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Detic: ADetector withimageclasses that can use image-level labels to easily train detectors.

Detecting Twenty-thousand Classes using Image-level Supervision,
Xingyi Zhou, Rohit Girdhar, Armand Joulin, Philipp Krähenbühl, Ishan Misra,
ECCV 2022 (arXiv 2201.02605)

• Detectsany class given class names (usingCLIP).

• We train the detector on ImageNet-21K dataset with 21K classes.

• Cross-dataset generalization to OpenImages and Objects365without finetuning.

• State-of-the-art results on Open-vocabulary LVIS and Open-vocabulary COCO.

• Works for DETR-style detectors.

Seeinstallation instructions.

Update April 2022: we released more real-time modelshere.

Replicate web demo and docker image:

Integrated intoHuggingface Spaces 🤗 usingGradio. Try out the web demo:

Run our demo using Colab (no GPU needed):

We use the default detectron2demo interface.For example, to run our21K model on amessy desk image (image creditDavid Fouhey) with the lvis vocabulary, run

mkdir modelswget https://dl.fbaipublicfiles.com/detic/Detic_LCOCOI21k_CLIP_SwinB_896b32_4x_ft4x_max-size.pth -O models/Detic_LCOCOI21k_CLIP_SwinB_896b32_4x_ft4x_max-size.pthwget https://eecs.engin.umich.edu/~fouhey/fun/desk/desk.jpgpython demo.py --config-file configs/Detic_LCOCOI21k_CLIP_SwinB_896b32_4x_ft4x_max-size.yaml --input desk.jpg --output out.jpg --vocabulary lvis --opts MODEL.WEIGHTS models/Detic_LCOCOI21k_CLIP_SwinB_896b32_4x_ft4x_max-size.pth

If setup correctly, the output should look like:

The same model can run with other vocabularies (COCO, OpenImages, or Objects365), or acustom vocabulary. For example:

python demo.py --config-file configs/Detic_LCOCOI21k_CLIP_SwinB_896b32_4x_ft4x_max-size.yaml --input desk.jpg --output out2.jpg --vocabulary custom --custom_vocabulary headphone,webcam,paper,coffe --confidence-threshold 0.3 --opts MODEL.WEIGHTS models/Detic_LCOCOI21k_CLIP_SwinB_896b32_4x_ft4x_max-size.pth

The output should look like:

Note thatheadphone,paper andcoffe (typo intended) arenot LVIS classes. Despite the misspelled class name, our detector can produce a reasonable detection forcoffe.

Please firstprepare datasets, then check ourMODEL ZOO to reproduce results in our paper. We highlight key results below:

• Open-vocabulary LVIS

  	mask mAP	mask mAP_novel
  Box-Supervised	30.2	16.4
  Detic	32.4	24.9

• Standard LVIS

  	Detector/ Backbone	mask mAP	mask mAP_rare
  Box-Supervised	CenterNet2-ResNet50	31.5	25.6
  Detic	CenterNet2-ResNet50	33.2	29.7
  Box-Supervised	CenterNet2-SwinB	40.7	35.9
  Detic	CenterNet2-SwinB	41.7	41.7

  	Detector/ Backbone	box mAP	box mAP_rare
  Box-Supervised	DeformableDETR-ResNet50	31.7	21.4
  Detic	DeformableDETR-ResNet50	32.5	26.2

• Cross-dataset generalization

  	Backbone	Objects365 box mAP	OpenImages box mAP50
  Box-Supervised	SwinB	19.1	46.2
  Detic	SwinB	21.4	55.2

The majority of Detic is licensed under theApache 2.0 license, however portions of the project are available under separate license terms: SWIN-Transformer, CLIP, and TensorFlow Object Detection API are licensed under the MIT license; UniDet is licensed under the Apache 2.0 license; and the LVIS API is licensed under acustom license. If you later add other third party code, please keep this license info updated, and please let us know if that component is licensed under something other than CC-BY-NC, MIT, or CC0

Detic's wide range of detection capabilities may introduce similar challenges to many other visual recognition and open-set recognition methods.As the user can define arbitrary detection classes, class design and semantics may impact the model output.

If you find this project useful for your research, please use the following BibTeX entry.

@inproceedings{zhou2022detecting,  title={Detecting Twenty-thousand Classes using Image-level Supervision},  author={Zhou, Xingyi and Girdhar, Rohit and Joulin, Armand and Kr{\"a}henb{\"u}hl, Philipp and Misra, Ishan},  booktitle={ECCV},  year={2022}}