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SPOT: Self-Training with Patch-Order Permutation for Object-Centric Learning with Autoregressive Transformers

1 Dec 2023CVPR 2024 1arXiv:2312.00648archive 2025-07-28

Ioannis Kakogeorgiou, Spyros Gidaris, Konstantinos Karantzalos, Nikos Komodakis

Unsupervised object-centric learning aims to decompose scenes into interpretable object entities, termed slots. Slot-based auto-encoders stand out as a prominent method for this task. Within them, crucial aspects include guiding the encoder to generate object-specific slots and ensuring the decoder utilizes them during reconstruction. This work introduces two novel techniques, (i) an attention-based self-training approach, which distills superior slot-based attention masks from the decoder to the encoder, enhancing object segmentation, and (ii) an innovative patch-order permutation strategy for autoregressive transformers that strengthens the role of slot vectors in reconstruction. The effectiveness of these strategies is showcased experimentally. The combined approach significantly surpasses prior slot-based autoencoder methods in unsupervised object segmentation, especially with complex real-world images. We provide the implementation code at https://github.com/gkakogeorgiou/spot .

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build_mlp gkakogeorgiou/spot/mlp.py official repository ran · our draft was wrong MIT (permissive) · cb595df1d5262ca6 · report
gumbel_max gkakogeorgiou/spot/utils_spot.py official repository ran fingerprinted MIT (permissive) · 373a062444a76c60 · report
log_prob_gaussian gkakogeorgiou/spot/utils_spot.py official repository ran fingerprinted MIT (permissive) · 3de25e2b8c3962dd · report
resize_patches_to_image gkakogeorgiou/spot/ocl_metrics.py official repository ran MIT (permissive) · 93287a818bc26d8d · report
tensor_to_one_hot gkakogeorgiou/spot/ocl_metrics.py official repository ran MIT (permissive) · c7f9a5b82487aac3 · report
unsupervised_mask_iou gkakogeorgiou/spot/ocl_metrics.py official repository ran MIT (permissive) · 772ec2a331b23943 · report
gumbel_softmax gkakogeorgiou/spot/utils_spot.py official repository unverified MIT (permissive) · 94c911439007d22c · report

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DecoderObjectSegmentationSemantic SegmentationUnsupervised Object Segmentation

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