Developing and Evaluating Poultry Preening Behavior Detectors via Mask Region-Based Convolutional Neural Network

Animals

Xue Hui¹  Guoming Li²  Yang Zhao³  Fei Lin⁴ 

[1] College of Energy and Intelligent Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450011, China;Department of Agricultural and Biological Engineering, Mississippi State University, Starkville, MS 39762, USA;Department of Animal Science, The University of Tennessee, Knoxville, TN 37996, USA;Department of Electrical and Computer Engineering, Mississippi State University, Starkville, MS 39762, USA;

关键词: poultry;    cage-free;    preening behavior;    mask R-CNN;    residual network;   

DOI  :  10.3390/ani10101762

来源: DOAJ

【 摘 要 】

There is a lack of precision tools for automated poultry preening monitoring. The objective of this study was to develop poultry preening behavior detectors using mask R-CNN. Thirty 38-week brown hens were kept in an experimental pen. A surveillance system was installed above the pen to record images for developing the behavior detectors. The results show that the mask R-CNN had 87.2 ± 1.0% MIOU, 85.1 ± 2.8% precision, 88.1 ± 3.1% recall, 95.8 ± 1.0% specificity, 94.2 ± 0.6% accuracy, 86.5 ± 1.3% F1 score, 84.3 ± 2.8% average precision and 380.1 ± 13.6 ms·image⁻¹ processing speed. The six ResNets (ResNet18-ResNet1000) had disadvantages and advantages in different aspects of detection performance. Training parts of the complex network and transferring some pre-trained weights from the detectors pre-trained in other datasets can save training time but did not compromise detection performance and various datasets can result in different transfer learning efficiencies. Resizing and padding input images to different sizes did not affect detection performance of the detectors. The detectors performed similarly within 100–500 region proposals. Temporal and spatial preening behaviors of individual hens were characterized using the trained detector. In sum, the mask R-CNN preening behavior detector could be a useful tool to automatically identify preening behaviors of individual hens in group settings.

【 授权许可】

Unknown