Towards geometrical calibration of x-ray computed tomography systems—a review
Industrial x-ray computed tomography (XCT) is seen as a potentially effective tool for the
industrial inspection of complex parts. In particular, XCT is an attractive solution for the …
industrial inspection of complex parts. In particular, XCT is an attractive solution for the …
Rigid motion compensation in interventional C-arm CT using consistency measure on projection data
R Frysch, G Rose - Medical Image Computing and Computer-Assisted …, 2015 - Springer
Interventional C-arm CT has the potential to visualize brain hemorrhages in the operating
suite and save valuable time for stroke patients. Due to the critical constitution of the …
suite and save valuable time for stroke patients. Due to the critical constitution of the …
Calibration for circular cone-beam CT based on consistency conditions
In cone-beam computed tomography (CT), imprecise knowledge of the acquisition geometry
can severely impact the quality of the reconstructed image. This paper investigates …
can severely impact the quality of the reconstructed image. This paper investigates …
X-ray posenet: 6 dof pose estimation for mobile x-ray devices
M Bui, S Albarqouni, M Schrapp… - 2017 IEEE Winter …, 2017 - ieeexplore.ieee.org
Precise reconstruction of 3D volumes from X-ray projections requires precisely pre-
calibrated systems where accurate knowledge of the systems geometric parameters is …
calibrated systems where accurate knowledge of the systems geometric parameters is …
Data consistency conditions in X-ray transmission imaging and their application to the self-calibration problem.
J Lesaint - 2018 - theses.hal.science
In X-ray transmission imaging, the collected measurements correspond to an integral
operator: the Radon transform in parallel geometry and the divergent beam transform in …
operator: the Radon transform in parallel geometry and the divergent beam transform in …
Tomosynthesis implementation with adaptive online calibration on clinical c-arm systems
K Chung, LR Schad, FG Zöllner - International journal of computer assisted …, 2018 - Springer
Purpose Cone beam computed tomography (CBCT) systems offer physicians crucial 3D and
2D imaging capabilities during interventions. However, certain medical applications only …
2D imaging capabilities during interventions. However, certain medical applications only …
Feature-based CBCT self-calibration for arbitrary trajectories
C Tönnes, T Russ, LR Schad, FG Zöllner - International Journal of …, 2022 - Springer
Purpose Development of an algorithm to self-calibrate arbitrary CBCT trajectories which can
be used to reduce metal artifacts. By using feature detection and matching we want to …
be used to reduce metal artifacts. By using feature detection and matching we want to …
Data sustained misalignment correction in microscopic cone beam CT via optimization under the Grangeat Epipolar consistency condition
Purpose The misalignment correction in cone beam computed tomography (CBCT), which is
usually carried out in an offline manner, is a difficult and tedious process. It becomes even …
usually carried out in an offline manner, is a difficult and tedious process. It becomes even …
Feature-Oriented CBCT Self-Calibration Parameter Estimator for Arbitrary Trajectories: FORCAST-EST
C Tönnes, FG Zöllner - Applied Sciences, 2023 - mdpi.com
Background: For the reconstruction of Cone-Beam CT volumes, the exact position of each
projection is needed; however, in some situations, this information is missing. Purpose: The …
projection is needed; however, in some situations, this information is missing. Purpose: The …
基于稀疏随机投影的SIFT 医学图像配准算法
杨飒， 郑志硕 - 量子电子学报, 2015 - lk.hfcas.ac.cn
针对尺度不变特征变换(Scale-Invariant Feature Transform, SIFT) 算法在关键点特征描述向量
阶段计算复杂并且维数较高的现象, 提出了一种基于压缩感知理论的SIFT 算法 …
阶段计算复杂并且维数较高的现象, 提出了一种基于压缩感知理论的SIFT 算法 …