Improving georef images

Hello Mickael,

For improve accuracy of georef images mission planner function, it would be great after estimating timing offset between GPS time and photos to be able to estimate camera position by calculating Delta Gps pos (lat/long/alt) / Delta time

I explain:
BEFORE GPS LOG POS time 1000 LAT 48 LONG 0 ALT 100
CAMERA TIME 1200
AFTER GPS LOG POS time 2000 LAT 53 LONG 10 ALT 200

DPOS = (AFTER POS - BEFORE POS) DTIME 1000 DLAT 5 DLONG 10 DALT 100
CAM POS RATIO = (CAM TIME- BEFORE POS TIME) / POS DTIME
POS CAM = GPS POS(lat,long,alt) BEFORE + CAM POS RATIO x DPOS(lat long alt)

Like this, assuming* that during a survey, the drone evolves at a constant speed, camera position would be determined with best accuracy than today.

Also as today, we can set shutter LAG.

And for those who want to use RTK, like this we can georef with better accuracy than today.

What do you think? it’s good new feature or not?

Adjusting timing… Makes me crazy. Why not just do this: http://ardupilot.org/copter/docs/common-camera-shutter-with-servo.html#enhanced-camera-trigger-logging Been using this for quite a while, so much better : )

I do plan on improving this interface, but time is not on my side

Why?

Because method your meaning, use EKF to determine GPS POS.

When you are using 2nd GPS, that provide RTK centimetric feature just for georef and not for ekf nav, you cannot have good precision using actual method.

however, enhanced camera timing determination using hot shoe it’s very good feature.