Abstract
Cross-modality image synthesis has recently gained significant interest in the medical imaging community. In this paper, we propose a novel architecture called location-sensitive deep network (LSDN) for synthesizing images across domains. Our network integrates intensity feature from image voxels and spatial information in a principled manner. Specifically, LSDN models hidden nodes as products of features and spatial responses. We then propose a novel method, called ShrinkConnect, for reducing the computations of LSDN without sacrificing synthesis accuracy. ShrinkConnect enforces simultaneous sparsity to find a compact set of functions that accurately approximates the responses of all hidden nodes. Experimental results demonstrate that LSDN+ShrinkConnect outperforms the state of the art in cross-domain synthesis of MRI brain scans by a significant margin. Our approach is also computationally efficient, e.g. 26× faster than other sparse representation based methods.
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Van Nguyen, H., Zhou, K., Vemulapalli, R. (2015). Cross-Domain Synthesis of Medical Images Using Efficient Location-Sensitive Deep Network. In: Navab, N., Hornegger, J., Wells, W., Frangi, A. (eds) Medical Image Computing and Computer-Assisted Intervention -- MICCAI 2015. MICCAI 2015. Lecture Notes in Computer Science(), vol 9349. Springer, Cham. https://doi.org/10.1007/978-3-319-24553-9_83
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DOI: https://doi.org/10.1007/978-3-319-24553-9_83
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