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  • Issue No. 8 - Aug.
  • Abstract - Stacked Autoencoders for Unsupervised Feature Learning and Multiple Organ Detection in a Pilot Study Using 4D Patient Data
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Stacked Autoencoders for Unsupervised Feature Learning and Multiple Organ Detection in a Pilot Study Using 4D Patient Data
Aug. 2013 (vol. 35 no. 8)
pp. 1930-1943
Hoo-Chang Shin, Inst. of Cancer Res. & R. Marsden, NHS Found. Trust, Sutton, UK
M. R. Orton, Inst. of Cancer Res. & R. Marsden, NHS Found. Trust, Sutton, UK
D. J. Collins, Inst. of Cancer Res. & R. Marsden, NHS Found. Trust, Sutton, UK
S. J. Doran, Inst. of Cancer Res. & R. Marsden, NHS Found. Trust, Sutton, UK
M. O. Leach, Inst. of Cancer Res. & R. Marsden, NHS Found. Trust, Sutton, UK
Medical image analysis remains a challenging application area for artificial intelligence. When applying machine learning, obtaining ground-truth labels for supervised learning is more difficult than in many more common applications of machine learning. This is especially so for datasets with abnormalities, as tissue types and the shapes of the organs in these datasets differ widely. However, organ detection in such an abnormal dataset may have many promising potential real-world applications, such as automatic diagnosis, automated radiotherapy planning, and medical image retrieval, where new multimodal medical images provide more information about the imaged tissues for diagnosis. Here, we test the application of deep learning methods to organ identification in magnetic resonance medical images, with visual and temporal hierarchical features learned to categorize object classes from an unlabeled multimodal DCE-MRI dataset so that only a weakly supervised training is required for a classifier. A probabilistic patch-based method was employed for multiple organ detection, with the features learned from the deep learning model. This shows the potential of the deep learning model for application to medical images, despite the difficulty of obtaining libraries of correctly labeled training datasets and despite the intrinsic abnormalities present in patient datasets.
Index Terms:
Liver,Training,Machine learning,Medical diagnostic imaging,Visualization,Feature extraction,biomedical image processing,Edge and feature detection,object recognition,pixel classification,machine learning
Citation:
Hoo-Chang Shin, M. R. Orton, D. J. Collins, S. J. Doran, M. O. Leach, "Stacked Autoencoders for Unsupervised Feature Learning and Multiple Organ Detection in a Pilot Study Using 4D Patient Data," IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 35, no. 8, pp. 1930-1943, Aug. 2013, doi:10.1109/TPAMI.2012.277
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