Survol des équipements vidéos pour collection de données

This is a quick overview of currently existing and/or available technologies for transportation video data collection. The information herein is current as of February 2014.

Technical requirements

• Capacity for six or more hours of independent operation, including :

1) Compatibility with and availability of external battery packs

Cameras are near-universally limited to at most two or three hours of video capture with their internal batteries alone. Use of external battery packs therefore unavoidable, and must be taken into consideration during selection.

It should be noted that the department currently has two battery packs compatible with all devices that can charge via USB.

2) Video storage capacity Though very high-capacity memory cards exist, cameras vary in both maximum supported size (often a hardware limitation) and video storage format. External memory being an impractical - if not impracticable - solution, cameras must accept internal cards of sufficient capacity to record more than six hours of continuous video, at a resolution of at least 1280x960.

• Wide viewing angle

Standard camera lenses have a viewing angle of less than 90 degrees. Unfortunately, given the constraints on camera placement in most sites (often in close proximity to the subject area) a wider viewing angle is preferred despite the inherent distortion this causes, which must be corrected.

• Resistance to the elements
• Convenience and ease of setup

The department currently has equipment to both house and encase a sufficiently small camera (the currently used GoPro Hero 2) as well as a 12 meter extendible pole for attachment to existing poles on-site,

Camera types

"Extreme-sports" cameras

	GoPro HERO2	GoPro HERO3	Contour+2
Résolution maximum	1080p	1080p	1080p