Thanks @pisum , understood, as you had predicted simply changing to another model such as “Global - SpeciesNet - Google” did not improve the crops, makes sense, they are just for identifying, not for the bounding box detections.
I tested a bit more, but tweaking the confidence treshholds did not help, therefor I have reported 2 bugs on AddaxAI forum (it seems my posts become auto-flagged as spam there, and the system then hides/deletes them, but I am in contact with the the AddaxAI project maintainer Peter van Lunteren to restore them):
- 1 bug report for the software which I was using, namely Frame Grab (iOS 2.63) which generates images incompatible with AddaxAI; with steps to reproduce: https://forum.addaxai.com/t/addaxai-produces-erroneous-results-with-pictures-from-frame-grab/218 using example image https://upload.wikimedia.org/wikipedia/commons/f/fe/Tyrannus_savana_(Fork-tailed_Flycatcher)_flying_in_Ciudad_Del_Este%2C_Alto_Paraná%2C_Paraguay_(Nov_21%2C_2025_-_6%3B41_PM_UTC-03%3B00).jpg
- and subsequently I have created 1 more general bug report, based on my hypothesis why the pictures from Frame Grab were producing erroneous results in AddaxAI, namely the EXIF ‘Orientation’ metadata of the images; with steps to reproduce: https://forum.addaxai.com/t/addaxai-produces-erroneous-results-with-pictures-containing-exif-orientation-metadata/216
However, having tested AddaxAI (with MegaDetector under its hood) a bit more now, I notice that, while it generally works great for larger animals, but for ‘smaller’ arthropods/insects it often cuts of parts such as legs and antennae, which is problematic for me … Maybe I’ll create another post with regards to that on their forum in the future, or perhaps I’ll reach out to MegaDetector directly via e-mail as per https://github.com/agentmorris/MegaDetector/blob/main/megadetector-challenges.md On the other hand, I often also do not have auto-recognition of insects that take up a very large portion of the image (let’s say 70%), but where the body of the insect is not on the picture entirely, we could call them detail pictures I suppose.
I’ll do some further reading, it might be interesting to use a custom model to address some of those challenges.
Here is an attempted overview of all the tools that use MegaDetector to some extent: MegaDetector/megadetector.md at main · agentmorris/MegaDetector · GitHub