3 ms·
The scale issue is a problem with any software like this unfortunately, it makes doing this type of processing in chunks very difficult as you are getting diffe
by cameronfraser 6y ago
The scale issue is a problem with any software like this unfortunately, it makes doing this type of processing in chunks very difficult as you are getting different scale outputs and nothing really relating the chunks together. OpenSFM does some neat stuff where they use location data and just search for matches between images near that location.
- rkagerer 6y agoDumb question: could you not simply include an object in the scene that is of known dimensions and use that to calibrate scale?
- zo1 6y agoYes, you definitely could? Not sure for this piece of software specifically though. But for land-based photogrammetry in general, they usually use known control-points that have fixed 3d coordinates attached to them in order to calibrate their models. They also use that to effectively "tie" the resulting model to an actual location on the map.