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Thereby, correct classification of WBCs is crucial. Unfortunately, the manual microscopic evaluation is complicated, time-consuming, and subjective, so its statistical reliability becomes limited. Hence, the automatic and accurate identification of WBCs is of great benefit. However, the similarity between WBC samples and the imbalance and insufficiency of samples in the field of medical computer vision bring challenges to intelligent and accurate classification of WBCs. To tackle these challenges, this study proposes a deep learning framework by coupling the pre-trained ResNet and DenseNet with SCAM (spatial and channel attention module) for accurately classifying WBCs.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Results<\/jats:title>\n                <jats:p>In the proposed network, ResNet and DenseNet enables information reusage and new information exploration, respectively, which are both important and compatible for learning good representations. Meanwhile, the SCAM module sequentially infers attention maps from two separate dimensions of space and channel to emphasize important information or suppress unnecessary information, further enhancing the representation power of our model for WBCs to overcome the limitation of sample similarity. Moreover, the data augmentation and transfer learning techniques are used to handle the data of imbalance and insufficiency. In addition, the mixup approach is adopted for modeling the vicinity relation across training samples of different categories to increase the generalizability of the model. By comparing with five representative networks on our developed LDWBC dataset and the publicly available LISC, BCCD, and Raabin WBC datasets, our model achieves the best overall performance. We also implement the occlusion testing by the gradient-weighted class activation mapping (Grad-CAM) algorithm to improve the interpretability of our model.<\/jats:p>\n              <\/jats:sec><jats:sec>\n                <jats:title>Conclusion<\/jats:title>\n                <jats:p>The proposed method has great potential for application in intelligent and accurate classification of WBCs.<\/jats:p>\n              <\/jats:sec>","DOI":"10.1186\/s12859-022-04824-6","type":"journal-article","created":{"date-parts":[[2022,7,15]],"date-time":"2022-07-15T13:05:14Z","timestamp":1657890314000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":65,"title":["Accurate classification of white blood cells by coupling pre-trained ResNet and DenseNet with SCAM mechanism"],"prefix":"10.1186","volume":"23","author":[{"given":"Hua","family":"Chen","sequence":"first","affiliation":[]},{"given":"Juan","family":"Liu","sequence":"additional","affiliation":[]},{"given":"Chunbing","family":"Hua","sequence":"additional","affiliation":[]},{"given":"Jing","family":"Feng","sequence":"additional","affiliation":[]},{"given":"Baochuan","family":"Pang","sequence":"additional","affiliation":[]},{"given":"Dehua","family":"Cao","sequence":"additional","affiliation":[]},{"given":"Cheng","family":"Li","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2022,7,15]]},"reference":[{"key":"4824_CR1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1155\/2020\/6490479","volume":"2020","author":"K Almezhghwi","year":"2020","unstructured":"Almezhghwi K, Serte S. 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All participants obtain the informed consent.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"282"}}