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Better object detection with semi-supervised training by using offline out-of-domain with Liu

Better object detection with semi-supervised training by using offline out-of-domain with Liu


Open-Set Semi-Supervised Object Detection

arXiv paper abstract https://arxiv.org/abs/2208.13722



Recent developments for Semi-Supervised Object Detection (SSOD) have shown the promise of leveraging unlabeled data to improve an object detector.


... methods have assumed that the unlabeled data does not contain out-of-distribution (OOD) classes, which is unrealistic with larger-scale unlabeled datasets.


... consider a more practical yet challenging problem, Open-Set Semi-Supervised Object Detection (OSSOD).


... find the existing SSOD method obtains a lower performance gain in open-set conditions, and this is caused by the semantic expansion, where the distracting OOD objects are mispredicted as in-distribution pseudo-labels for the semi-supervised training.


... found that leveraging an offline OOD detector based on a self-supervised vision transformer performs favorably against online OOD detectors due to its robustness to the interference of pseudo-labeling.


... framework effectively addresses the semantic expansion issue and shows consistent improvements on many OSSOD benchmarks, including large-scale COCO-OpenImages ...



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