers (SAE),
Acoustical Society of America (ASA)
Association for Crime Scene Reconstruction (ACSR)

“A Comparison of Metrology Used in Documenting Shooting Incident Trajectories,” ACSR, 2020
“Empirical Evaluation of In-Field, Binaural Record and Playback Reproduction,” ASA, 2019
“The Application of Augmented Reality to Reverse Camera Projection,” SAE, 2019
“Reconstruction of 3D Accident Sites Using USGS LiDAR, Aerial Images, and Photogrammetry.” SAE, 2019
“Using Multiple Photographs and USGS LiDAR to Improve Photogrammetric Accuracy” SAE, 2018
“Comparing a Timed Exposure Methodology to the Nighttime Recognition from SHRP-2 Naturalistic Drivers,” SAE, 2017
“An Evaluation of Two Methodologies for Lens Distortion Removal When EXIF Data is Unavailable,”SAE, 2017
“A Survey of Multi-View Photogrammetry Software for Documenting Vehicle Crush,” SAE, 2016
“Photogrammetric Measurement Error Associated with Lens Distortion,” SAE, 2011
“Comparison of Sound Pressure Levels of Mid-to-Large Size On-Road Motorcycles Through Volume Modeling,”ASA, Oct. 2009
“Evaluation of Discrete Vehicle Accident Sounds for use in Accident Reconstruction,”ASA, 2008
“Analysis of Commonly Witnessed Vehicle Accident Sounds in situ,”ASA, Oct. 2008
“Methodology for Physics-Based Sound Composition in Forensic Visualization,” ASA, 2007
Methodology for Reconstruction of Vehicle Accident Acoustics for use in Forensic Visualization, ASA, May 2007
“Benefits of 3D Laser Scanning in Vehicle Accident Reconstruction,”FARO Technology White Paper, May, 2012

Kineticorp investigated an officer-involved shooting that occurred at a residential apartment building. Officers were requested to respond to a residence where an individual was allegedly acting erratic and wielding a knife.

Kineticorp Photogrammetry Expert, Toby Terpstra, discusses his latest research on how experts can use USGS LiDAR, aerial images, and photogrammetry to reconstruct a scene when they are unable to access a site.

Kineticorp Senior Forensic Animator, Toby Terpstra, discusses our latest research “The Application of Augmented Reality to Reverse Camera Projection.” which he presented at SAE International‘s 2019 World Congress Event.