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- W4386065419 abstract "Detection-based methods have been viewed unfavorably in crowd analysis due to their poor performance in dense crowds. However, we argue that the potential of these methods has been underestimated, as they offer crucial information for crowd analysis that is often ignored. Specifically, the area size and confidence score of output proposals and bounding boxes provide insight into the scale and density of the crowd. To leverage these underutilized features, we propose Crowd Hat, a plug-and-play module that can be easily integrated with existing detection models. This module uses a mixed 2D-1D compression technique to refine the output features and obtain the spatial and numerical distribution of crowd-specific information. Based on these features, we further propose region-adaptive NMS thresholds and a decouple-then-align paradigm that address the major limitations of detection-based methods. Our extensive evaluations on various crowd analysis tasks, including crowd counting, localization, and detection, demonstrate the effectiveness of utilizing output features and the potential of detection-based methods in crowd analysis. Our code is available at https://github.com/wskingdom/Crowd-Hat." @default.
- W4386065419 created "2023-08-23" @default.
- W4386065419 creator A5049263522 @default.
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- W4386065419 date "2023-06-01" @default.
- W4386065419 modified "2023-09-27" @default.
- W4386065419 title "Boosting Detection in Crowd Analysis via Underutilized Output Features" @default.
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- W4386065419 doi "https://doi.org/10.1109/cvpr52729.2023.01498" @default.
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