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An Integrated Wildlife Recognition Model Based on Multi-Branch Aggregation and Squeeze-And-Excitation Network

1,2, 1,2, 1,2,* and 1,2
1
School of Technology, Beijing Forestry University, Beijing 100083, China
2
Key Lab of State Forestry and Grassland Administration for Forestry Equipment and Automation, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Appl. Sci. 2019, 9(14), 2794; https://doi.org/10.3390/app9142794
Received: 29 May 2019 / Revised: 25 June 2019 / Accepted: 9 July 2019 / Published: 12 July 2019
(This article belongs to the Special Issue Computer Vision and Pattern Recognition in the Era of Deep Learning)
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Abstract

Infrared camera trapping, which helps capture large volumes of wildlife images, is a widely-used, non-intrusive monitoring method in wildlife surveillance. This method can greatly reduce the workload of zoologists through automatic image identification. To achieve higher accuracy in wildlife recognition, the integrated model based on multi-branch aggregation and Squeeze-and-Excitation network is introduced. This model adopts multi-branch aggregation transformation to extract features, and uses Squeeze-and-Excitation block to adaptively recalibrate channel-wise feature responses based on explicit self-mapped interdependencies between channels. The efficacy of the integrated model is tested on two datasets: the Snapshot Serengeti dataset and our own dataset. From experimental results on the Snapshot Serengeti dataset, the integrated model applies to the recognition of 26 wildlife species, with the highest accuracies in Top-1 (when the correct class is the most probable class) and Top-5 (when the correct class is within the five most probable classes) at 95.3% and 98.8%, respectively. Compared with the ROI-CNN algorithm and ResNet (Deep Residual Network), on our own dataset, the integrated model, shows a maximum improvement of 4.4% in recognition accuracy. View Full-Text
Keywords: wildlife recognition; SE-ResNeXt; deep convolutional neural network wildlife recognition; SE-ResNeXt; deep convolutional neural network
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Xie, J.; Li, A.; Zhang, J.; Cheng, Z. An Integrated Wildlife Recognition Model Based on Multi-Branch Aggregation and Squeeze-And-Excitation Network. Appl. Sci. 2019, 9, 2794.

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