Sparse Semi-DETR: Sparse Learnable Queries for Semi-Supervised Object Detection
<|reference_start|>Sparse Semi-DETR: Sparse Learnable Queries for Semi-Supervised Object Detection: In this paper, we address the limitations of the DETR-based semi-supervised object detection (SSOD) framework, particularly focusing on the challenges posed by the quality of object queries. In DETR-based SSOD, the one-to-one assignment strategy provides inaccurate pseudo-labels, while the one-to-many assignments strategy leads to overlapping predictions. These issues compromise training efficiency and degrade model performance, especially in detecting small or occluded objects. We introduce Sparse Semi-DETR, a novel transformer-based, end-to-end semi-supervised object detection solution to overcome these challenges. Sparse Semi-DETR incorporates a Query Refinement Module to enhance the quality of object queries, significantly improving detection capabilities for small and partially obscured objects. Additionally, we integrate a Reliable Pseudo-Label Filtering Module that selectively filters high-quality pseudo-labels, thereby enhancing detection accuracy and consistency. On the MS-COCO and Pascal VOC object detection benchmarks, Sparse Semi-DETR achieves a significant improvement over current state-of-the-art methods that highlight Sparse Semi-DETR's effectiveness in semi-supervised object detection, particularly in challenging scenarios involving small or partially obscured objects.<|reference_end|>
@article{shehzadi2024sparse,
    title={Sparse Semi-DETR: Sparse Learnable Queries for Semi-Supervised Object
  Detection},
    author={Tahira Shehzadi, Khurram Azeem Hashmi, Didier Stricker, Muhammad
  Zeshan Afzal},
    journal={arXiv preprint arXiv:2404.01819},
    year={2024},
    archivePrefix={arXiv},
    eprint={2404.01819},
    primaryClass={cs.CV}
}