Journal
2015 IEEE 12TH INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING (ISBI)
Volume -, Issue -, Pages 777-780Publisher
IEEE
Keywords
Representation learning; denoising auto-encoders; optical coherence tomography; tissue characterization; in situ histology; cutaneous wounds
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Optical coherence tomography (OCT) relies on speckle image formation by coherent sensing of photons diffracted from a broadband laser source incident on tissues. Its nonionizing nature and tissue specific speckle appearance has leveraged rapid clinical translation for non-invasive highresolution in situ imaging of critical organs and tissue viz. coronary vessels, healing wounds, retina and choroid. However the stochastic nature of speckles introduces inter-and intra-observer reporting variability challenges. This paper proposes a deep neural network (DNN) based architecture for unsupervised learning of speckle representations in sweptsource OCT using denoising auto-encoders (DAE) and supervised learning of tissue specifics using stacked DAEs for histologically characterizing healthy skin and healing wounds with the aim of reducing clinical reporting variability. Performance of our deep learning based tissue characterization method in comparison with conventional histology of healthy and wounded mice skin strongly advocates its use for in situ histology of live tissues.
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