Structured light 3D tracking system for measuring motions in PET brain imaging

Oline Vinter Olesen; Morten Rudkjær Jørgensen; Rasmus Reinhold Paulsen; Liselotte Højgaard; Bjarne Roed; Rasmus Larsen

doi:10.1117/12.845060

Structured light 3D tracking system for measuring motions in PET brain imaging

Oline Vinter Olesen, Morten Rudkjær Jørgensen, Rasmus Reinhold Paulsen, Liselotte Højgaard, Bjarne Roed, Rasmus Larsen

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

Patient motion during scanning deteriorates image quality, especially for high resolution PET scanners. A new proposal for a 3D head tracking system for motion correction in high resolution PET brain imaging is set up and demonstrated. A prototype tracking system based on structured light with a DLP projector and a CCD camera is set up on a model of the High Resolution Research Tomograph (HRRT). Methods to reconstruct 3D point clouds of simple surfaces based on phase-shifting interferometry (PSI) are demonstrated. The projector and camera are calibrated using a simple stereo vision procedure where the projector is treated as a camera. Additionally, the surface reconstructions are corrected for the non-linear projector output prior to image capture. The results are convincing and a first step toward a fully automated tracking system for measuring head motions in PET imaging

Original language	English
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7625
Pages (from-to)	76250X
Number of pages	11
ISSN	0277-786X
DOIs	https://doi.org/10.1117/12.845060
Publication status	Published - 2010
Event	SPIE Medical Imaging 2010 - San Diego, United States Duration: 13 Feb 2010 → 18 Feb 2010

Conference

Conference	SPIE Medical Imaging 2010
Country/Territory	United States
City	San Diego
Period	13/02/2010 → 18/02/2010

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title = "Structured light 3D tracking system for measuring motions in PET brain imaging",

abstract = "Patient motion during scanning deteriorates image quality, especially for high resolution PET scanners. A new proposal for a 3D head tracking system for motion correction in high resolution PET brain imaging is set up and demonstrated. A prototype tracking system based on structured light with a DLP projector and a CCD camera is set up on a model of the High Resolution Research Tomograph (HRRT). Methods to reconstruct 3D point clouds of simple surfaces based on phase-shifting interferometry (PSI) are demonstrated. The projector and camera are calibrated using a simple stereo vision procedure where the projector is treated as a camera. Additionally, the surface reconstructions are corrected for the non-linear projector output prior to image capture. The results are convincing and a first step toward a fully automated tracking system for measuring head motions in PET imaging",

author = "Olesen, {Oline Vinter} and J{\o}rgensen, {Morten Rudkj{\ae}r} and Paulsen, {Rasmus Reinhold} and Liselotte H{\o}jgaard and Bjarne Roed and Rasmus Larsen",

year = "2010",

doi = "10.1117/12.845060",

language = "English",

volume = "7625",

pages = "76250X",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

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note = "SPIE Medical Imaging 2010 ; Conference date: 13-02-2010 Through 18-02-2010",

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AU - Olesen, Oline Vinter

AU - Jørgensen, Morten Rudkjær

AU - Paulsen, Rasmus Reinhold

AU - Højgaard, Liselotte

AU - Roed, Bjarne

AU - Larsen, Rasmus

PY - 2010

Y1 - 2010

N2 - Patient motion during scanning deteriorates image quality, especially for high resolution PET scanners. A new proposal for a 3D head tracking system for motion correction in high resolution PET brain imaging is set up and demonstrated. A prototype tracking system based on structured light with a DLP projector and a CCD camera is set up on a model of the High Resolution Research Tomograph (HRRT). Methods to reconstruct 3D point clouds of simple surfaces based on phase-shifting interferometry (PSI) are demonstrated. The projector and camera are calibrated using a simple stereo vision procedure where the projector is treated as a camera. Additionally, the surface reconstructions are corrected for the non-linear projector output prior to image capture. The results are convincing and a first step toward a fully automated tracking system for measuring head motions in PET imaging

AB - Patient motion during scanning deteriorates image quality, especially for high resolution PET scanners. A new proposal for a 3D head tracking system for motion correction in high resolution PET brain imaging is set up and demonstrated. A prototype tracking system based on structured light with a DLP projector and a CCD camera is set up on a model of the High Resolution Research Tomograph (HRRT). Methods to reconstruct 3D point clouds of simple surfaces based on phase-shifting interferometry (PSI) are demonstrated. The projector and camera are calibrated using a simple stereo vision procedure where the projector is treated as a camera. Additionally, the surface reconstructions are corrected for the non-linear projector output prior to image capture. The results are convincing and a first step toward a fully automated tracking system for measuring head motions in PET imaging

U2 - 10.1117/12.845060

DO - 10.1117/12.845060

M3 - Conference article

SN - 0277-786X

VL - 7625

SP - 76250X

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - SPIE Medical Imaging 2010

Y2 - 13 February 2010 through 18 February 2010

ER -

Structured light 3D tracking system for measuring motions in PET brain imaging

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