TY - GEN
T1 - Anatomical data augmentation for CNN based pixel-wise classification
AU - Ben-Cohen, Avi
AU - Klang, Eyal
AU - Amitai, Michal Marianne
AU - Goldberger, Jacob
AU - Greenspan, Hayit
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/5/23
Y1 - 2018/5/23
N2 - In this work we propose a method for anatomical data augmentation that is based on using slices of computed tomography (CT) examinations that are adjacent to labeled slices as another resource of labeled data for training the network. The extended labeled data is used to train a U-net network for a pixel-wise classification into different hepatic lesions and normal liver tissues. Our dataset contains CT examinations from 140 patients with 333 CT images annotated by an expert radiologist. We tested our approach and compared it to the conventional training process. Results indicate superiority of our method. Using the anatomical data augmentation we achieved an improvement of 3% in the success rate, 5% in the classification accuracy, and 4% in Dice.
AB - In this work we propose a method for anatomical data augmentation that is based on using slices of computed tomography (CT) examinations that are adjacent to labeled slices as another resource of labeled data for training the network. The extended labeled data is used to train a U-net network for a pixel-wise classification into different hepatic lesions and normal liver tissues. Our dataset contains CT examinations from 140 patients with 333 CT images annotated by an expert radiologist. We tested our approach and compared it to the conventional training process. Results indicate superiority of our method. Using the anatomical data augmentation we achieved an improvement of 3% in the success rate, 5% in the classification accuracy, and 4% in Dice.
KW - Augmentation
KW - CT
KW - Liver
KW - Semi-supervised learning
UR - https://www.scopus.com/pages/publications/85048123178
U2 - 10.1109/ISBI.2018.8363762
DO - 10.1109/ISBI.2018.8363762
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AN - SCOPUS:85048123178
T3 - Proceedings - International Symposium on Biomedical Imaging
SP - 1096
EP - 1099
BT - 2018 IEEE 15th International Symposium on Biomedical Imaging, ISBI 2018
PB - IEEE Computer Society
T2 - 15th IEEE International Symposium on Biomedical Imaging, ISBI 2018
Y2 - 4 April 2018 through 7 April 2018
ER -