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arXiv · 1904.03629

Adaptive NMS: Refining Pedestrian Detection in a Crowd

Songtao Liu·Di Huang·Yunhong Wang
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Abstract

Pedestrian detection in a crowd is a very challenging issue. This paper addresses this problem by a novel Non-Maximum Suppression (NMS) algorithm to better refine the bounding boxes given by detectors. The contributions are threefold: (1) we propose adaptive-NMS, which applies a dynamic suppression threshold to an instance, according to the target density; (2) we design an efficient subnetwork to learn density scores, which can be conveniently embedded into both the single-stage and two-stage detectors; and (3) we achieve state of the art results on the CityPersons and CrowdHuman benchmarks.

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Songtao Liu, Di Huang, Yunhong Wang. 2019-04-07. Adaptive NMS: Refining Pedestrian Detection in a Crowd. https://arxiv.org/abs/1904.03629

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