dashcam2gps

Extracts GPS tracks and speed from dashcam videos with embedded overlays, and exports them as a GPX file that can be loaded into mapping tools (Google Earth, Garmin, etc.).

Features

• Supports dashcam videos with overlay text like 102KM/H N:53.8235 E:10.5033
• Extracts:
  • Latitude / Longitude
  • Speed (km/h)
• Exports to GPX 1.1 with speed included

Example Output

<!-- ... -->
<trkpt lat="53.8235" lon="10.5033">
<extensions>
  <speed>102</speed>
</extensions>
</trkpt>
<!-- ... -->

Installation

1. Clone the repo.

2. Install the dependencies:

   pip install -r requirements.txt

3. Install Tesseract OCR.

Usage example

python extract.py video.mp4 -o data.gpx -s 10

Notes

• Adjust sample_seconds (lower = more precise track, higher = faster processing) to your liking.
• Crop region may need adjustment depending on your dashcam overlay location. I am using a VIOFO A229 Pro, the region might be different for your dashcam!
• Preprocessing is applied for better OCR accuracy.

Roadmap

• Support for multiple dashcams
• Faster image recognition
• Parameters (units, sample count, region, output format, etc.)
• Allow multiple videos as input
• Track analysis