Reducing artifacts from varying projection truncations

Leise Borg; Jakob Sauer Jørgensen; Jürgen Frikel; Eric Todd Quinto; Jon Sporring

Reducing artifacts from varying projection truncations

Leise Borg, Jakob Sauer Jørgensen, Jürgen Frikel, Eric Todd Quinto, Jon Sporring

Research output: Contribution to conference › Paper › Research

Abstract

We study samples with full and partial occlusion causing streak artifacts, and propose two modifications of filtered backprojection for artifact removal. Data is obtained by the SPring-8 synchrotron using a monochromatic parallel-beam scan [1]. Thresholding in the sinogram segments the metal, resulting in edges on which we apply 1) a smooth transition, or 2) a Dirichlet boundary condition.

Original language	English
Publication date	2017
Number of pages	2
Publication status	Published - 2017
Event	3rd International Conference on Tomography of 3D Materials and Structures - Lund, Sweden Duration: 26 Jun 2017 → 30 Jun 2017 http://ictms2017.lth.se/

Conference

Conference	3rd International Conference on Tomography of 3D Materials and Structures
Country/Territory	Sweden
City	Lund
Period	26/06/2017 → 30/06/2017
Internet address	http://ictms2017.lth.se/

Keywords

X-ray tomography
Projection truncation
Streak artifacts
Boundary conditions

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title = "Reducing artifacts from varying projection truncations",

abstract = "We study samples with full and partial occlusion causing streak artifacts, and propose two modifications of filtered backprojection for artifact removal. Data is obtained by the SPring-8 synchrotron using a monochromatic parallel-beam scan [1]. Thresholding in the sinogram segments the metal, resulting in edges on which we apply 1) a smooth transition, or 2) a Dirichlet boundary condition.",

keywords = "X-ray tomography, Projection truncation, Streak artifacts, Boundary conditions",

author = "Leise Borg and J{\o}rgensen, {Jakob Sauer} and J{\"u}rgen Frikel and Quinto, {Eric Todd} and Jon Sporring",

year = "2017",

language = "English",

note = "3rd International Conference on Tomography of 3D Materials and Structures, ICTMS 2017 ; Conference date: 26-06-2017 Through 30-06-2017",

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TY - CONF

T1 - Reducing artifacts from varying projection truncations

AU - Borg, Leise

AU - Jørgensen, Jakob Sauer

AU - Frikel, Jürgen

AU - Quinto, Eric Todd

AU - Sporring, Jon

PY - 2017

Y1 - 2017

N2 - We study samples with full and partial occlusion causing streak artifacts, and propose two modifications of filtered backprojection for artifact removal. Data is obtained by the SPring-8 synchrotron using a monochromatic parallel-beam scan [1]. Thresholding in the sinogram segments the metal, resulting in edges on which we apply 1) a smooth transition, or 2) a Dirichlet boundary condition.

AB - We study samples with full and partial occlusion causing streak artifacts, and propose two modifications of filtered backprojection for artifact removal. Data is obtained by the SPring-8 synchrotron using a monochromatic parallel-beam scan [1]. Thresholding in the sinogram segments the metal, resulting in edges on which we apply 1) a smooth transition, or 2) a Dirichlet boundary condition.

KW - X-ray tomography

KW - Projection truncation

KW - Streak artifacts

KW - Boundary conditions

M3 - Paper

T2 - 3rd International Conference on Tomography of 3D Materials and Structures

Y2 - 26 June 2017 through 30 June 2017

ER -

Reducing artifacts from varying projection truncations

Abstract

Conference

Keywords

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