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- W4328007642 abstract "It is a routine procedure to use Iterative Closest Point (ICP) algorithm to correct motion in medical imaging of the head. However, the basic assumption of ICP is the rigid body motion, and it is not strictly valid when there is non-rigid motion (facial expression). In this study, we propose a novel method to reduce the adverse effects of facial expressions on head motion estimation. First, we design a network named DFG-Net to generate a deformation field on the RGB domain and compute a confidence map. We then extend the original ICP by embedding the confidence map representing each point’s degree of non-rigid motion. Compared to other techniques, our proposed method eliminates the negative effects of facial expression while making the most of pose information. The experiments demonstrate that our approach reduces the position error by 19.23% and orientation error by 36.37% compared to the original ICP algorithm. They also show that our method is robust to variations of expressions." @default.
- W4328007642 created "2023-03-22" @default.
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- W4328007642 date "2023-01-01" @default.
- W4328007642 modified "2023-09-30" @default.
- W4328007642 title "A Deformation Field-Based Approach for Expression Processing in Head Motion Correction" @default.
- W4328007642 doi "https://doi.org/10.1109/access.2023.3258999" @default.
- W4328007642 hasPublicationYear "2023" @default.
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