align thermal images from XT2

[dowallin]

Some time ago, I posted a request for guidance on aligning thermal images from an XT2 camera (512X640 resolution 13 mm lens). I've received no suggestions so hoping that by reposting I might get some suggestions. I have followed the same workflow that I've used for aligning standard RGB images but when doing so, only 1/4 to 1/2 of the images align.

I would be grateful for any suggestions.

Regards,
David Wallin

[Alexey Pasumansky]

Hello David,

For low resolution imagery I can recommend the following alignment parameters:
- Highest accuracy,
- Reference preselection enabled (providing that the coordinate information is available), Generic option - disabled,
- 40 000 key points,
- 8 000 tie points,
- adaptive camera model fitting - disabled.

Additionally you can fix the calibration parameters prior to the camera alignment operation via the Camera Calibration dialog. To do that you need to input the focal length and sensor pixel size in mm (unless loaded automatically from EXIF) to the corresponding fields of the dialog.

[dowallin]

Alexy,
I tried this and it helps a bit...but not much. I now have 1145 of 2104 images aligned. Do you have any other suggestions for how to proceed?

Regards,
David