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New starting point registration method for tagged MRI tongue motion estimation

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arxiv 2302.04330 v1 pith:QLBWXYMA submitted 2023-02-08 eess.IV

New starting point registration method for tagged MRI tongue motion estimation

classification eess.IV
keywords methodmotionregistrationtonguejumpingavoidestimatesestimation
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Accurate tongue motion estimation is essential for tongue function evaluation. The harmonic phase processing (HARP) method and the phase vector incompressible registration algorithm (PVIRA) based on HARP can generate motion estimates from tagged MRI images, but they suffer from tag jumping due to large motions. This paper proposes a new registration method by combining the stationary velocity fields produced by PVIRA between successive time frames as a new initialization of the final registration stage to avoid tag jumping. The experiment results demonstrate the proposed method can avoid tag jumping and outperform the existing methods on tongue motion estimates.

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