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YOLOv5-VF-W3: A novel cattle body detection approach for precision livestock farming
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作者 Wangli Hao Chao Ren +2 位作者 Meng Han Fuzhong Li Zhenyu Liu 《International Journal of Agricultural and Biological Engineering》 2025年第2期269-277,共9页
Accurate cattle body detection can significantly enhance the efficiency and quality of animal husbandry production.Traditional manual observation approaches are not only inefficient but also lack objectivity,while com... Accurate cattle body detection can significantly enhance the efficiency and quality of animal husbandry production.Traditional manual observation approaches are not only inefficient but also lack objectivity,while computer vision-based methods demand prolonged training periods and present challenges in implementation.To address these issues,this paper develops a novel precise cattle body detection solution,namely YOLOv5-VF-W3.By introducing the Varifocal loss,the YOLOv5-VF-W3 model can handle imbalanced samples and focus more attention on difficult-to-recognize instances.Additionally,the introduction of the WIoUv3 loss function provides the model with a wise gradient gain allocation strategy.This strategy reduces the competitiveness of high-quality anchor boxes while mitigating harmful gradients produced by low-quality anchor boxes,thereby emphasizing anchor boxes of ordinary quality.Through these enhancements,the YOLOv5-VF-W3 model can accurately detect cattle bodies,improving the efficiency and quality of animal husbandry production.Numerous experimental results have demonstrated that the proposed YOLOv5-VF-W3 model achieves superior cattle body detection results in both quantitative and qualitative evaluation criteria.Specifically,the YOLOv5-VF-W3 model achieves an mAP of 95.2%in cattle body detection,with individual cattle detection,leg detection,and head detection reaching 95.3%,94.8%,and 95.4%,respectively.Furthermore,in complex scenarios,especially when dealing with small targets and occlusions,the model can accurately and efficiently detect individual cattle and key body parts.This brings new opportunities for the development of precision livestock farming. 展开更多
关键词 cattle body detection varifocal loss key body parts WIoUv3 loss
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Detecting Factor Ⅺ Deficiency in Holstein Cattle Using PCR Analysis
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作者 张科 王占彬 王清义 《Agricultural Science & Technology》 CAS 2010年第5期109-111,共3页
[Objective] This study established a method to detect Factor Ⅺ by polymerase chain reaction analysis.[Method]A pair of primers was designed and synthesized according to sequences of FⅪ gene in Holstein calves,publis... [Objective] This study established a method to detect Factor Ⅺ by polymerase chain reaction analysis.[Method]A pair of primers was designed and synthesized according to sequences of FⅪ gene in Holstein calves,published in Genbank. Polymerase chain reaction was used to analyze FⅪ deficiency of 576 Holstein calves in Henan,and the result was verified by DNA sequencing. [Result] We detect 576 cows,which include two carriers and one F Ⅺ deficiency,and the result was consistent with the DNA sequencing. The frequency of the FⅪ mutant allele was 0.3%,the carrier was 0.3%,the prevalence was 0.2%.[Conclusion]A method detecting FⅪ by polymerase chain reaction analysis was established. This method is not only simple and convenient,but also has a high accuracy and low cost,which is more suitable for large-scale FⅪ investigation. 展开更多
关键词 Holstein cattle Factor deficiency PCR detection
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A systematic review of machine learning techniques for cattle identification:Datasets,methods and future directions 被引量:3
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作者 Md Ekramul Hossain Muhammad Ashad Kabir +3 位作者 Lihong Zheng Dave L.Swain Shawn McGrath Jonathan Medway 《Artificial Intelligence in Agriculture》 2022年第1期138-155,共18页
Increased biosecurity and food safety requirements may increase demand for efficient traceability and identification systems of livestock in the supply chain.The advanced technologies of machine learning and computer ... Increased biosecurity and food safety requirements may increase demand for efficient traceability and identification systems of livestock in the supply chain.The advanced technologies of machine learning and computer vision have been applied in precision livestock management,including critical disease detection,vaccination,production management,tracking,and health monitoring.This paper offers a systematic literature review(SLR)of vision-based cattle identification.More specifically,this SLR is to identify and analyse the research related to cattle identification using Machine Learning(ML)and Deep Learning(DL).This study retrieved 731 studies from four online scholarly databases.Fifty-five articles were subsequently selected and investigated in depth.For the two main applications of cattle detection and cattle identification,all the ML based papers only solve cattle identification problems.However,both detection and identification problems were studied in the DL based papers.Based on our survey report,the most used ML models for cattle identification were support vector machine(SVM),k-nearest neighbour(KNN),and artificial neural network(ANN).Convolutional neural network(CNN),residual network(ResNet),Inception,You Only Look Once(YOLO),and Faster R-CNN were popular DL models in the selected papers.Among these papers,the most distinguishing features were the muzzle prints and coat patterns of cattle.Local binary pattern(LBP),speeded up robust features(SURF),scaleinvariant feature transform(SIFT),and Inception or CNN were identified as the most used feature extraction methods.This paper details important factors to consider when choosing a technique or method.We also identified major challenges in cattle identification.There are few publicly available datasets,and the quality of those datasets are affected by the wild environment and movement while collecting data.The processing time is a critical factor for a real-time cattle identification system.Finally,a recommendation is given that more publicly available benchmark datasets will improve research progress in the future. 展开更多
关键词 cattle identification cattle detection Machine learning Deep learning cattle farming
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