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Segment scene unsupervised by clustering pseudo labels from self-supervised models with U2Seg

Segment scene unsupervised by clustering pseudo labels from self-supervised models with U2Seg


Unsupervised Universal Image Segmentation



... unsupervised image segmentation ... eliminate the need for dense manually-annotated segmentation masks; current models separately handle either semantic segmentation (e.g., STEGO) or class-agnostic instance segmentation (e.g., CutLER), but not both (i.e., panoptic segmentation).


... propose an Unsupervised Universal Segmentation model (U2Seg) adept at performing various image segmentation tasks -- instance, semantic and panoptic -- using a novel unified framework.


U2Seg generates pseudo semantic labels for these segmentation tasks via leveraging self-supervised models followed by clustering; each cluster represents different semantic and/or instance membership of pixels.


... then self-train the model on these pseudo semantic labels, yielding substantial performance gains over specialized methods tailored to each task


... U2Seg is also a strong pretrained model for few-shot segmentation ... when trained on ... only 1% COCO labels ...



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