期刊
HORTICULTURE RESEARCH
卷 8, 期 1, 页码 -出版社
OXFORD UNIV PRESS INC
DOI: 10.1038/s41438-021-00553-8
关键词
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资金
- National Natural Science Foundation of China (NSFC) [U19A2061]
- Japan Science and Technology Agency (JST) CREST [JPMJCR1512]
- SICORP Program [JPMJSC16H2]
- aXis program [JPMJAS2018]
The paper introduced a domain adaptation method that can transfer an existing model trained from one domain to a new domain without extra manual labeling, potentially bridging the species gap in deep learning-based fruit detection.
Fruit detection and counting are essential tasks for horticulture research. With computer vision technology development, fruit detection techniques based on deep learning have been widely used in modern orchards. However, most deep learning-based fruit detection models are generated based on fully supervised approaches, which means a model trained with one domain species may not be transferred to another. There is always a need to recreate and label the relevant training dataset, but such a procedure is time-consuming and labor-intensive. This paper proposed a domain adaptation method that can transfer an existing model trained from one domain to a new domain without extra manual labeling. The method includes three main steps: transform the source fruit image (with labeled information) into the target fruit image (without labeled information) through the CycleGAN network; Automatically label the target fruit image by a pseudo-label process; Improve the labeling accuracy by a pseudo-label self-learning approach. Use a labeled orange image dataset as the source domain, unlabeled apple and tomato image dataset as the target domain, the performance of the proposed method from the perspective of fruit detection has been evaluated. Without manual labeling for target domain image, the mean average precision reached 87.5% for apple detection and 76.9% for tomato detection, which shows that the proposed method can potentially fill the species gap in deep learning-based fruit detection.
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