Retrospective motion correction in MRI using disentangled embeddings

arXiv — cs.CV•Wednesday, November 12, 2025 at 5:00:00 AM

The recent publication on arXiv introduces a novel method for addressing motion artifacts in MRI scans, a common issue that can compromise diagnostic accuracy. Traditional motion correction techniques often struggle with generalization across different types of motion and body regions, limiting their effectiveness. The proposed solution leverages a hierarchical vector-quantized variational auto-encoder, which learns to disentangle motion patterns from the images. This model not only captures a diverse range of motion artifacts but also allows for corrections without the need for training on specific datasets. The results demonstrate robust performance across varying severities of motion, suggesting a significant improvement in the generalizability of machine learning-based MRI motion correction. This advancement is particularly relevant as it addresses a critical challenge in medical imaging, potentially leading to more accurate diagnoses and better patient outcomes.

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