X-Rays for Measurement
Learning Objectives
X-ray Images for Measurement
3D measurement using perspective projections
Identical to Video Camera Model
Homogeneous Coordinates
Perspective projection degrees of freedom
3D calibration
Decomposition of matrix into 10 parameters
Geometric Distortion Correction
Geometric distortion correction
Tsais method (Tsai A Versatile Camera Calibration technique, 1987)
3D Reconstruction
Reconstruction from corresponding coordinates in 2 views
Reconstruction from 2 points
Reconstruction using epipolar constraint
3D reconstruction by epipolar constraint
Accuracy of 3D Calibration
Intensity Calibration in X-ray imaging
Image Intensity Calibration
Intensity Calibration (continued)
Vascular Imaging
Quantitative Angiography
Blood Vessel Lumen Area Measurement
Vessel Tracking Sen et al 1999
X-ray blood flow measurements
Methods based on continuity equation
Analysis of bone structure with X-rays
Image analysis protocol for joint space width John Lynch PhD Thesis London University 1993
Precision of Medial Minimum JSW Measurements Buckland-Wright (1995)
Accuracy of Medial Minimum JSW Measurements: Comparison With Microfocal Radiography Buckland-Wright 1995
PPT Slide
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