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Han Liu

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Proceedings Article | 27 March 2024 Paper

Fish image classification based on MobileNet

Ziming Miao, Han Liu, Guangming Xian, Junhong Xie

Proceedings Volume 13105, 1310511 (2024) https://doi.org/10.1117/12.3026347

KEYWORDS: Convolution, Image classification, Machine learning, Feature extraction, Feature fusion, Deep learning

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Fine-grained image classification aims to accurately categorize subclasses within a particular category. Due to the small inter-class differences and large intra-class variations, fine-grained image classification has been a challenging research topic in the field of computer vision and holds significant research value. Existing neural network-based algorithms suffer from the loss of fine-grained texture details during the training process and the inability to effectively fuse features extracted from different convolution layers of the backbone network. To address these issues, this paper proposes a fine-grained image classification method based on a lightweight feature extraction network with MobileNet v2 as the core, incorporating multi-scale feature fusion and attention mechanism. Considering that high-level and low-level features contain rich semantic and textural information, attention mechanisms are embedded into different scales to capture more diverse feature information. Experimental evaluations conducted on the publicly available fine-grained dataset, A Large Scale Fish Dataset, achieve a classification accuracy of 99.86%. The results demonstrate the superiority of the proposed method in fine-grained object classification.

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