How to Do Research II?
Points in Last Lecture
Points in This Lecture
Initiation
Big Dream for Inner Vision
Imagination
Big Idea for Tomography
Attenuation of X-ray
Ray-Sums
Intuition
Intuition 0: View from All Angles
Projection & Sinogram
Computed Tomography
CT Scanner
Intuition 1: Sum Game
Approach 1: Linear Algebra
Intuition 2: Wave Decomposition
Approach 2: Transformation
Fourier Slice Theorem
From Projections to Image
Intuition 3: Peeling an Onion
Approach 3: Series Expansion
Formulation
Inversion Formula
Validation
CT Software Simulator
Dynamic CT of a Simplified Lung
Realistic Lung Phantom
Phantom Experiment
Modification/Extension
Sufficient Condition: 2D
Fan-Beam CT
Half-Scan
Flexible Locus
Helical Scanning
Cone-Beam CT
Sufficient Condition: 3D
Grangeat Formula
Helical Cone-Beam Scanning
Generalized Grangeat Formula
Application
Bone Densitometry
Small Animal Imaging
Thank-You
Email: ge-wang@uiowa.edu
Home Page: http://dolphin.radiology.uiowa.edu/ge