Multi-Stage Adaptive Spline Autofocus (MASA) with a Learned Metric for Deformable Motion Compensation in Interventional Cone-Beam CT.

H Huang,J H Siewerdsen, A Lu, Y Hu,W Zbijewski,M Unberath,C R Weiss,A Sisniega

Proceedings of SPIE--the International Society for Optical Engineering（2023）

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摘要

A new autofocus framework, MASA, was developed including a novel multi-stage technique for adaptive temporal sampling of the motion trajectory in combination with fully differentiable deep autofocus metrics. This novel adaptive sampling approach is a crucial step for application of deformable motion compensation to complex temporal motion trajectories.

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