FLUOROSCOPIC POSE ESTIMATION

摘要

Methods and systems for registering three-dimensional (3D) CT image data with two-dimensional (2D) fluoroscopic image data using a plurality of markers are disclosed. In the methods and systems, a lateral angle and a cranial angle are searched for and a roll angle is computed. 3D translation coordinates are also computed. The calculated roll angle and 3D translation coordinates are computed for a predetermined number of times successively. After performing the calculations, the 3D CT image data is overlaid on the 2D fluoroscopic image data based on the lateral angle, the cranial angle, the roll angle, and the 3D translation coordinates.

主权项

1. A method for registering three-dimensional (3D) CT image data with two-dimensional (2D) fluoroscopic image data using a plurality of markers, the method comprising:
searching for a lateral angle and a cranial angle; moving a 3D mass center of a marker to a half segment between a source and a 2D mass center of the marker; computing a roll angle; computing a 3D translation coordinates; computing the roll angle and the 3D translation coordinates for a predetermined number of times successively; and overlaying the 3D CT image data on the 2D fluoroscopic image data based on the lateral angle, the cranial angle, the roll angle, and the 3D translation coordinates.