Distortion correction and calibration of intra-operative spine X-ray images using a constrained DLT algorithm
Automatic method for distortion correction and calibration of intraoperative spine X-ray images. Constrained version of the well-known Direct Linear Transform (DLT) algorithm, reducing its degrees of freedom from 11 to 3. Experimental evaluation to ensure that the method is fast and more accurate than other existing methods. The low segmentation error level also ensures accurate calibration of the c-arm.
calibration x-ray direct linear transform intra-operative imaging