Evaluation of Tesla Dashcam Video System for Speed Determination Via Reverse Projection Photogrammetry
Molnar, B., Peck, L.
SAE Technical Paper
- Photogrammetry and mapping
- Accident reconstruction
Digital and spatial forensics
Scenes change over time, as do vehicles that receive repairs. Capturing geometry accurately, early, and completely is what keeps every later analysis possible.
We document scenes and vehicles with 3D laser scanners, unmanned aerial systems, and photogrammetry. Our engineers are FAA Part 107 certified for the aerial work.
Each technique complements the others: laser scanning captures vertical detail that drone imagery observes poorly, while aerial photography carries roadway surface detail and color that scans do not. We published the procedure for combining the two in a forensic setting, and it produces a mesh with the accuracy of the scan and the appearance of the photography.
That geometry feeds the reconstruction, the visibility analysis, and the demonstrative exhibits, so the same captured data supports the opinion and the exhibit that explains it.
Scope
Peer-reviewed research
Authored by our engineers and peer-reviewed by external experts.
Molnar, B., Peck, L.
SAE Technical Paper
Vega, H., Suway, J., Engleman, K.
SAE Technical Paper
Grimes, C., Roescher, T., Suway, J., Welcher, J.
SAE Technical Paper
Peck, L., Cheng, M.
SAE International Journal of Transportation Safety 4(2):245–266
Suway, J., Cornetto, A., Swanson, J., Bayan, F., Wahba, R., Cipriani, A.
Collision: The International Compendium for Crash Research, Volume 7, Issue 2
Who does this work
Accident reconstruction and vehicle systems
2 publications
PE, ACTAR
Motorcycle reconstruction, photogrammetry, and testing
12 publications
ACTAR
Accident reconstruction and biomechanics
PE, ACTAR
Accident reconstruction and audio analysis
6 publications
Send us the incident location, the date, and what is in dispute. We'll discuss what analysis is possible with the evidence that exists, and what it would take to get.