Deep Learning-Based High-Frequency Ultrasound Skin Image Classification with Multicriteria Model Evaluation.
Deep Learning-Based High-Frequency Ultrasound Skin Image Classification with Multicriteria Model Evaluation.
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DOI:
10.3390/s21175846
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发表时间:
2021-08-30
期刊:
影响因子:
--
通讯作者:
Słowińska M
中科院分区:
文献类型:
--
作者:
Czajkowska J;Badura P;Korzekwa S;Płatkowska-Szczerek A;Słowińska M
This study presents the first application of convolutional neural networks to high-frequency ultrasound skin image classification. This type of imaging opens up new opportunities in dermatology, showing inflammatory diseases such as atopic dermatitis, psoriasis, or skin lesions. We collected a database of 631 images with healthy skin and different skin pathologies to train and assess all stages of the methodology. The proposed framework starts with the segmentation of the epidermal layer using a DeepLab v3+ model with a pre-trained Xception backbone. We employ transfer learning to train the segmentation model for two purposes: to extract the region of interest for classification and to prepare the skin layer map for classification confidence estimation. For classification, we train five models in different input data modes and data augmentation setups. We also introduce a classification confidence level to evaluate the deep model’s reliability. The measure combines our skin layer map with the heatmap produced by the Grad-CAM technique designed to indicate image regions used by the deep model to make a classification decision. Moreover, we propose a multicriteria model evaluation measure to select the optimal model in terms of classification accuracy, confidence, and test dataset size. The experiments described in the paper show that the DenseNet-201 model fed with the extracted region of interest produces the most reliable and accurate results.
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影响因子:
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通讯作者:
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DOI:
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