2021, IEEE TIP, Point-Supervised Crowd Detection and Counting

In this article, we propose a novel self-training approach named Crowd-SDNet that enables a typical object detector trained only with point-level annotations (i.e., objects are labeled with points) to estimate both the center points and sizes of crowded objects. This is achieved by the proposed locally-uniform distribution assumption, the crowdedness-aware loss, the confidence and order-aware refinement scheme, and the effective decoding method, which promote the detector to generate accurate bounding boxes in a coarse-to-fine and end-to-end manner.

Article

Yi Wang, Junhui Hou, Xinyu Hou, and Lap-Pui Chau*. “A Self-Training Approach for Point-Supervised Object Detection and Counting in Crowds.” IEEE TIP 2021.

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