Chinese Journal of Liquid Crystals and Displays, Volume. 40, Issue 3, 516(2025)

Few-shot wildlife detection based on multi-scale context extraction

Ke LIU1,2, Shanling LIN1,2, Xinyu SHI1,2, Jianpu LIN1,2, Shanhong LÜ1,2, Zhixian LIN1,2、*, and Tailiang GUO2
Author Affiliations
  • 1School of Advanced Manufacturing, Fuzhou University,Quanzhou 362251, China
  • 2Fujian Science and Technology Innovation Laboratory for Photoelectric Information, Fuzhou 350116, China
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    In order to solve the problems of difficulties and low detection accuracy caused by the small sample size and variable target scale of wildlife datasets, a few-shot wildlife detection (MS-FSWD) algorithm based on multi-scale context extraction was proposed. Firstly, the multi-scale context extraction module was used to enhance the perception ability of the model for wildlife at different scales and improve the detection performance. Secondly, Res2Net was introduced as a strong classification network of the prototype calibration module to correct the class scores output by the classifier. Then, the shuffle attention mechanism was added to the RPN to enhance the feature map of the target region and weaken the background information.Finally, using the Balanced L1 Loss as the localization loss function improves the target positioning performance.Experimental results show that compared with the DeFRCN algorithm, MS-FSWD improves the novel class AP50 by 9.9% and 6.6% respectively in the 1-shot and 3-shot detection tasks on the few-shot wildlife dataset FSWA. On the public dataset PASCAL VOC, MS-FSWD is increased by up to 12.6%. Compared with the VFA algorithm, in the 10-shot task of the PASCAL VOC dataset Novel Set 3, the novel class AP50 is increased by 3.3%.

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    Ke LIU, Shanling LIN, Xinyu SHI, Jianpu LIN, Shanhong LÜ, Zhixian LIN, Tailiang GUO. Few-shot wildlife detection based on multi-scale context extraction[J]. Chinese Journal of Liquid Crystals and Displays, 2025, 40(3): 516

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    Paper Information

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    Received: Jun. 11, 2024

    Accepted: --

    Published Online: Apr. 27, 2025

    The Author Email: Zhixian LIN (lzx2005000@163.com)

    DOI:10.37188/CJLCD.2024-0168

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