search

nasa-jpl / autoRIFT

A Python module of a fast and intelligent algorithm for finding the pixel displacement between two images
Apache License 2.0
214 stars 52 forks source link

seeding parameterization #62

Open ShashankBice opened 2 years ago

ShashankBice commented 2 years ago

Hi autoRIFT team, We (@whyjz,@dshean,@MaxVWDV,@willkochtitzky and I) were discussing autoRIFT seeding parameters a while back and meant to clarify this back then, but it spill through my todo list. If we understand correctly, "Downstream displacement" determines the allowable distance of the search center (can be seeded by pre-existing velocity estimates) and "search distance" determines the fudge or variability around the search center (can be seeded by the value we assume the pre-existing velocity might have changed or vary) ?

Here is a hand diagram by @dshean explaining the concept. image

Please let us know if we are interpreting this correctly :) Thanks, Shashank

alex-s-gardner commented 2 years ago

@ShashankBice That's correct. Here are a couple of slides that I presented at ASF last month, maybe their helpful: Slide21 Slide22 Slide23 Slide24

alex-s-gardner commented 2 years ago

This one might be useful as well Slide25 :