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基于改進YOLO v8的牛只行為識別與跟蹤方法
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河北省省級科技計劃項目(19220119D)


Method for Cattle Behavior Recognition and Tracking Based on Improved YOLO v8
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    摘要:

    隨著我國畜牧業(yè)的快速發(fā)展,牛只養(yǎng)殖由分散性養(yǎng)殖逐漸向精準化養(yǎng)殖轉(zhuǎn)變,。針對分散養(yǎng)殖中農(nóng)戶無法對每頭牛只健康狀況給予足夠關(guān)注的問題,,通過分析牛只行為模式結(jié)合視覺方向特征,設(shè)計了綜合管理方法來準確識別和跟蹤牛只行為,。首先,采用改進YOLO v8算法對牛只進行目標監(jiān)測,,其中,,在Backbone和Neck端使用C2f-faster結(jié)構(gòu),增強模型特征提取能力,;引入上采樣算子CARAFE,,拓寬感受視野進行數(shù)據(jù)特征融合;針對牛只幼仔檢測加入BiFormer注意力機制,,以識別牛只小面積特征,;更換動態(tài)目標檢測頭DyHead,融合尺度,、空間和任務(wù)感知,;然后,,使用Focal SIoU函數(shù),解決正負樣本分配不均衡和CIoU局限性的問題,。最后,,將YOLO v8檢測到的行為類別信息引入BoTSORT算法中,實現(xiàn)在復(fù)雜場景下牛只多目標行為識別跟蹤,。實驗結(jié)果表明,,提出的FBCD-YOLO v8n(FasterNet、BiFormer,、CARAFE,、DyHead)模型在牛只行為數(shù)據(jù)集上,相比較YOLO v5n,、YOLO v7tiny和原YOLO v8n模型的[email protected]分別提升3.4,、3.1、2.4個百分點,,尤其牛只回舔行為識別平均精度提高7.4個百分點,。跟蹤方面,BoTSORT算法的MOTA為96.1%,,MOTP為78.6%,,IDF1為98.0%,HOTA為78.9%,;與ByteTrack,、StrongSORT算法比,MOTA和IDF1顯著提升,,跟蹤效果良好,。研究表明,在牛舍養(yǎng)殖環(huán)境下,,本研究構(gòu)建的多目標牛只行為識別跟蹤系統(tǒng),,可有效幫助農(nóng)戶監(jiān)測牛只行為,為牛只的自動化精準養(yǎng)殖提供技術(shù)支持,。

    Abstract:

    With the rapid development of animal husbandry in China, the transition from farmers-dispersed cattle breeding to precision husbandry has become increasingly important. Efficient management of breeding, behavior monitoring, disease prevention, and health assurance pose significant challenges. Traditionally, farmers have struggled to provide adequate attention to each cow. To address these challenges, a comprehensive approach was developed that accurately identified and tracked cattle behavior by analyzing behavior patterns and visual characteristics. Firstly, the improved YOLO v8 algorithm was employed for cattle target detection. The model’s feature extraction capabilities were enhanced by incorporating the C2f-faster structure into the Backbone and Neck. The upsampling operator CARAFE was introduced to expand the perception field for data feature fusion. To identify small area characteristics of young cattle, the BiFormer attention mechanism was integrated into the detection process, replacing the dynamic target detection head DyHead. This allowed to effectively integrate scale, space, and task perception. Furthermore, the issue of the uneven distribution of positive and negative samples and the limitations of CIoU was addressed by utilizing the Focal SIoU function. Finally, the behavior category information detected by YOLO v8 was incorporated into the BoTSORT algorithm to enable multi-target behavior recognition and tracking in complicated situations. The experiments demonstrated significant performance improvements. The proposed FBCD-YOLO v8n model outperformed both the YOLO v5n, YOLO v7tiny, and the original YOLO v8n models, with an increase of 3.4 percentage points, 3.1 percentage points, and 2.4 percentage points in [email protected], respectively, on the bovine behavior dataset. Notably, the accuracy of bovine back licking behavior recognition was increased by 7.4 percentage points. Regarding tracking, the BoTSORT algorithm achieved an MOTA of 96.1%, MOTP of 78.6%, HOTA of 78.9%, and IDF1 of 98.0%. Compared with ByteTrack and StrongSORT algorithms, the proposed method of MOTA and IDF1 scores demonstrated significant tracking improvements. This research demonstrated that the multi-objective cattle behavior recognition and tracking system developed can provide effective assistance to farmers in monitoring cattle behavior within the cattle barn environment. It offered crucial technical support for automated and precise cattle breeding.

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付辰伏,任力生,王芳.基于改進YOLO v8的牛只行為識別與跟蹤方法[J].農(nóng)業(yè)機械學(xué)報,2024,55(5):290-301. FU Chenfu, REN Lisheng, WANG Fang. Method for Cattle Behavior Recognition and Tracking Based on Improved YOLO v8[J]. Transactions of the Chinese Society for Agricultural Machinery,2024,55(5):290-301.

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  • 收稿日期:2023-09-18
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  • 在線發(fā)布日期: 2023-11-08
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