OpenStreetMap logo OpenStreetMap

Decisions decisions..

Posted by kucai on 18 January 2022 in English.

GPS tracks versus image aligned to a surveyed position (cm level RTK) 7 km away - displacement of 20+ meters North South axis.

Surveyed position might have image provider problem, that is, improper stitching and alignment of photo imageries during processing.

GPS tracks has the problems of inherently inaccurate receiver, placement of phone during recording, and possible Kalman filter in the gps app.

Mappers have the problem of not knowing that only JOSM has the imagery alignment database.

Discussion

Log in to leave a comment