This event has passed
Online Training

Metrology: Calculating Timing From Video – Module 6

August 16, 2023
August 16, 2023
12:00 pm - 4:00 pm
Eastern Standard Time (EST)
Online   View map


The Axon Investigate Metrologist Certification gives students the foundational knowledge needed to get accurate measurements of distance and time from video evidence.

The certification track is $995 and payment is to attend both modules of Metrology: Calculating Timing From Video and Reverse Projection: Camera Match OverlayContact us with any questions or to change your schedule.

If you simply want to purchase a flexible voucher and choose a date at a later time, please do so here. If you already have a voucher and want to register for this specific class, please email the training team at

The second module of Metrology is also included with the purchase of Metrologist certification.


Event Details

In this module, students learn how to calculate accurate timing from video using the Axon Investigate Variable Frame Rate (VFR) Lightboard. This method will help students understand how to utilize recorded video while acknowledging the challenges that can complicate these calculations, such as variable refresh rates, compression, rolling shutter, and more. The introduction to HEX will help students understand the basic building blocks of video files and how different codecs read the metadata that can create inaccuracies in older methods of calculating speed.

Learning Objectives

  • Understand how timing is stored in video files
  • Comprehend the basics of HEX
  • Recognize the depth and complexity of compression
  • Demonstrate an ability to use the VFR Lightboard and articulate each of the steps in the process

Course Outline

  • Examination of timing metadata
  • Introduction to HEX
  • Advanced video compression
  • VFR Lightboard step-by-step