Automated 2D-3D registration of portal images and CT data using line-segment enhancement

Geometrical Transformation Approximation for 2D/3D Intensity-Based Registration of Portal Images and CT Scan

3D-2D registration of histological images with micro CT volumes using Chamfer Matching and simulated annealing

A Novel Approach for the Registration of 2D Portal and 3D CT Images for Treatment Setup Verification in Radiotherapy

In this paper we present a framework to simultaneously segment portal images and register them to 3D treatment planning CT data sets for the purpose of radiotherapy setup verification. Due to the low resolution and low contrast of the portal image, taken with a high energy treatment photon beam, registration to the 3D CT data is a difficult problem. However, if some structure can be segmented i...

Registration of Indoor 3D Range Images using Virtual 2D Scans

For mapping purposes, autonomous robots have to be capable to register 3D range images taken by 3D laser sensors into a common coordinate system. One approach is the Iterative Closest Point (ICP) algorithm. Due to its high computational costs, the ICP algorithm is not suitable for registering 3D range images online. This paper presents a novel approach for registering indoor 3D range images usi...

2D-3D Registration of Cardiac Images Using Catheter Constraints

Cardiac catheterization procedures are routinely guided by X-ray fluoroscopy but suffer from poor softtissue contrast and a lack of depth information. These procedures often employ pre-operative magnetic resonance or computed tomography imaging for treatment planning due to their excellent soft-tissue contrast and 3D imaging capabilities. We developed a 2D-3D image registration method to consol...