Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Object Detection Made Simpler by Eliminating Heuristic NMS   We show a simple NMS-free, end-to-end object detection framework, of which
the network is a minimal modification to a one-stage object detector such as
the FCOS detection model [Tian et al. 2019]. We attain on par or even improved
detection accuracy compared with the original one-stage detector. It performs
detection at almost the same inference speed, while being even simpler in that
now the post-processing NMS (non-maximum suppression) is eliminated during
inference. If the network is capable of identifying only one positive sample
for prediction for each ground-truth object instance in an image, then NMS
would become unnecessary. This is made possible by attaching a compact PSS head
for automatic selection of the single positive sample for each instance (see
Fig. 1). As the learning objective involves both one-to-many and one-to-one
label assignments, there is a conflict in the labels of some training examples,
making the learning challenging. We show that by employing a stop-gradient
operation, we can successfully tackle this issue and train the detector. On the
COCO dataset, our simple design achieves superior performance compared to both
the FCOS baseline detector with NMS post-processing and the recent end-to-end
NMS-free detectors. Our extensive ablation studies justify the rationale of the
design choices.

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The categories of this paper are: hep-th
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The categories of this paper are: bayes-an
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The categories of this paper are: astro-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: chao-dyn
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: physics
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The categories of this paper are: hep-ph
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas