Reviewing Annotations in Frigate+

[chrisgilldc]

What's a good way to review already annotated images in Frigate+ for reannotation? I have a few cases where I need to do this:

1. I had tried to annotate people sitting in cars as 'people' for a custom model, but that isn't working, so I want to go back and remove those annotations.
2. I've enabled the School Bus tag, so I want to go change the 'car' annotations that's on existing school bus images.
   The Frigate+ web interface is pretty tedious to do this in - no way to filter images by what tags are on it, or to easily move from one to the next without going back, and so on. Is there an outside tool I should use? Or just blow it all away and start over?
   Thanks!

[inkeep-ai-assistant[bot]]

Frigate+ provides annotation and verification tools directly in its web interface, but there is no official support for external tools to manage or bulk-edit annotated images. To review and reannotate images, you need to use the Frigate+ annotation interface at https://plus.frigate.video, where you can click each image, adjust bounding boxes, delete labels, or add new ones(1)(2).

You can use keyboard shortcuts in the annotation UI to speed up the workflow, such as using arrow keys to navigate between images, "del" to remove boxes, and "w" to add boxes(2). However, there is no built-in filter to show images by specific existing tags or a bulk relabel feature(2).

If you've added a new label (like "School Bus"), existing images won't be automatically reviewed for that label, and you'll see them as "unverified" until you manually annotate or verify them(3). All existing images remain part of the training set, even if not fully re-verified, but missing or incorrect labels can affect model accuracy(2)(3).

There is no documented outside tool or bulk annotation method for Frigate+; the workflow is designed to encourage careful manual review for best model performance(2)(3). If you want a completely clean slate, you would need to manually delete your submissions and start over, but this is not required for most use cases(3).

📚 Sources:

1. Frigate+
2. Annotating your images
3. Adding new annotation labels to a camera in Frigate+. Need to verify all the images again?

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Have another question? Just tag @inkeep.

[NickM-27]

1. There is nothing here currently, though if it is clearly a person to your eyes I don't think there is a reason to undo it
2. When you enable school bus inside of Frigate+ camera settings, Frigate itself will use the suggestions model to automatically look for school buses

[NickM-27]

also worth noting improved workflow and tools are currently being worked on

[chrisgilldc]

Ah, neat, that's good to know on point 2.
As for point 1, I think that attempt to annotate has gotten me a number of false positives on things like signposts and streetlights in the dusk. Basically, any time a surface looks like window reflections.

[kirk56k]

Ya, I'm waiting for the more advanced tools too for mostly the same reason. There are several objects I was a little too liberal with annotating, and now my customized model is garbage with so many false positives it's almost unusable. I've gone back to using the Frigate+ Base Models, which seem to work much better. I have over 1000 images annotated, and I need to go through them all and delete some and re-annotate others. But the current system is too clunky to do that reasonably. I am very much looking forward to the new system.