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Video Synchronization and 3D Analysis: Cell Phones, Surveillance & Body-Worn Cameras

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Practice Area:
Governmental Liability
Toby Terpstra
55 Minutes
Audio and Video
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Video cameras capture important events connected to civil and criminal matters on a regular basis. With an ever-increasing number of cameras recording these events, there are instances when more than one camera is capturing the event at the same time from different vantages. Information contained in these additional cameras can aid in understanding key moments of the event. Incorporating video from multiple cameras for analysis of these events often requires synchronization of the videos. This research investigates methods of synchronization and the reliability of these methods. Video from body-worn cameras, dash mounted cameras, surveillance cameras, drone, and cell phone cameras was assessed. Audio video synchronization and issues related to synchronizing one video to another including frame rates and temporal drift were evaluated. The results describe the accuracy with which these videos can be synchronized using various methods.



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