'Back projection' presentation slideshows

Computed Tomography

Computed Tomography. CT, CAT tomos = slice, graphein = to write. Magdalena Bazalova. 1. What is a CT scanner?. an X-ray device capable of cross-sectional imaging creates images of slices through the patient. What is a CT scanner?. doughnut shaped gantry with moving patient table. Why CT?.

1.41k views • 74 slides

Computed Tomography

Computed Tomography. Slide made by ??? , ? ? ? ???? : ? ? ? E-mail: b04902086@ntu.edu.tw. Outline. Introduction (Filtered Back Projection) FBP Laminography Algebraic Reconstruction Technique (ART) Variations on ART The Factors Affecting the Algebraic Reconstruction Technique

732 views • 65 slides

Pozitron-Emission Tomography Reconstruction ( A computer graphics view )

731 views • 56 slides

Computed Tomography

Computed Tomography. Tomos = slice. CT scan. Mathematical idea developed by Radon in 1917 Cormack did the instrumentation research 1963 published it A practical x-ray CT scanner was built by Hounsfield. When was the first computer introduced in laboratories?. The main idea.

830 views • 51 slides

Virtual Viewpoint Reality NTT: Visit 1/7/99

Virtual Viewpoint Reality NTT: Visit 1/7/99. Overview of VVR Meeting. Motivation from MIT ... Discuss current and related work Video Activity Monitoring and Recognition 3D Modeling Demonstrations Related NTT Efforts Discussion of collaboration Future work Lunch. Motivating Scenario.

453 views • 37 slides

Sample CT Image

Sample CT Image. X-ray. 2 % attenuation change detectable in film. CT. 0.2 % change in attenuation coefficient. y. x. f(x,y). CT, like X-ray measure line integrals. ? ? ? ? ?. g(R) = CT detector array output. g(R). Direct Methods. Radon Transform 1917

375 views • 34 slides

Eigenfaces (2)

514 views • 33 slides

The HESSI Imaging Process

The HESSI Imaging Process. How HESSI Images.

394 views • 30 slides

Magnetic Resonance Imaging

421 views • 27 slides

Medical Imaging Topic: Radon Transform & Inverse Radon Transf.

ENEE631 Fall 2001 Lecture-22. Medical Imaging Topic: Radon Transform & Inverse Radon Transf. Min Wu Electrical & Computer Engineering Univ. of Maryland, College Park. ? http:// www.ece.umd.edu/class/enee631/ ? minwu@eng.umd.edu. Last Time. Sampling rate conversion

583 views • 26 slides

388 views • 24 slides

Application of Digital Signal Processing in Computed tomography (CT)

Application of Digital Signal Processing in Computed tomography (CT). EE 518 project slides By Nasser Abbasi. CT Overview. Uses X-ray to obtain multiple projections at different angles of the same cross section.

226 views • 19 slides

The RHESSI Imaging Concept

The RHESSI Imaging Concept. Rick Pernak Laboratory for Solar and Space Physics Goddard Space Flight Center And The Catholic University of America. RHESSI. NASA SMEX mission Designed to observe solar flares in X-rays and Gamma Rays Unprecedented Resolution Spatial Spectral Temporal

289 views • 18 slides

An experiment in computed tomography

An experiment in computed tomography. Elliot Mylott (emylott@pdx.edu) Ryan Klepetka Justin Dunlap Ralf Widenhorn (ralfw@pdx.edu). Buzug, Thorsten M. Computed Tomography: From Photon Statistics to Modern Cone-Beam CT. Physics Department Portland State University, Portland, OR. Objectives.

406 views • 17 slides

Parallelization of System Matrix generation code

Parallelization of System Matrix generation code. Mahmoud Abdallah Antall Fernandes. SPECT System. SPECT System. Inverse Cone. Back Projection. Filtered Back Projection is applying a ramp filter on the back projected image. Still widely used for its high speed and easy implementation.

272 views • 16 slides

ramp filter

436 views • 15 slides

Image Reconstruction on Multicore Processors

Image Reconstruction on Multicore Processors. Graduate Students Eric Fontaine and Viraj Paropkari Faculty Members: Ada Gavrilovska and Hsien-Hsin S. Lee. Agenda. Background FDK algorithm Overview Parallelization Method Current Results Katsevich Algorithm Overview

285 views • 14 slides

Back Projection

365 views • 11 slides

SAR Processing Performance on Cell Processor and Xeon

SAR Processing Performance on Cell Processor and Xeon. Mark Backues, SET Corporation Uttam Majumder, AFRL/RYAS. SAR imaging algorithm optimized for both Cell processor and Quad-Core Xeon Cell implementation partially modeled after Richard Linderman work

279 views • 11 slides

SAR Processing Performance on Cell Processor and Xeon

SAR Processing Performance on Cell Processor and Xeon. Mark Backues, SET Corporation Uttam Majumder, AFRL/RYAS. SAR imaging algorithm optimized for both Cell processor and Quad-Core Xeon Cell implementation partially modeled after Richard Linderman work

221 views • 11 slides