Some questions about positioning accuracy

[Jiatutu]

Firstly, thanks for your cracking work and open sourcing this repo - I feel like I am definitely standing on the shoulders of giants!
The problem is:
1、How to choose GeometricFilter filtering methods and each method to adapt to the scene, if I use UAV aerial photography, to make orthographic image, which is better to use?
2、How to set the value of center weight？
3、The -P method has different results than the geodesy_registration_to_gps_position method, which is more accurate？