MVA 2025 Small Multi-Object Tracking for Spotting Birds Challenge: Dataset, Methods, and Results
MVA 2025 Small Multi-Object Tracking for Spotting Birds Challenge: Dataset, Methods, and Results
Small Multi-Object Tracking (SMOT) is particularly challenging when targets occupy only a few dozen pixels, rendering detection and appearance-based association unreliable. Building on the success of the MVA2023 SOD4SB challenge, this paper introduces the SMOT4SB challenge, which leverages temporal information to address limitations of single-frame detection. Our three main contributions are: (1) the SMOT4SB dataset, consisting of 211 UAV video sequences with 108,192 annotated frames under diverse real-world conditions, designed to capture motion entanglement where both camera and targets move freely in 3D; (2) SO-HOTA, a novel metric combining Dot Distance with HOTA to mitigate the sensitivity of IoU-based metrics to small displacements; and (3) a competitive MVA2025 challenge with 78 participants and 308 submissions, where the winning method achieved a 5.1x improvement over the baseline. This work lays a foundation for advancing SMOT in UAV scenarios with applications in bird strike avoidance, agriculture, fisheries, and ecological monitoring.
Yuki Kondo、Norimichi Ukita、Riku Kanayama、Yuki Yoshida、Takayuki Yamaguchi、Xiang Yu、Guang Liang、Xinyao Liu、Guan-Zhang Wang、Wei-Ta Chu、Bing-Cheng Chuang、Jia-Hua Lee、Pin-Tseng Kuo、I-Hsuan Chu、Yi-Shein Hsiao、Cheng-Han Wu、Po-Yi Wu、Jui-Chien Tsou、Hsuan-Chi Liu、Chun-Yi Lee、Yuan-Fu Yang、Kosuke Shigematsu、Asuka Shin、Ba Tran
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Yuki Kondo,Norimichi Ukita,Riku Kanayama,Yuki Yoshida,Takayuki Yamaguchi,Xiang Yu,Guang Liang,Xinyao Liu,Guan-Zhang Wang,Wei-Ta Chu,Bing-Cheng Chuang,Jia-Hua Lee,Pin-Tseng Kuo,I-Hsuan Chu,Yi-Shein Hsiao,Cheng-Han Wu,Po-Yi Wu,Jui-Chien Tsou,Hsuan-Chi Liu,Chun-Yi Lee,Yuan-Fu Yang,Kosuke Shigematsu,Asuka Shin,Ba Tran.MVA 2025 Small Multi-Object Tracking for Spotting Birds Challenge: Dataset, Methods, and Results[EB/OL].(2025-07-17)[2025-08-18].https://arxiv.org/abs/2507.12832.点此复制
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