Abstract
Object detection is one of the most significant tasks in recent computer vision and healthcare study, which also has been applied in many areas. Although some detection frameworks show good performance for some specific datasets, the ambiguity in feature levels of anchor-free detectors still limits the performance of both fully-supervised and cross-dataset settings. Hence, a digital twins end-to-end multi-branch object detection framework with feature level selection is presented in this work. First, a five-level feature pyramid is adopted with a set of detection heads to construct an anchor-free detection backbone. Then, a learning-based selection strategy is presented to help obtain better feature level selection performance. Experimental results on general object detection datasets show that our framework can achieve 39.2 average precision (AP) on the COCO dataset and 10.2 miss rate (MR) on the CityPersons dataset. Furthermore, experimental results on cross-dataset settings, including Cityscapes, Caltech, SIM 10k, KITTI datasets, have also proved the good generalization ability of our framework. Through the optimized models in digital twins, it is also been applied in a pneumonia detection dataset with 49.3 AP. In addition, a large number of comparisons with state-of-the-art works also verify the detection performance and real-time efficiency of the proposed framework.
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Acknowledgements
This work was supported in part by Key issues of vocational education in Jiangsu Province during the 13th five-year plan of Educational Science (B-b/2020/03/30), and in part by Special subject of Jiangsu Higher Education Society (2020NDKT047).
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Li, X. Real-time digital twins end-to-end multi-branch object detection with feature level selection for healthcare. J Real-Time Image Proc 19, 921–930 (2022). https://doi.org/10.1007/s11554-022-01233-z
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DOI: https://doi.org/10.1007/s11554-022-01233-z