It works pretty much like photo mapping, except that a camcorder is used instead of a still camera.Mount it somewhere in your vehicle or carry it with you, and leave it recording for the duration of your journey.
Resolution is quite low for mapping (lower than a TV image) unless you kiss each road sign you see; you might be able to partly compensate for that as you tilt your head and thus follow signs as you drive past them.
Storage should be sufficient for mapping, though the vendor's data sounds as if SDHC cards are not supported, thus limiting the user to a maximum of 3 GB storage space altogether.
You can also get a cigarette lighter 3-way USB adaptor, and power up 3 cams (front and sides) plus a GPS.
As of 2016, a number of dash cams are available which record geo-coded videos, in MOV or MP4 format, at HD resolution (typically 350MB for a three minute MOV video, or 150MB for three minutes of 720P MOV video).
The video data gets recorded as a stream on tape, with timestamps for each frame.
You will need an IEEE 1394 (Firewire) port on your PC and the appropriate software to get the data into your PC.
With this application, we provide the following functions: (for Windows and Mac) - Easily & intuitively make impressive movies of your experience taken by Action Cam.
(Merge videos, GPS data overlay, slow/fast-forward editing, and trim/combine) - Get the latest notifications related to Action Cam and access Action Cam channels to get the latest information.
Manual correlation Works always, but is most tedious of all: Note the timestamp of anything interesting in the video (e.g.