1. Automatic correction of the initial rotation angle error improves 3D reconstruction in endoscopic airway optical coherence tomography

    Automatic correction of the initial rotation angle error improves 3D reconstruction in endoscopic airway optical coherence tomography

    Endoscopic airway optical coherence tomography (OCT) is an advanced imaging modality capable of capturing the internal anatomy and geometry of the airway. Due to fiber-optic catheter bending and friction, the rotation speed of the endoscopic probe is usually non-uniform: at each B-scan image, the initial rotation angle of the probe is easily misaligned with that of the previous slices. During the pullback operation, this initial rotation angle error (IRAE) will be accumulated and will result in distortion and deformation of the reconstructed 3D airway structure. Previous attempts to correct this error were mainly manual corrections, which are time-consuming and suffered ...

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