GPS Prior Matcher

About

This software is a feature matcher with gps prior (overlap zone assumption).
We use COLMAP for feature extraction, geometric verification, 3d reconstruction, and its database format to handle data.

Applies above riding video properties in feature matching step using gps informations.

Dataset

The riding video frames which only moves to forward.
Every frames must have gps information with EXIF. (e.g. spline interpolation)

How to use

1. Extract SIFT features (COLMAP)
2. Run gps_prior_matcher.py
   • Check gps_prior_matcher.py for various options.
3. Do geometric verification (COLMAP)
   • COLMAP only uses match pairs in two_view_geometries table.
   • You can run custom feature match with match_info.txt to get two_view_geometries.
4. Run 3D reconstruction (COLMAP)