Jeff Suway: quantifying luminance with a camera, video analysis, & his love of retroreflective tape

Lou sits down with Jeff Suway of JS Forensics to discuss how he got into recon, the current state of his firm, Jeff's real love: retroreflective tape, quantifying luminance with a camera, video analysis, and much more.

The podcast is available to watch here.

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Connect with Jeff

JS Forensics

Nitere

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Timeline of Topics

00:00:00 – Jeff’s background and introduction to forensics

00:20:16 – JS Forensics: Jeff’s vision for the company and his current team

00:31:45 - Jeff’s fascination with retroreflective tape

00:44:35 – Quantifying luminance with a consumer grade camera

00:59:00 – Presenting in the courtroom

01:02:26 – How to take contrast measurements

01:19:53 – Nitere applications

01:28:11 – Necessities for a recon trying to do nighttime analysis

01:39:57 – Methods and tools Jeff’s experimenting with

01:43:06 – How Jeff stays in touch with the latest tech in the industry

01:47:11 – Rapid fire: What Jeff uses point clouds for, best investment under 5k, and most used papers

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• Papers Discussed (in order of appearance)
  • Suway, J., Suway, S., “A Method for digital Video Camera Calibration for Luminance Estimation” Society of Automotive Engineers (SAE) World Congress and Exhibition, 2017, SAE Paper No. 2017-01-1368
  • Suway, J., Suway, S., "A More Robust Method for Digital Video Camera Calibration for Luminance Estimation" SAE Technical Paper 2022-01-0802, 2022
  • Muttart, J., "Factors that Influence Drivers' Response Choice Decisions in Video Recorded Crashes," SAE Technical Paper 2005-01-0426, 2005, https://doi.org/10.4271/2005-01-0426.
  • Cipriani, A., Bayan, F., Woodhouse, M., Cornetto, A. et al., "Low Speed Collinear Impact Severity: A Comparison Between Full Scale Testing and Analytical Prediction Tools with Restitution Analysis," SAE Technical Paper 2002-01-0540, 2002, https://doi.org/10.4271/2002-01-0540.
  • Suway, J., Welcher, J., “A Quantitative Method for Accurately Depicting still photographs or video of a night-time scene Utilizing Equivalent Contrast” Society of Automotive Engineers (SAE) World Congress and Exhibition, 2016, SAE Paper No. 2016-01-1463.