Lesion Net -- Skin Lesion Segmentation Using Coordinate Convolution and Deep Residual Units

• URL: http://arxiv.org/abs/2012.14249v1
• Date: Mon, 28 Dec 2020 14:43:04 GMT
• Title: Lesion Net -- Skin Lesion Segmentation Using Coordinate Convolution and Deep Residual Units
• Authors: Sabari Nathan, Priya Kansal
• Abstract summary: The accuracy of segmenting melanomas skin lesions is quite a challenging task due to less data for training, irregular shapes, unclear boundaries, and different skin colors. Our proposed approach helps in improving the accuracy of skin lesion segmentation. The results show that the proposed model either outperform or at par with the existing skin lesion segmentation methods.
• Score: 18.908448254745473
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Skin lesions segmentation is an important step in the process of automated diagnosis of the skin melanoma. However, the accuracy of segmenting melanomas skin lesions is quite a challenging task due to less data for training, irregular shapes, unclear boundaries, and different skin colors. Our proposed approach helps in improving the accuracy of skin lesion segmentation. Firstly, we have introduced the coordinate convolutional layer before passing the input image into the encoder. This layer helps the network to decide on the features related to translation invariance which further improves the generalization capacity of the model. Secondly, we have leveraged the properties of deep residual units along with the convolutional layers. At last, instead of using only cross-entropy or Dice-loss, we have combined the two-loss functions to optimize the training metrics which helps in converging the loss more quickly and smoothly. After training and validating the proposed model on ISIC 2018 (60% as train set + 20% as validation set), we tested the robustness of our trained model on various other datasets like ISIC 2018 (20% as test-set) ISIC 2017, 2016 and PH2 dataset. The results show that the proposed model either outperform or at par with the existing skin lesion segmentation methods.

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