CityPorcupine
New Member
I'm wanting to buy my first dashcam (front-facing only). The purpose of it will be to record video of my trips, which I want to then extract images from to upload to street-level photography sites (e.g. Mapillary, Panoramax, etc.). I'd like to record video instead of just taking photos/timelapse as then I can also use it in case of an accident, etc. (i.e. the reason most other people buy dashcams; though for me this is not the primary goal).
Once I have a video of my trip, I'd like to use some software on my computer to extract images every few metres (not every few seconds, to avoid a bunch of duplicate images at traffic lights). I'm not sure what software to use yet (as that will likely depend on what dashcam I buy), but I've found the following potential options so far:
- https://github.com/mapillary/mapillary_tools
- https://github.com/edc22osm/viofo2jpg
- https://github.com/chrisl8/trip-viewer (not sure if this'll let me export images, or just view footage)
- https://github.com/amkulikov/dashcamigo (looks like you can export GPS as .gpx)
- I could possibly write my own Python script to do this, based on others I've seen online, but I'm not that confident in this option
My question is: which dashcams/brands save/store GPS data in a way that it can be easily extracted and used in the manner I described?
Mapillary Tools says it supports videos that contain the following telemetry structures: GPMF, CAMM, Blackvue
While viofo2jpg says it can extract GPS data from Novatek generated MP4 files.
But how do I know which dashcams support these formats/structures?
I've read some reviews and have found a few good brands/cameras that seem like good-quality options (Starvis 2 sensor, HDR, etc.) and in my price range (<$250 AUD ideally), but again, not knowing if GPS-tagged image extraction will be possible makes it hard for me to commit and buy something...
Once I have a video of my trip, I'd like to use some software on my computer to extract images every few metres (not every few seconds, to avoid a bunch of duplicate images at traffic lights). I'm not sure what software to use yet (as that will likely depend on what dashcam I buy), but I've found the following potential options so far:
- https://github.com/mapillary/mapillary_tools
- https://github.com/edc22osm/viofo2jpg
- https://github.com/chrisl8/trip-viewer (not sure if this'll let me export images, or just view footage)
- https://github.com/amkulikov/dashcamigo (looks like you can export GPS as .gpx)
- I could possibly write my own Python script to do this, based on others I've seen online, but I'm not that confident in this option
My question is: which dashcams/brands save/store GPS data in a way that it can be easily extracted and used in the manner I described?
Mapillary Tools says it supports videos that contain the following telemetry structures: GPMF, CAMM, Blackvue
While viofo2jpg says it can extract GPS data from Novatek generated MP4 files.
But how do I know which dashcams support these formats/structures?
I've read some reviews and have found a few good brands/cameras that seem like good-quality options (Starvis 2 sensor, HDR, etc.) and in my price range (<$250 AUD ideally), but again, not knowing if GPS-tagged image extraction will be possible makes it hard for me to commit and buy something...