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Abstract #1782

Feasibility of Super Resolution Speech RT-MRI using Deep Learning

Prakash Kumar1, Yongwan Lim1, and Krishna Nayak1
1Electrical and Computer Engineering, University of Southern California, Los Angeles, CA, United States

Super-resolution using deep learning has been successfully applied to camera imaging and recently to static and dynamic MRI. In this work, we apply super-resolution to the generation of high-resolution real-time MRI from low resolution counterparts in the context of human speech production. Reconstructions were performed using full (ground truth) and truncated zero-padded k-space (low resolution). The network, trained with a common 2D residual architecture, outperformed traditional interpolation based on PSNR, MSE, and SSIM metrics. Qualitatively, the network reconstructed most vocal tract segments including the velum and lips correctly but caused modest blurring of lip boundaries and the epiglottis.

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