Erschienen in:
04.08.2018 | Original Article
Deep learning-based detection of motion artifacts in probe-based confocal laser endomicroscopy images
verfasst von:
Marc Aubreville, Maike Stoeve, Nicolai Oetter, Miguel Goncalves, Christian Knipfer, Helmut Neumann, Christopher Bohr, Florian Stelzle, Andreas Maier
Erschienen in:
International Journal of Computer Assisted Radiology and Surgery
|
Ausgabe 1/2019
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Abstract
Purpose:
Probe-based confocal laser endomicroscopy (pCLE) is a subcellular in vivo imaging technique capable of producing images that enable diagnosis of malign structural modifications in epithelial tissue. Images acquired with pCLE are, however, often tainted by significant artifacts that impair diagnosis. This is especially detrimental for automated image analysis, which is why said images are often excluded from recognition pipelines.
Methods
We present an approach for the automatic detection of motion artifacts in pCLE images and apply this methodology to a data set of 15 thousand images of epithelial tissue acquired in the oral cavity and the vocal folds. The approach is based on transfer learning from intermediate endpoints within a pre-trained Inception v3 network with tailored preprocessing. For detection within the non-rectangular pCLE images, we perform pooling within the activation maps of the network and evaluate this at different network depths.
Results
We achieved area under the ROC curve values of 0.92 with the proposed method, compared to 0.80 for the best feature-based machine learning approach. Our overall accuracy with the presented approach is 94.8%.
Conclusion
Over traditional machine learning approaches with state-of-the-art features, we achieved significantly improved overall performance.